Ram Chassis Cab · Model year 2018
2018 Ram Chassis Cab specs, maintenance & manuals
Shopping for a used 2018 Ram Chassis Cab or keeping one on the road? Here are the factory spec sheet, the maintenance schedule, fluid capacities and 16 manufacturer publications, straight from the factory sources.
- Horsepower
- 320–410 hp
- Recalls
- 9
- Schedule covers
- 150k miles
- Publications
- 16
What changed for the 2018 Ram Chassis Cab
The 2018 Chassis Cab versus 2017: what's different, from the factory charts and spec sheets.
- Powertrain: Alternate left side requires AISIN joins the lineup.
- Powertrain no longer listed: Alternate left side requires Aisin automatic.
- Package no longer offered: Smoker’s Group.
- Paint: dropped Black, Black/Diesel Gray and Canyon Brown/Light Frost Beige.
All the differences we found
Listed for the first time on the equipment chart
- ParkSense rear park assist system — optional: Tradesman, SLT, Laramie
- 19.5- x 6-in. polished aluminum — standard: Laramie — optional: Tradesman, SLT
- 19.5- x 6-in. steel — standard: Tradesman, SLT
- Floor Mats: Passenger-side visor with mirror — standard: Tradesman, SLT
- Headlamps: Halogen — bi-functional projector — standard: Laramie
- Mirrors: Passenger-side visor with mirror — standard: Tradesman, SLT
- SiriusXM Guardian included with 8.4-in. radios — optional: SLT, Laramie
- SiriusXM Travel Link and Traffic Plus - included with 8.4-in. radios — optional: SLT, Laramie
No longer on the equipment chart
- Mirrors: Day/night rearview with Uconnect
- Remote start system — requires automatic transmission
- Tires — 4500/5500: Spare, full-size
- Cigar lighter — included with Smoker’s Group
- Engine five-minute shutdown timer
- Headlamps: Halogen, bifunctional projector
- Visors: Front-passenger, with mirror
- Wheels — 4500/5500: 19.5- x 6-in. polished aluminum
- Wheels — 4500/5500: 19.5- x 6-in. steel
Compared automatically from the manufacturer's trim feature charts, specification sheets, towing guides and the EPA's fuel-economy data for 2017 and 2018. Equipment varies by trim and market; confirm details on a specific vehicle.
2018 Ram Chassis Cab specs & features
Engines, gear ratios, suspension, brakes, dimensions and capacities as published in the manufacturer's 2018 specification sheets.
General information3 specs
- Vehicle Type
- Chassis Cab: Regular Cab and Crew Cab
- Assembly Plant
- Saltillo Truck Assembly Plant, Coahuila, Mexico
- EPA Vehicle Class
- Large Pickup
Engines45 specs
| 6.4-liter HEMI V-8 | |
| Availability | Standard |
| Type and Description | 90-degree V-type, liquid-cooled, variable-valve timing (VVT) |
| Displacement | 392 cu. in. (6,417 cu. cm) |
| Bore x Stroke | 4.09 x 3.72 (103.9 x 94.6) |
| Valve System | Pushrod-operated overhead valves, 16 valves, eight de-activating and eight hydraulic lifters with roller followers |
| Fuel Injection | Sequential, multiport, electronic, returnless |
| Construction | Deep-skirt cast-iron block with cross-bolted main bearing caps, 356 aluminum cylinder heads with hemispherical combustion chambers |
| Compression Ratio | 10:1 |
| Power | 410 hp (302 kW) @ 5,600 rpm; Up to 370 hp (267kW) @ 4,600 rpm (over 10k rating) |
| Torque | 429 lb.-ft. (582 N•m) at 4,000 rpm |
| Maximum Engine Speed | 5,800 rpm limited; 4,800 rpm with Aisin transmission |
| Fuel Requirement | Unleaded regular, 87 octane (R+M)/2 |
| Oil Capacity | 7 quarts (6.6 liters) |
| Coolant Capacity | 16.6 quarts (15.8 liters) |
| Emission Control | Three-way catalytic converters, heated oxygen sensors, cooled electronic EGR and individual cylinder fuel control |
| 6.7-liter Cummins turbo diesel I-6 | |
| Availability | Manual six-speed transmission |
| Type and Description | Inline, liquid-cooled, turbocharged, intercooled |
| Displacement | 408 cu. in. (6,690 cu. cm) |
| Bore x Stroke | 4.21 x 4.88 (107 x 124) |
| Valve System | Pushrod-operated overhead valves, 24 valves, solid lifters |
| Fuel Injection | Electronic high-pressure common rail |
| Construction | Cast-iron block and head |
| Compression Ratio | 17.3:1 |
| Power | 320 bhp (239 kW) @ 2,800 rpm |
| Torque | 650 lb.-ft. (881 N•m) @ 1,400 rpm |
| Maximum Engine Speed | 3,200 rpm |
| Fuel Requirement | Ultra-low sulfur diesel |
| Oil Capacity | 12.0 quarts (11.3 liters) with filter |
| Coolant Capacity | 23.8 quarts (22.5 liters) |
| Emission Controls | Selective Catalytic Reduction (SCR) |
| 6.7-liter high output Cummins turbo diesel I-6 | |
| Availability | Optional (Aisin six-speed automatic) |
| Type and Description | Inline, liquid-cooled, turbocharged, intercooled |
| Displacement | 408 cu. in. (6,690 cu. cm) |
| Bore x Stroke | 4.21 x 4.88 (107 x 124) |
| Valve System | Pushrod-operated overhead valves, 24 valves, solid lifters |
| Fuel Injection | Electronic high-pressure common rail |
| Construction | Cast-iron block and head |
| Compression Ratio | 17.3:1 |
| Power | 325 bhp (242 kW) @ 2,400 rpm |
| Torque | 750 lb.-ft. (1,017 N•m) @ 1,500 rpm |
| Maximum Engine Speed | 3,200 rpm |
| Fuel Requirement | Ultra-low sulfur diesel |
| Oil Capacity | 12.0 quarts (11.3 liters) with filter |
| Coolant Capacity | 23.8 quarts (22.5 liters) |
| Emission Controls | Selective Catalytic Reduction (SCR) |
Transmissions43 specs
| G56 — manual six-speed overdrive | |
| Availability | 6.7-liter diesel |
| Description | Synchronized in all gears |
| Axle ratios | 3.42, 3.73, 4.10 |
| PTO | Left- or right-side with split-shaft capability |
| 66RFE — automatic six-speed | |
| Availability | 6.4-liter HEMI V-8 |
| Description | Three planetary gear sets, one overrunning clutch, full electronic control, electronically controlled converter clutch |
| Axle ratios | 5.7-liter: 4.10; 6.4-liter: 4.10 |
| AS66RC — automatic six-speed | |
| Availability | 6.4-liter HEMI V-8 |
| Description | Three planetary gear sets, one overrunning clutch, full electronic control, electronically controlled converter clutch |
| Axle ratios | 4.44 |
| PTO | Left- or right-side capability |
| AS69RC — automatic six-speed | |
| Availability | 6.7-liter diesel |
| Description | Three planetary gear sets, one overrunning clutch, full electronic control, electronically controlled converter clutch |
| Axle ratios | 3.42, 3.73, 4.10 |
| PTO | Left- or right-side with split shaft capability |
| Gear ratios | G56 — manual six-speed overdrive | 66RFE — automatic six-speed | AS66RC — automatic six-speed | AS69RC — automatic six-speed |
|---|---|---|---|---|
| 1st | 5.94 | 3.23 | 3.75 | 3.75 |
| 2nd | 3.28 | 1.84 | 2.0 | 2.0 |
| 3rd | 1.98 | 1.41 | 1.34 | 1.34 |
| 4th | 1.31 | 1.00 | 1.0 | 1.0 |
| 5th | 1.0 | 0.82 | 0.77 | 0.77 |
| 6th | 0.74 | 0.63 | 0.63 | 0.63 |
| Reverse | 5.42 | 4.44 | 3.54 | 3.54 |
Transfer casesBW 44-46, BW 44-47Transfer cases: BW 44-46, BW 44-475 specs
- Availability
- Optional on 6.7-liter diesel and 6.4-liter HEMI V-8
- Type
- Part-time – BW 44-47 manual shift and BW 44-46 electric shift
- Operating Modes
- 2WD; 4WD High; Neutral; 4WD Low
- Low-range Ratio
- 2.64
- Center Differential
- None
Suspension2 specs
- Front
- Three-link with track bar, coil springs, stabilizer bar, twin-tube shock absorbers, solid axle
- Rear
- Hotchkiss leaf spring suspension, solid axle
Brakes3 specs
- Front
- 14.2 x 1.5 (360 x 39) vented disc with twin 2.4 (60) piston caliper
- Rear
- 14.1 x 1.3 (358 x 34) vented disc with twin 1.8 (45) piston caliper for SRW, 2.0 (51) for DRW
- Power-assist
- Hydroboost
Air bags2 specs
- Regular Cab
- 2
- Crew Cab
- 2
Steering1 spec
- Power-assist
- Hydraulic assist
Dimensions and capacities48 specs
| 4x2 | 4x4 | |
|---|---|---|
| Regular Cab 143.5-in. WB, 60-in. CA SRW | ||
| Wheelbase | 143.5 (3,644.9) | 143.5 (3,644.9) |
| Turning diameter – ft. (m)(a) | 45.0 (13.7) | 55.5 (16.9) |
| Track Width – Front | 76.0 (1,930.4) | 76.0 (1,930.4) |
| Track Width – Rear | 73.6 (1,869.4) | 73.6 (1,869.4) |
| Overall Length | 234.3 (5,952.1) | 234.3 (5,952.1) |
| Overall Width @ Single Ground Reference Point (SgRP) Front | 78.9 (2,004.1) | 78.9 (2,004.1) |
| Overall Height | 80.1 (2,034.5) | 80.1 (2,034.5) |
| Suspension or Axle to Ground – Front | 10.3 (261.6) | 8.7 (221.0) |
| Suspension or Axle to Ground – Rear | 8.4 (213.4) | 8.4 (213.4) |
| Approach Angle (degrees) | 28.3 | 28.3 |
| Ramp Breakover Angle (degrees) | 23.7 | 23.7 |
| Departure Angle (degrees) | 31.1 | 31.1 |
| Regular Cab 143.5-in. WB, 60-in. CA DRW | ||
| Wheelbase | 143.5 (3,644.9) | 143.5 (3,644.9) |
| Turning diameter – ft. (m)(a) | 45.0 (13.7) | 55.5 (16.9) |
| Track Width – Front | 76.0 (1,930.4) | 76.0 (1,930.4) |
| Track Width – Rear | 73.6 (1,869.4) | 73.6 (1,869.4) |
| Overall Length | 234.3 (5,952.1) | 234.3 (5,952.1) |
| Overall Width @ Single Ground Reference Point (SgRP) Front | 78.9 (2,004.1) | 78.9 (2,004.1) |
| Overall Height | 80.1 (2,034.5) | 80.1 (2,034.5) |
| Suspension or Axle to Ground – Front | 10.3 (261.6) | 8.7 (221.0) |
| Suspension or Axle to Ground – Rear | 8.4 (213.4) | 8.4 (213.4) |
| Approach Angle (degrees) | 28.3 | 28.3 |
| Ramp Breakover Angle (degrees) | 23.7 | 23.7 |
| Departure Angle (degrees) | 31.1 | 31.1 |
| Regular Cab 167.5-in. WB, 84-in. CA DRW | ||
| Wheelbase | 167.5 (4,254.5) | 167.5 (4,254.5) |
| Turning diameter – ft. (m)(a) | 51.8 (15.8) | 51.8 (15.8) |
| Track Width – Front | 76.0 (1,930.4) | 76.0 (1,930.4) |
| Track Width – Rear | 73.6 (1,869.4) | 73.6 (1,869.4) |
| Overall Length | 258.3 (6,560.8) | 258.3 (6,560.8) |
| Overall Width @ Single Ground Reference Point (SgRP) Front | 78.9 (2,004.1) | 78.9 (2,004.1) |
| Overall Height | 80.0 (2,032) | 80.0 (2,032) |
| Suspension or Axle to Ground – Front | 10.3 (261.6) | 8.7 (221.0) |
| Suspension or Axle to Ground – Rear | 8.4 (213.4) | 8.4 (213.4) |
| Approach Angle (degrees) | 28.4 | 28.4 |
| Ramp Breakover Angle (degrees) | 20.8 | 20.8 |
| Departure Angle (degrees) | 31.0 | 31.0 |
| Crew Cab 172.4-in. WB, 60-in. CA DRW | ||
| Wheelbase | 172.4 (4,379) | 172.4 (4,379) |
| Turning diameter – ft. (m)(a) | 53.2 (16.2) | 53.2 (16.2) |
| Track Width – Front | 76.0 (1,930.4) | 76.0 (1,930.4) |
| Track Width – Rear | 73.6 (1,869.4) | 73.6 (1,869.4) |
| Overall Length | 282.3 (7,170.4) | 282.3 (7,170.4) |
| Overall Width @ Single Ground Reference Point (SgRP) Front | 78.9 (2,004.1) | 78.9 (2,004.1) |
| Overall Height | 79.9 (2,029.5) | 79.9 (2,029.5) |
| Suspension or Axle to Ground – Front | 10.3 (261.6) | 8.8 (223.5) |
| Suspension or Axle to Ground – Rear | 8.4 (213.4) | 8.4 (213.4) |
| Approach Angle (degrees) | 28.5 | 28.5 |
| Ramp Breakover Angle (degrees) | 18.2 | 18.2 |
| Departure Angle (degrees) | 30.9 | 30.9 |
(a) Turning diameter is measured at the outside of the tires at curb height; it and steering wheel turns lock-to-lock may differ with optional tires and wheels.
Accommodations13 specs
| Regular Cab | Crew Cab | |
|---|---|---|
| Seating Capacity, F/R | 3/0 or 2/0 | 3/3 or 2/3 |
| Front – Headroom | 39.9 (1,013.5) | 41 (1,040.5) |
| Front – Legroom | 41 (1,041.4) | 41 (1,041.4) |
| Front – Shoulder Room | 66 (1,676.4) | 66 (1,676.4) |
| Front – Hip Room | 62.9 (1,598.7) | 63.2 (1,605.3) |
| Front – Seat Travel | 9 (230.0) | 9 (230.0) |
| Front – Recliner Range (degrees) | 85 (38 RWD, 47 FWD) | 56 (38 RWD, 18 FWD) |
| Rear – Headroom | — | 39.9 (1,013.5) |
| Rear – Legroom | — | 40.3 (1,023.3) |
| Rear – Shoulder Room | — | 65.7 (1,668.8) |
| Rear – Hip Room | — | 63.2 (1,605.3) |
| Interior Volume – Front – cu. ft. (cu. m) | 62.5 (1.8) | 64.2 (1.8) |
| Interior Volume – Rear – cu. ft. (cu. m) | — | 61.1 (1.7) |
— not listed or not applicable
Source: 2018 Ram Commercial 3500 Chassis Cab Specifications (Stellantis media site).
General information3 specs
- Vehicle Type
- Chassis Cab: Regular Cab and Crew Cab, 2WD, 4WD
- Assembly Plant
- Saltillo Truck Assembly Plant, Coahuila, Mexico
- EPA Vehicle Class
- Medium Heavy Duty
Engines45 specs
| 6.4-liter HEMI V-8 | |
| Availability | Standard |
| Type and Description | Eight-cylinder, 90-degree V-type, liquid-cooled, with variable-valve timing (VVT) |
| Displacement | 392 cu. in. (6,417 cu. cm) |
| Bore x Stroke | 4.09 x 3.72 (103.9 x 94.6) |
| Valve System | VVT, push-rod operated overhead valves (16, two per cylinder), eight de-activating and eight hydraulic lifters with all roller followers |
| Fuel Injection | Sequential, multiport, electronic, returnless |
| Construction | Deep-skirt cast-iron block with cross-bolted main bearing caps, 356 aluminum cylinder heads with hemispherical combustion chambers |
| Compression Ratio | 10:1 |
| Power (SAE gross) | 366 hp (302 kW) @ 4,500 rpm |
| Torque (SAE gross) | 429 lb.-ft. (582 N•m) at 4,500 rpm |
| Maximum Engine Speed | 4,800 rpm limited with Aisin |
| Fuel Requirement | Unleaded regular, 87 octane (R+M)/2 |
| Oil Capacity | 7 quarts (6.6 liters) |
| Coolant Capacity | 18.3 quarts (17.3 liters) |
| Emission Control | Three-way catalytic converters, heated oxygen sensors, cooled electronic EGR and individual cylinder fuel control |
| 6.7-liter Cummins turbo diesel I-6 | |
| Availability | Manual six-speed transmission |
| Type and Description | Six-cylinder, inline, liquid-cooled, turbocharged, intercooled |
| Displacement | 408 cu. in. (6,690 cu. cm) |
| Bore x Stroke | 4.21 x 4.88 (107 x 124) |
| Valve System | OHV, 24 valves, solid lifters |
| Fuel Injection | Electronic high-pressure common rail |
| Construction | Cast-iron block and head |
| Compression Ratio | 17.3:1 |
| Power (SAE gross) | 320 hp (239 kW) @ 2,800 rpm |
| Torque (SAE net) | 650 lb.-ft. (881 N•m) @ 1,400 rpm |
| Maximum Engine Speed | 3,200 rpm |
| Fuel Requirement | Ultra-low sulfur diesel |
| Oil Capacity | 12.0 quarts (11.3 liters) with filter |
| Coolant Capacity | 23.8 quarts (22.5 liters) |
| Emission Controls | Selective Catalytic Reduction (SCR) |
| 6.7-liter high output Cummins turbo diesel I-6 | |
| Availability | Optional with Aisin six-speed automatic |
| Type and Description | Six-cylinder, inline, liquid-cooled, turbocharged, intercooled |
| Displacement | 408 cu. in. (6,690 cu. cm) |
| Bore x Stroke | 4.21 x 4.88 (107 x 124) |
| Valve System | OHV, 24 valves, solid lifters |
| Fuel Injection | Electronic high-pressure common rail |
| Construction | Cast-iron block and head |
| Compression Ratio | 17.3:1 |
| Power (SAE gross) | 325 hp (242 kW) @ 2,400 rpm |
| Torque (SAE gross) | 750 lb.-ft. (1,017 N•m) @ 1,500 rpm |
| Maximum Engine Speed | 3,200 rpm |
| Fuel Requirement | Ultra-low sulfur diesel |
| Oil Capacity | 12.0 quarts (11.3 liters) with filter |
| Coolant Capacity | 23.8 quarts (22.5 liters) |
| Emission Controls | Selective Catalytic Reduction (SCR) |
Transmission11 specs
| G56 — manual six-speed overdrive | AS66RC — automatic six-speed | AS69RC — automatic six-speed | |
|---|---|---|---|
| Availability | 6.7-liter diesel | 6.4-liter HEMI V-8 | 6.7-liter diesel |
| Description | Synchronized in all gears | Three planetary gear-sets, one overrunning clutch, full electronic control, electronically controlled converter clutch | Three planetary gear-sets, one overrunning clutch, full electronic control, electronically controlled converter clutch |
| 1st | 5.94 | 3.75 | 3.75 |
| 2nd | 3.28 | 2.0 | 2.0 |
| 3rd | 1.98 | 1.34 | 1.34 |
| 4th | 1.31 | 1.0 | 1.0 |
| 5th | 1.0 | 0.77 | 0.77 |
| 6th | 0.74 | 0.63 | 0.63 |
| Reverse | 5.42 | 3.54 | 3.54 |
| Axle ratios | 4500: 4.10, 4.44; 5500: 4.10, 4.44 | 4500: 4.44, 4.88; 5500: 4.88 | 4500: 4.10, 4.44; 5500: 4.10, 4.44 and 4.88 |
| PTO | Left- or right-side with split shaft capability | Left- or right-side capability | Left- or right-side with split shaft capability |
Transfer casesBW 44-46, BW 44-47Transfer cases: BW 44-46, BW 44-475 specs
- Availability
- Optional on 6.7-liter diesel and 6.4-liter HEMI V-8
- Type
- Part-time – BW 44-47 manual shift and BW 44-46 electric shift
- Operating Modes
- 2WD; 4WD High; Neutral; 4WD Low
- Low-range Ratio
- 2.64
- Center Differential
- None
Suspension2 specs
- Front
- Five-link suspension
- Rear
- Hotchkiss leaf spring suspension, solid axle
Brakes3 specs
- Front – Size and Type
- Rotors 15.3 x 1.5 (390 x 39) vented disc with two-piston 2.6 (66) caliper
- Rear – Size and Type
- Rotors 15.3 x 1.5 (390 x 39) vented disc with two-piston 2.6 (66) caliper
- Power-assist Type
- Hydro-boost
Air bags2 specs
- Regular Cab
- 2
- Crew Cab
- 2
Steering1 spec
- Power-assist
- Hydraulic assist
Dimensions and capacities72 specs
| 4x2 | 4x4 | |
|---|---|---|
| Regular Cab 144.5-in. WB, 60-in. CA DRW | ||
| Wheelbase | 144.5 (3,670.3) | 144.5 (3,670.3) |
| Turning Diameter – ft. (m)(a) | 41.7 (12.7) | 41.7 (12.7) |
| Track Width – Front | 76.0 (1,930.4) | 76.0 (1,930.4) |
| Track Width – Rear | 73.6 (1,869.4) | 73.6 (1,869.4) |
| Overall Length | 234.3 (5,951.2) | 234.3 (5,951.2) |
| Overall Width @ Single Ground Reference Point (SgRP) Front | 78.9 (2,004.1) | 78.9 (2,004.1) |
| Overall Height | 80.1 (2,034.5) | 80.1 (2,034.5) |
| Suspension or Axle to Ground – Front | 10.3 (261.6) | 8.7 (221) |
| Suspension or Axle to Ground – Rear | 8.4 (213.4) | 8.4 (213.4) |
| Approach Angle (degrees) | 28.3 | 28.3 |
| Ramp Breakover Angle (degrees) | 23.7 | 23.7 |
| Departure Angle (degrees) | 31.1 | 31.1 |
| Regular Cab 168.5-in. WB, 84-in. CA DRW | ||
| Wheelbase | 168.5 (4,279.9) | 168.5 (4,279.9) |
| Turning Diameter – ft. (m)(a) | 47.95 (14.6) | 47.95 (14.6) |
| Track Width – Front | 76.0 (1,930.4) | 76.0 (1,930.4) |
| Track Width – Rear | 73.6 (1,869.4) | 73.6 (1,869.4) |
| Overall Length | 258.3 (6,560.8) | 258.3 (6,560.8) |
| Overall Width @ Single Ground Reference Point (SgRP) Front | 78.9 (2,004.1) | 78.9 (2,004.1) |
| Overall Height | 80.0 (2,032) | 80.0 (2,032) |
| Suspension or Axle to Ground – Front | 10.3 (261.6) | 8.7 (221) |
| Suspension or Axle to Ground – Rear | 8.4 (213.4) | 8.4 (213.4) |
| Approach Angle (degrees) | 28.4 | 28.4 |
| Ramp Breakover Angle (degrees) | 20.8 | 20.8 |
| Departure Angle (degrees) | 31.0 | 31.0 |
| Regular Cab 192.5-in. WB, 108-in. CA DRW | ||
| Wheelbase | 192.5 (4,889.5) | 192.5 (4,889.5) |
| Turning Diameter – ft. (m)(a) | 54.09 (16.5) | 54.09 (16.5) |
| Track Width – Front | 76.0 (1,930.4) | 76.0 (1,930.4) |
| Track Width – Rear | 73.6 (1,869.4) | 73.6 (1,869.4) |
| Overall Length | 282.3 (7,170.4) | 282.3 (7,170.4) |
| Overall Width @ Single Ground Reference Point (SgRP) Front | 78.9 (2,004.1) | 78.9 (2,004.1) |
| Overall Height | 79.9 (2,029.5) | 79.9 (2,029.5) |
| Suspension or Axle to Ground – Front | 10.3 (261.6) | 8.8 (223.5) |
| Suspension or Axle to Ground – Rear | 8.4 (213.4) | 8.4 (213.4) |
| Approach Angle (degrees) | 28.5 | 28.5 |
| Ramp Breakover Angle (degrees) | 18.2 | 18.2 |
| Departure Angle (degrees) | 30.9 | 30.9 |
| Regular Cab 204.5-in. WB, 120-in. CA DRW | ||
| Wheelbase | 204.5 (5,194.3) | 204.5 (5,194.3) |
| Turning Diameter – ft. (m)(a) | 57.2 (17.4) | 57.2 (17.4) |
| Track Width – Front | 76.0 (1,930.4) | 76.0 (1,930.4) |
| Track Width – Rear | 73.6 (1,869.4) | 73.6 (1,869.4) |
| Overall Length | 294.3 (7,475.2) | 294.3 (7,475.2) |
| Overall Width @ Single Ground Reference Point (SgRP) Front | 78.9 (2,004.1) | 78.9 (2,004.1) |
| Overall Height | 79.8 (2,026.9) | 79.8 (2,026.9) |
| Suspension or Axle to Ground – Front | 10.3 (261.6) | 8.7 (221) |
| Suspension or Axle to Ground – Rear | 8.4 (213.4) | 8.4 (213.4) |
| Approach Angle (degrees) | 28.6 | 28.6 |
| Ramp Breakover Angle (degrees) | 17.2 | 17.2 |
| Departure Angle (degrees) | 30.8 | 30.8 |
| Crew Cab 173.4-in. WB, 60-in. CA DRW | ||
| Wheelbase | 173.4 (4,404.4) | 173.4 (4,404.4) |
| Turning Diameter – ft. (m)(a) | 49.2 (15) | 49.2 (15) |
| Track Width – Front | 76.0 (1,930.4) | 76.0 (1,930.4) |
| Track Width – Rear | 73.6 (1,869.4) | 73.6 (1,869.4) |
| Overall Length | 263.2 (6,685.3) | 263.2 (6,685.3) |
| Overall Width @ Single Ground Reference Point (SgRP) Front | 79.1 (2,009.1) | 79.1 (2,009.1) |
| Overall Height | 80.6 (2,047.2) | 80.6 (2,047.2) |
| Suspension or Axle to Ground – Front | 10.3 (261.6) | 8.7 (221) |
| Suspension or Axle to Ground – Rear | 8.4 (213.4) | 8.4 (213.4) |
| Approach Angle (degrees) | 28.5 | 28.5 |
| Ramp Breakover Angle (degrees) | 20.4 | 20.4 |
| Departure Angle (degrees) | 31.0 | 31.0 |
| Crew Cab 197.4-in. WB, 84-in. CA DRW | ||
| Wheelbase | 197.4 (5,014) | 197.4 (5,014) |
| Turning Diameter – ft. (m)(a) | 55.7 (17) | 55.7 (17) |
| Track Width – Front | 76.0 (1,930.4) | 76.0 (1,930.4) |
| Track Width – Rear | 73.6 (1,869.4) | 73.6 (1,869.4) |
| Overall Length | 287.2 (7,294.9) | 287.2 (7,294.9) |
| Overall Width @ Single Ground Reference Point (SgRP) Front | 79.1 (2,009.1) | 79.1 (2,009.1) |
| Overall Height | 80.5 (2,044.7) | 80.5 (2,044.7) |
| Suspension or Axle to Ground – Front | 10.3 (261.6) | 8.7 (221) |
| Suspension or Axle to Ground – Rear | 8.4 (213.4) | 8.4 (213.4) |
| Approach Angle (degrees) | 28.6 | 28.6 |
| Ramp Breakover Angle (degrees) | 17.8 | 17.8 |
| Departure Angle (degrees) | 30.8 | 30.8 |
(a) Turning diameter is measured at the outside of the tires at curb height; it and steering wheel turns lock-to-lock may differ with optional tires and wheels.
Accommodations13 specs
| Regular Cab | Crew Cab | |
|---|---|---|
| Seating Capacity, F/R | 3/0 or 2/0 | 3/3 or 2/3 |
| Front – Headroom | 39.9 (1,013.5) | 41.0 (1,041.4) |
| Front – Legroom | 41 (1,041.4) | 41 (1,041.4) |
| Front – Shoulder Room | 66 (1,676.4) | 66 (1,676.4) |
| Front – Hip Room | 62.9 (1,598.7) | 63.2 (1,605.3) |
| Front – Seat Travel | 9.0 (230.0) | 9.0 (230.0) |
| Front – Recliner Range (degrees) | 85 (38 RWD, 47 FWD) | 56 (38 RWD, 18 FWD) |
| Rear – Headroom | — | 39.9 (1,013.5) |
| Rear – Legroom | — | 40.3 (1,023.3) |
| Rear – Shoulder Room | — | 65.7 (1,668.8) |
| Rear – Hip Room | — | 63.2 (1,605.3) |
| Interior Volume – Front – cu. ft. (cu. m) | 62.5 (1.8) | 64.2 (1.8) |
| Interior Volume – Rear – cu. ft. (cu. m) | — | 61.1 (1.7) |
— not listed or not applicable
Source: 2018 Ram Commercial 4500/5500 Chassis Cab Specifications (Stellantis media site).
Which equipment is standard, optional or part of a package on each trim, from the manufacturer's 2018 feature availability guide.
Showing 102 of 204 features · swipe for more trims
StandardOptionalPart of a packageNot availableFleet-only optionEither, depending on configuration
| Feature | TradesmanReg/Crew | SLTReg/Crew | LaramieCrew |
|---|---|---|---|
| Mechanical Features | |||
| 180-amp, included with 6.4‑liter HEMI V‑8 and with Cummins Turbo Diesel engines | Std | Std | Std |
| 220-amp, included with Heavy‑Duty Snow Plow Prep Group and Ambulance Prep Group | Opt/Pkg | Opt/Pkg | Opt/Pkg |
| 380-amp, optional with 6.4‑liter HEMI V‑8 (dual 160-amp and 220-amp alternators) | Opt | Opt | Opt |
| 440-amp, optional with 6.7‑liter Cummins Turbo Diesel (dual 220-amp alternators; packaged with Emergency/Fire/Rescue Special Emissions Package) | Opt/Pkg | Opt/Pkg | Opt/Pkg |
| Battery — 730-amp (1 per vehicle with gas engine; two per vehicle with diesel engine) | Std | Std | Std |
| Biodiesel Compatibility (B20) | Opt | Opt | Opt |
| Diesel Exhaust Brake ("Smart" Exhaust Brake) — packaged with 6.7‑liter Cummins engine | Pkg | Pkg | Pkg |
| Engine block heater — optional with gas engine; included with Cold Weather Group with diesel engine | Opt/Pkg | Opt/Pkg | Opt/Pkg |
| Engine cooling — heavy-duty | Std | Std | Std |
| Two extra base keys (not available with Power and Remote Entry Group or Remote Keyless Entry) | Opt | N/A | N/A |
| Dual, 52- and 22‑gallon, totaling 74 gallons (not available on 3500 SRW and 60-in. CA with 6.4‑liter HEMI) | Opt | Opt | Opt |
| Single 22‑gallon, mid-ship-mounted (standard on 3500 SRW 10,000‑lb. GVWR models) | Std/Opt | Std/Opt | Std/Opt |
| Single 52‑gallon, rear-mounted (not available on 3500 SRW 10,000‑lb. GVWR models) | Std | Std | Std |
| Front, heavy-duty | Std | Std | Std |
| Rear, heavy-duty | Std | Std | Std |
| Skid plate — transfer case (4x4 only; included with Heavy‑Duty Snow Plow Prep Group) | Opt/Pkg | Opt/Pkg | Opt/Pkg |
| Stabilizer bar — front | Std | Std | Std |
| Steering — power, recirculating ball | Std | Std | Std |
| Tow hooks — available with gas engine on 3500; included with diesel engine on 3500 models; standard on 4500/5500 models | Std/Opt/Pkg | Std/Opt/Pkg | Std/Opt/Pkg |
| Transfer CasesManual shift, part-time (4x4 only) | Std | Std | N/A |
| Electric shift, part-time (4x4 only) | Opt | Opt | Std |
| Upfitter Electronic Interface Module (VSIM) — Over 50 inputs and outputs (packaged with Ambulance Prep Group) | Opt/Pkg | Opt/Pkg | Opt/Pkg |
| Voltage Monitoring Auto Idle-up system (included with Rollback Carrier Group and Ambulance Prep Group) | Opt/Pkg | Opt/Pkg | Opt/Pkg |
| Exterior Features | |||
| BadgingSLT | N/A | Std | N/A |
| Laramie | N/A | N/A | Std |
| BumperFront, black | Std | N/A | N/A |
| Front, chrome (included with Chrome Appearance Group) | Pkg | Std | Std |
| Chrome bodyside moldings — authentic accessory from Mopar | Opt | Opt | Opt |
| Authentic accessory from Mopar | Opt | Opt | Opt |
| Tubular side steps in chromeBlack (regular cab only) | Opt | Opt | N/A |
| Front, headlamp filler, black (standard on 4500 and 5500 models; included with low-volume paint) | Std | Std | Std |
| Front, headlamp filler in body color (3500 only) | Std | Std | Std |
| Fog lamps (available with Chrome Appearance Group on Tradesman and as a single option for SLT models) | Pkg | Opt | Std |
| GrillesBlack insert and surround | Std | N/A | N/A |
| Chrome surround, black insert (included with Chrome Appearance Group) | Pkg | Std | N/A |
| Chrome surround, chrome insert | N/A | N/A | Std |
| Automatic | Std | Std | Std |
| HeadlampsHalogen — quad-lens | Std | Std | N/A |
| Halogen — bi-functional projector | N/A | N/A | Std |
| Key-alike Feature — allows a single key to start multiple trucks | Opt | Opt | N/A |
| Lamps — cab-clearance | Std | Std | Std |
| MirrorsFolding trailer-tow, manual, black (regular cab only) | Std | N/A | N/A |
| Power multifunction trailer-tow, heated, manual folding, chrome; includes position memory, exterior courtesy lamps and supplemental turn signals | N/A | N/A | Std |
| Power trailer-tow, heated, manual folding, black; includes exterior courtesy lamps and turn signals (standard on crew cab models; included with Power Accessory and Power and Remote Entry Groups) | Std/Pkg | Std | N/A |
| Monotone paint | Std | Std | Std |
| Pickup box delete | Std | Std | Std |
| Tail lamps — LED (not available with SRW models) | Opt | Opt | Opt |
| Wheels — 3500 | |||
| 17- x 6-in. argent steel (DRW models only) | Std | N/A | N/A |
| 17- x 6-in. bright wheel covers and center cap (DRW models only; included with Chrome Appearance Group on Tradesman models) | Pkg | Std | N/A |
| 17- x 6-in. aluminum (DRW models only) | N/A | Opt | Std |
| 18-in. steel (SRW models only) | Std | N/A | N/A |
| 18-in. chrome-clad steel (SRW models only; optional on Tradesman; included with Chrome Appearance Group) | Opt/Pkg | Std | N/A |
| 18-in. polished aluminum (SRW models only) | Opt | Opt | Std |
| Wheels, 4500/5500 | |||
| 19.5- x 6-in. steel | Std | Std | N/A |
| 19.5- x 6-in. polished aluminum | Opt | Opt | Std |
| Black (4500/5500 models only) | Std | Std | Std |
| Body-color (3500 models only) | Opt | Opt | Opt |
| Variable/intermittent | Std | Std | Std |
| Windshield wipersRain-sensitive (packaged with Convenience Group) | N/A | N/A | Pkg |
| Interior Features | |||
| Air conditioning | Std | Std | Std |
| Air conditioningDual-zone automatic temperature control (included with Heated Seats and Wheel Group; crew cab only) | N/A | Pkg | Std |
| Assist handles — driver- and passenger-side (A-pillar-mounted) | Std | Std | Std |
| Auxiliary switches — five | Std | Std | Std |
| BezelCenter-stack, black | Std | N/A | N/A |
| Center-stack, color-keyed | N/A | Std | N/A |
| Center-stack, woodgrain insert | N/A | N/A | Std |
| ConsolesFull-size floor center (included with front bucket seats) | N/A | Pkg | Pkg |
| Overhead with universal garage door opener (included with Luxury Group) | N/A | Pkg | Std |
| Overhead with map lights | Pkg | Std | N/A |
| Door LocksManual (regular cab only) | Std | N/A | N/A |
| Power (included with Power Accessory and Power and Remote Entry Groups; standard on Tradesman crew cab model) | Std/Pkg | Std | Std |
| Floor CoveringHeavy-duty vinyl | Std | Opt | Opt |
| Carpet | Opt | Std | Std |
| Floor MatsFront, carpeted (regular cab; included with carpet on Tradesman models) | Pkg | Std | N/A |
| Front and rear, carpeted (crew cab; included with carpet on Tradesman models) | Pkg | Std | Std |
| Front, rubber (regular cab; requires carpet) | Opt | Opt | N/A |
| Front and rear, rubber (crew cab; requires carpet) | Opt | Opt | Opt |
| Passenger-side visor with mirror | Std | Std | N/A |
| Instrument Cluster3.5-in. display, tachometer (120-mph speedometer on 3500; 87-mph on 4500/5500 with EVIC display) | Std | Std | N/A |
| 7-in. driver information display (DID) (included with Luxury Group) | N/A | Pkg | Std |
| MirrorsDay/night manual | Std | Std | N/A |
| Auto-dimming rearview day/night, with camera display (packaged with ParkView Rear Backup Camera) | Pkg | Pkg | Pkg |
| Auto-dimming rearview day/night with Uconnect Phone (included with Convenience Group) | N/A | N/A | Pkg |
| Passenger-side visor with mirror | Std | Std | N/A |
| Illuminated visors for driver and passenger (included with Luxury Group) | N/A | Pkg | Std |
| PedalsPower adjustable (3500, 4500 and 5500; requires automatic transmission) | N/A | Opt | N/A |
| Power adjustable with memory (3500, 4500 and 5500; requires automatic transmission) | N/A | N/A | Opt |
| Power accessory delay | Std | Std | Std |
| Power Outlets115-volt auxiliary | N/A | Pkg | Std |
| 12-volt auxiliary, two | Std | Std | Std |
| Seat belts, front, shoulder height-adjustable | Std | Std | Std |
| SeatingHeated, driver and front-passenger; includes heated steering wheel (included with Heated Seats and Wheel Group) | N/A | Pkg | Std |
| 10-way power driver's seat | N/A | Pkg | N/A |
| 10-way power driver's seat with memory and six-way power passenger | N/A | N/A | Std |
| Front center-seat delete (packaged with Rear Interior Trim Delete Group) | Opt | Opt | N/A |
| Delete rear seat (crew cab models only) | Opt/Pkg | Opt/Pkg | N/A |
| Heated, second-row | N/A | N/A | Pkg |
| SeatsVinyl 40/20/40 split-bench front seat with folding center armrest/business console (crew cab models include folding rear bench seat trimmed in vinyl) | Std | N/A | N/A |
| Work-grade vinyl 40/20/40 split bench | Opt | Opt | N/A |
| Cloth-trimmed 40/20/40 split-bench front seat with folding center armrest/business console (crew cab models include folding rear bench seat trimmed in cloth) | Opt | Std | N/A |
| Premium cloth-trimmed 40/20/40 split-bench front seat, power 10-way driver seat, power lumbar adjuster, folding center armrest/business console with center-seat-cushion storage and 115-volt auxiliary power outlet (crew cab models include 60/40 split-folding rear bench seat trimmed in cloth) | N/A | Opt | N/A |
| Premium cloth-trimmed low-back bucket seats, power 10-way driver seat, power lumbar adjuster, fixed center console and 115-volt auxiliary power outlet (crew cab models include 60/40 split-folding rear bench seat trimmed in cloth) | N/A | Opt | N/A |
| Leather-trimmed ventilated and heated 40/20/40 split-bench front seats with power 10-way/memory for driver and power 6-six-way passenger seat, power lumbar adjuster, front center-seat-cushion storage and folding center armrest/business console, and 115-volt auxiliary power outlet (crew cab models include 60/40 split-folding rear bench seat trimmed in vinyl) | N/A | N/A | Std |
| Leather-trimmed low-back, ventilated and heated bucket seats; includes power 10-way driver and power six-way passenger seats, power lumbar adjuster, fixed center console, 115-volt auxiliary power outlet and heated second-row seats on crew cab models (crew cab models include 60/40 split-folding rear bench seat trimmed in vinyl) | N/A | N/A | Opt |
| Speed control | Std | Std | Std |
| Steering wheelsFour spoke, urethane | Std | Std | N/A |
| Heated (included with heated seats; included with Heated Seats and Wheel Group) | N/A | Pkg | Std |
| Leather-wrapped with remote audio control buttons (included with Luxury Group and Heated Seats and Wheel Group) | N/A | Pkg | Std |
| Tilt column | Std | Std | Std |
| StorageFront, behind-the-seat (regular cab only) | Std | Std | N/A |
| Front-seat center-cushion | N/A | Pkg | Std |
| Tip Start — included with automatic transmissions | Pkg | Pkg | Pkg |
| Turn signals — one-touch three-blink lane-change feature | Std | Std | Std |
| WindowsManual (regular cab only) | Std | N/A | N/A |
| Power, front and rear with driver's one-touch up/down (crew cab models only) | Std | Std | Std |
| Power, front with driver's one-touch down (regular cab only; included with Power Accessory Group and Power and Remote Entry Group) | Pkg | Std | N/A |
| Rear backlight, fixed | Std | Std | N/A |
| Rear backlight, power sliding (crew cab models only; included with Luxury Group) | N/A | Pkg | Std |
| Rear backlight, sliding | Opt | Opt | N/A |
| Rear defrost (available with fixed rear or power sliding rear window; requires Power Accessory Group on Tradesman models) | Opt | Opt | Opt |
| Uconnect Multimedia | |||
| Integrated Voice Command with Bluetooth — handsfree calling with Address Sync, Bluetooth | Pkg | Pkg | Pkg |
| Radio controls — steering wheel-mounted audio controls (included with leather-wrapped steering wheel, Luxury Group and Heated Seats and Wheel Group) | N/A | Pkg | Std |
| Single-disc remote CD player | Opt | Opt | Opt |
| SiriusXM Guardian included with 8.4-in. radios | N/A | Pkg | Pkg |
| SiriusXM Radio | Opt | Std | Std |
| SiriusXM Travel Link and Traffic Plus - included with 8.4-in. radios | N/A | Pkg | Pkg |
| 2.5-amp charging USB port | Pkg | Pkg | Std |
| Media hub (included with Uconnect 3.0 and 5.0) | Std | Std | N/A |
| 1.5-amp fully functional USB port | Std | Std | Std |
| Auxiliary input jack for mobile devices | Std | Std | Std |
| Media hub (included with Uconnect 8.4-in. radios) | N/A | Pkg | Std |
| Speaker SystemsPremium (available with Uconnect 8.4-in. radios; not available with Upfitter Electronic Interface Module) | N/A | Opt | Opt |
| Six speakers, standard on crew cab Tradesman model | N/A | Std | Std |
| Two speakers, standard on regular cab | Std | N/A | N/A |
| Radio 3.0 — AM/FM with media hub (USB, auxiliary jack) | Std | Std | N/A |
| Uconnect 3.0 Radio — AM/FM/integrated Voice Command with Bluetooth with media hub (USB, auxiliary jack) | Opt | Opt | N/A |
| Uconnect 3.0 with 5.0 — AM/FM, media hub (USB, auxiliary jack), global positioning system, Integrated Voice Command with Bluetooth and SiriusXM Radio | Opt | Opt | N/A |
| Uconnect 4C with 8.4-in. display radio — AM/FM, media hub (USB, auxiliary jack), GPS, Integrated Voice Command with Bluetooth, SiriusXM Radio and Rcall/ecall (required for Heated Seats and Wheel Group) | N/A | Opt | Std |
| Uconnect 4C NAV with 8.4-in. display radio — AM/FM, media hub (USB, auxiliary jack), GPS navigation, Integrated Voice Command with Bluetooth, SiriusXM Radio, Rcall/ecall and HD radio (required for Heated Seats and Wheel Group) | N/A | Opt | Opt |
| Safety & Security | |||
| Two, multistage front | Std | Std | Std |
| Air BagsDriver's only | Opt | Opt | N/A |
| Brakes — power-assisted four-wheel antilock disc | Std | Std | Std |
| DOT-certified Roadside Safety Kit — includes DOT fire extinguisher, three reflecting triangles, two red vinyl flags and spare fuses | Opt | Opt | Opt |
| Electronic stability control (ESC) system | Std | Std | Std |
| ParkSense front and rear park assist system (requires Chrome Appearance Group and fog lamps on Tradesman or fog lamps on SLT) | Opt | Opt | Opt |
| ParkSense rear park assist system | Opt | Opt | Opt |
| Red seat belts — regular cab models only (not available on 10,000‑lb. GVWR 3500 SRW models) | Opt | Opt | N/A |
| Remote Keyless Entry — controls for power door locks, illuminated entry System and panic alarm; includes two transmitters (included with Power and Remote Entry Group) | Opt/Pkg | Std | Std |
| Remote Start System — requires automatic transmission; included with available automatic transmission on Laramie | N/A | Opt | Pkg |
| Security alarm | N/A | Opt | Std |
| Selective tire-pressure monitoring display (available on 3500 models over 10,000‑lb. GVWR only) | Opt | Opt | Opt |
| Sentry Key theft deterrent system — engine immobilizer | Std | Std | Std |
| Tire-pressure monitoring (packaged with 10,000‑lb. GVWR 3500 SRW models) | Pkg | Pkg | Pkg |
| Trailer brake controller — fully integrated electronic | Opt | Opt | Opt |
| Packages/Equipment Groups | |||
Ambulance Prep Group220-amp alternator, voltage monitoring auto idle-up system and upfitter electronic interface module | Opt | Opt | Opt |
Chrome Appearance Groupchrome front bumper and grille surround and chrome wheel covers on 3500 models; chrome grille and chrome front bumper on 4500/5500 models | Opt | N/A | N/A |
Cold Weather Groupengine block heater and winter front grille cover (requires diesel engine) | Opt | Opt | Opt |
Convenience Groupauto-dimming rearview mirror, rain-sensing wipers, automatic high-beam headlamp control, remote proximity keyless entry and Keyless Enter 'n Go (not available with manual transmission) | N/A | N/A | Opt |
Emergency/Fire/Rescue Special Emissions Packagedual alternators rated at 440 amps and special emissions emergency vehicle (requires 6.7-liter Cummins Turbo Diesel; requires Ambulance Prep Group) | Fleet | Fleet | Fleet |
Heated Seats and Wheel Groupheated cloth front seats and heated leather-wrapped steering wheel | N/A | Opt | N/A |
Heavy-Duty Front Suspension Groupincluded with Heavy-Duty Snow Plow Prep Group; 4500/5500 models only) | Opt/Pkg | Opt/Pkg | Opt/Pkg |
Heavy-Duty Snow Plow Prep Group220-amp alternator, transfer case skid plate (3500 models require 4x4), and heavy-duty front suspension (4500, 5500 models only) | Opt | Opt | Opt |
Luxury Groupsun visors with illuminated vanity mirrors, glove box lamp, underhood lamp, rear dome lamp with on/off switch, 7.4-in. EVIC, leather-wrapped steering wheel with audio controls, overhead console, rear power sliding window (crew cab models) and universal garage door opener (requires Uconnect 5.0, 8.4A or 8.4 NAV) | N/A | Opt | N/A |
Max Tow Packageunderbody thermal protection; 4.88 axle ratio and transmission software calibration on 4500/5500 models; includes dual transmission oil cooler, underbody thermal protection, 4.10 axle ratio, transmission software calibration and aluminum rear differential cover on 3500 models (requires diesel engine with automatic transmission and trailer brake controller; not available on 3500 SRW models) | Opt | Opt | Opt |
Payload Upgrade Package19,000-lb. GVWR with 60-in. CA, 19,500-lb. GVWR with 84-in., 108-in. and 120-in. CA, 4.88 rear axle ratio (5500 with 6.4-liter only) | Opt | Opt | Opt |
Power Accessory Grouppower windows, premium vinyl door trim, power door locks and power adjustable exterior trailer-tow mirrors with turn signal indicators (regular cab only) | Opt | N/A | N/A |
Power and Remote Entry Grouppower windows, premium vinyl door trim, power door locks, power adjustable exterior trailer-tow mirrors with turn signal indicators and remote keyless entry (regular cab only) | Opt | N/A | N/A |
Power Take Off Prep Grouphard-wire remote start, if equipped with AISIN transmission, and includes split shaft capability, if equipped with diesel engine | Opt | Opt | Opt |
Power Take Off Prep Group (left side)hard wire remote start, if equipped with AISIN transmission, and includes split shaft capability, if equipped with diesel engine | Opt | Opt | Opt |
Rear Interior Trim Delete Groupfront center seat delete, rear floor storage tray delete and cab back trim panel delete (regular cab models only) | Opt | Opt | N/A |
Rollback Carrier Groupvoltage monitoring auto idle-up system (5500 120-CA regular cab models only; requires 22-gallon mid-ship fuel tank, PTO prep and 220-amp alternator) | Opt | Opt | N/A |
| Single Rear Wheel Group (standard on 3500 10,000‑lb. GVWR models; available on 3500 over 10,000‑lb. GVWR models; not available on 4500/5500 models) | Std/Opt | Std/Opt | Std/Opt |
- Guide covers 2018 Ram Commercial 3500, 4500 and 5500 Chassis Cab.
- A dash in the printed guide means not available and is recorded as NA.
- F means fleet-only option, as printed in the guide's legend.
- Several rows apply only to certain models (3500, 4500/5500), cab types or drivetrains, as noted in the labels.
What each trim adds
Equipment that becomes standard at each step up, compared with the next trim down in price. Packages and options aren't counted.
SLT (Reg/Crew)over Tradesman (Reg/Crew)+17 standard
- Badging: SLT
- Front, chrome (included with Chrome Appearance Group)
- Chrome surround, black insert (included with Chrome Appearance Group)
- Power trailer-tow, heated, manual folding, black; includes exterior courtesy lamps and turn signals (standard on crew cab models; included with Power Accessory and Power and Remote Entry Groups)
- 17- x 6-in. bright wheel covers and center cap (DRW models only; included with Chrome Appearance Group on Tradesman models)
- 18-in. chrome-clad steel (SRW models only; optional on Tradesman; included with Chrome Appearance Group)
- Bezel: Center-stack, color-keyed
- Consoles: Overhead with map lights
- Power (included with Power Accessory and Power and Remote Entry Groups; standard on Tradesman crew cab model)
- Floor Covering: Carpet
- Front, carpeted (regular cab; included with carpet on Tradesman models)
- Front and rear, carpeted (crew cab; included with carpet on Tradesman models)
- Cloth-trimmed 40/20/40 split-bench front seat with folding center armrest/business console (crew cab models include folding rear bench seat trimmed in cloth)
- Power, front with driver's one-touch down (regular cab only; included with Power Accessory Group and Power and Remote Entry Group)
- SiriusXM Radio
- Six speakers, standard on crew cab Tradesman model
- Remote Keyless Entry — controls for power door locks, illuminated entry System and panic alarm; includes two transmitters (included with Power and Remote Entry Group)
Standard on every Chassis Cab trim (43)
- 6.4-liter HEMI V-8 (410 hp (SRW)/370 hp/429 lb.-ft.) 66RFE six-speed automatic (standard on 3500 models only)
- 180-amp, included with 6.4-liter HEMI V-8 and with Cummins Turbo Diesel engines
- Battery — 730-amp (1 per vehicle with gas engine; two per vehicle with diesel engine)
- Engine cooling — heavy-duty
- Single 52-gallon, rear-mounted (not available on 3500 SRW 10,000-lb. GVWR models)
- Shock Absorbers: Front, heavy-duty
- Shock Absorbers: Rear, heavy-duty
- Stabilizer bar — front
- Steering — power, recirculating ball
- Front: Axle disconnect with 4x4
- Rear: Anti-spin differential
- Rear: 3.73 ratio (diesel models only)
- AAM 11.5-in. beam rear axle (SRW models only)
- AAM 11.5-in. beam rear axle (DRW models only)
- Front — 10.8-in.
- Rear: Anti-spin differential
- Dana 12.25-inch axle (12,000-lb. GAWR on 4500; 13,500-lb. GAWR on 5500)
- Front, headlamp filler, black (standard on 4500 and 5500 models; included with low-volume paint)
- Front, headlamp filler in body color (3500 only)
- Headlamps: Automatic
- Lamps — cab-clearance
- Monotone paint
- Pickup box delete
- LT235/80R17E BSW All-season (DRW models only)
- 225/70R19.5G BSW All-position (4x2 models only)
- Wheel well flares: Black (4500/5500 models only)
- Windshield wipers: Variable/intermittent
- Air conditioning
- Assist handles — driver- and passenger-side (A-pillar-mounted)
- Auxiliary switches — five
- Power accessory delay
- Power Outlets: 12-volt auxiliary, two
- Seat belts, front, shoulder height-adjustable
- Speed control
- Tilt column
- Turn signals — one-touch three-blink lane-change feature
- Power, front and rear with driver's one-touch up/down (crew cab models only)
- Media hub (included with Uconnect 3.0 and 5.0): 1.5-amp fully functional USB port
- Media hub (included with Uconnect 3.0 and 5.0): Auxiliary input jack for mobile devices
- Air Bags: Two, multistage front
- Brakes — power-assisted four-wheel antilock disc
- Electronic stability control (ESC) system
- Sentry Key theft deterrent system — engine immobilizer
Source: 2018 Ram Commercial Chassis Cab Feature Availability, Stellantis North America. Equipment can change during the model year and some items arrive late; confirm on the window sticker.
No EPA fuel-economy rating. Heavy-duty pickups, chassis cabs and full-size vans above 8,500 lb gross vehicle weight are exempt from EPA labeling, so there is no official MPG figure for the Chassis Cab.
2018 Ram Chassis Cab wheels & tires
The spec sheet doesn't list tire sizes for this model year; here is what the owner's manual says.
- Cold tire pressure
- Not a single number: the owner's manual refers to the tire and loading placard (driver's side door opening), which lists the pressures for your exact tire size and load.
- Spare
- Manual covers compact spare, full-size spare (matching or not) and tire service kit by equipment; a non-matching spare has no pressure sensor.
- Lug nut torque
- 130 ft-lb (176 N·m) (Cone type), M14 x 1.50 thread, 22 mm socket
- Pressure monitor
- A tire pressure monitoring system warns when a tire is low.
Sizes and pressures vary by trim, wheel package and load: check the placard on your vehicle and the tire sidewall. Sizes from the manufacturer's specification sheet (2018 Ram Commercial 3500 Chassis Cab Specifications, 2018 Ram Commercial 4500/5500 Chassis Cab Specifications). Pressure and spare notes from the owner's manual.
2018 Ram Chassis Cab maintenance schedule
The factory schedule for normal driving. Oil changes follow the oil-change indicator on most models; severe use (towing, dusty roads, lots of idling) shortens some intervals.
A dot means the service is due at that mileage.
Additional Inspections
- Inspect front suspension, tie rod ends, and replace if necessary
- Inspect the front and rear axle surfacesIf gear oil leakage is suspected, check the fluid level. If using your vehicle for police, taxi, fleet, off-road or frequent trailer towing, change axle fluid.
- Inspect the brake linings, parking brake function
| Service | 20k | 30k | 40k | 50k | 60k | 70k | 80k | 90k | 100k | 110k | 120k | 130k | 140k | 150k |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Additional Inspections | ||||||||||||||
| Inspect the CV/Universal joints | ||||||||||||||
| Inspect front suspension, tie rod ends, and replace if necessary | ||||||||||||||
| Inspect the front and rear axle surfacesIf gear oil leakage is suspected, check the fluid level. If using your vehicle for police, taxi, fleet, off-road or frequent trailer towing, change axle fluid. | ||||||||||||||
| Inspect the brake linings, parking brake function | ||||||||||||||
| Additional Maintenance | ||||||||||||||
| Replace engine air filter | ||||||||||||||
| Replace spark plugs | ||||||||||||||
| Flush and replace the engine coolant at 10 years or 150,000 miles (240,000 km) whichever comes first | ||||||||||||||
| Change the automatic transmission fluid (AS66RC Transmission Only) | ||||||||||||||
| Change the automatic transmission fluid and sump filter (AS66RC Transmission Only) | ||||||||||||||
| Change the automatic transmission fluid and filter(s) (66RFE Transmission Only), if using your vehicle for police, taxi, fleet, or frequent trailer towing | ||||||||||||||
| Change the automatic transmission fluid and filter(s) (66RFE transmission) | ||||||||||||||
| Inspect the transfer case fluid, change for any of the following: police, taxi, fleet, or frequent trailer towing | ||||||||||||||
| Change the transfer case fluid | ||||||||||||||
| Inspect and replace PCV valve if necessary | ||||||||||||||
At every oil change
- Change oil and filter
- Rotate the tires. Rotate at the first sign of irregular wear, even if it occurs before the oil indicator system turns on
- Inspect engine cooling system protection and hoses
- Inspect exhaust system
- Inspect engine air cleaner if using in dusty or off-road conditions
- Inspect battery and clean and tighten terminals as required
- Inspect automatic transmission fluid if equipped with dipstick
- Inspect brake pads, shoes, rotors, drums, hoses and park brake
- Inspect front end, and lubricate – If equipped with serviceable fittings
- Lube the front drive shaft fitting (4X4 models only)
2018 Ram Chassis Cab fluids & capacities
Oil, coolant, transmission and axle fluids with their capacities and specifications, wheel torque and fuel requirements, from the owner's manual.
Fluid capacities
| System | Applies to | Capacity |
|---|---|---|
| All engines | ||
| Fuel tank (approximate) | Standard rear tank | 52 gal197 L |
| Optional midship tank | 22 gal83 L | |
| Diesel exhaust fluid tank (approximate) | Chassis Cab | 9 gal34 L |
| 6.4L engine | ||
| Engine oil with filter | 7 qt6.6 L | |
| Cooling system | 16.6 qt15.7 L | |
| 6.7L diesel engine | ||
| Engine oil with filter | Cummins turbo diesel | 12 qt11.4 L |
| Cooling system | Cummins turbo diesel | 5.7 gal21.4 L |
Engine fluids
| Component | Fluid / grade | Mopar product |
|---|---|---|
| All engines | ||
| Engine coolant | Organic Additive Technology (OAT) 10-year/150,000-mile coolantMS.90032 | Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT |
| 6.4L engine | ||
| Engine oil | SAE 0W-40 full synthetic, API SN certifiedMS-12633 | Pennzoil Ultra 0W-40 or equivalent Mopar engine oil |
| Engine oil filter | — | Mopar Engine Oil Filters |
| Spark plugs | — | Mopar Spark Plugs |
| Fuel selection | 89 octane recommended, 87 octane acceptable, 0-15% ethanol | — |
| 6.7L diesel engine | ||
| Engine coolantCummins turbo diesel | Organic Additive Technology (OAT) 10-year/150,000-mile coolant | Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT |
| Engine oilCummins turbo diesel, above 0°F (-18°C) | SAE 15W-40, API CJ-4 required (Cummins CES 20081 also acceptable)MS-10902 | Mopar, Shell Rotella or Shell Rimula 15W-40 |
| Engine oilCummins turbo diesel, below 0°F (-18°C) | SAE 5W-40 synthetic, API CJ-4 requiredMS-10902 | Mopar, Shell Rotella or Shell Rimula 5W-40 synthetic |
| Engine oil filterCummins turbo diesel | — | Mopar Engine Oil Filters |
| Fuel filtersCummins turbo diesel | 3 micron rating required | Mopar Fuel Filter |
| Crankcase ventilation filterCummins turbo diesel | — | Mopar CCV Filter |
| Fuel selectionCummins turbo diesel | Ultra-low-sulfur diesel (15 ppm sulfur max), No. 2 diesel ASTM D975 Grade S15; biodiesel up to 5% (ASTM D975), up to 20% (ASTM D7467) only on models configured for B20 | — |
| Diesel exhaust fluidCummins turbo diesel | API-certified DEF meeting ISO 22241 | Mopar Diesel Exhaust Fluid |
Chassis fluids & lubricants
| Component | Fluid / grade | Mopar product |
|---|---|---|
| Automatic transmission6.4L engine with 66RFE transmission | ATF+4 automatic transmission fluid | Mopar ATF+4 |
| Automatic transmission6.4L engine with AS66RC transmission | Mopar ASRC automatic transmission fluid or equivalent | Mopar ASRC Automatic Transmission Fluid |
| Transfer case | BW44-44 transfer case fluid | Mopar BW44-44 Transfer Case Fluid |
| Front and rear axle fluid4500/5500 | GL-5 SAE 75W-90 syntheticMS-9763 | — |
| Brake master cylinder | DOT 3 and SAE J1703 (DOT 4 acceptable if DOT 3 unavailable) | Mopar DOT 3 |
| Power steering reservoir | Power steering fluid +4 or ATF+4 automatic transmission fluid | Mopar Power Steering Fluid +4, Mopar ATF+4 |
| Automatic transmission6.7L Cummins turbo diesel with AS69RC transmission (all Chassis Cab models) | Mopar ASRC automatic transmission fluid or equivalent | Mopar ASRC Automatic Transmission Fluid |
Fuel
| Engine | Minimum | Ethanol / biodiesel |
|---|---|---|
| 6.4L engine | 87 octane Regular unleaded (89 for optimum performance and fuel economy) | Up to 15% (E15) |
| 6.7L Cummins turbo diesel | Ultra-low-sulfur diesel | Up to B5 (ASTM D975); up to B20 (ASTM D7467) only if configured with B20 option |
Wheel lug nut torque
| Wheels | Torque |
|---|---|
| Cone typeThread M14 x 1.5022 mm socket | 130 ft‑lb (176 N·m) |
| Flanged typeThread M14 x 1.5022 mm socket | 129 ft‑lb (175 N·m) |
- Axle fluid row is listed for 4500/5500 models.
- Dual wheels are flat mounted and center piloted; lug nuts are a two-piece assembly.
- Retorque lug nuts after 25 miles (40 km).
- Diesel supplement lists 2500/3500 pickup fuel tanks and axle fluid too; only Chassis Cab rows were added.
Source: Owner's manual (PDF). Always confirm with the manual for your exact vehicle.
2018 Ram Chassis Cab recalls & safety
What the U.S. government's National Highway Traffic Safety Administration (NHTSA) has on file for the 2018 Ram Chassis Cab: 9 recall campaigns and 51 owner complaints. Fetched November 8, 2026.
NHTSA hasn't published 5-Star Safety Ratings for the 2018 Ram Chassis Cab.
Recalls (9)
Newest first. A campaign covers certain vehicles of this model year, not necessarily every one. To see which apply to a specific vehicle, and whether the fix has been done, enter its VIN at nhtsa.gov/recalls or ask a dealer; repairs are free of charge.
Service brakes, hydraulic: antilock/traction control/electronic limited slip: control unit/moduleNovember 27, 2024 · Campaign 24V896000
Chrysler (FCA US, LLC) is recalling certain 2017-2018 Ram 2500 Pickup, Ram 3500 Pickup, 3500 Cab Chassis, 4500 and 5500 Cab Chassis vehicles. The hydraulic control unit (HCU) may fail, which can cause the anti-lock brake (ABS), electronic stability control (ESC), and traction control systems to fail.
Risk: A loss of anti-lock brakes, electronic stability control, or traction control can increase the risk of a crash.
Fix: Dealers will replace the brake HCU, or replace the HCU motor, free of charge. Owner notification letters were mailed beginning January 9, 2025. Owners may contact FCA customer service at 1-800-853-1403. FCA's number for this recall is C4B.
Campaign 24V896000 on NHTSA.govWheels: lugs/nuts/bolts/studsMay 27, 2021 · Campaign 21V398000
Chrysler (FCA US, LLC) is recalling certain 2012-2021 RAM 3500, 3500 Cab Chassis, 4500 Cab Chassis, and 5500 Cab Chassis vehicles. Incorrect information in the Service and Owner's Manuals may cause the flanged lug nuts to be over-tightened, which could result in a broken wheel stud and possible wheel separation.
Risk: Wheel separation can cause a vehicle crash.
Fix: Dealers will update the torque specification in the owner's manual and other published service documents. Dealers will also inspect the vehicle's wheel studs, replacing them if necessary, free of charge. Owner notification letters were mailed on November 30, 2021.
Campaign 21V398000 on NHTSA.govExterior lighting: brake lightsMay 13, 2019 · Campaign 19V359000
Unruh Fire, Inc. (Unruh Fire) is recalling one 2018 Dodge 5500-based fire truck equipped with Whelen brake lights. Depending on the specific wiring of the vehicle, these brake lights may illuminate when the brake pedal has not been pressed.
Risk: If the brake lights incorrectly illuminate, it can confuse other drivers, possibly increasing the risk of a crash.
Fix: Unruh Fire has notified the owner and will provide replacement brake lights, free of charge. The recall began May 20, 2019. Owners may contact Unruh Fire customer service at 1-800-856-7080.
Campaign 19V359000 on NHTSA.govExterior lighting: brake lightsMarch 28, 2019 · Campaign 19V255000
Blanchat Mfg., Inc. (Blanchat) is recalling one 2018 B-27 Minuteman vehicle built on a RAM 5500 chassis and equipped with Whelen brake lights recalled under 18E-063. Depending on the specific wiring of the vehicle, these brake lights may illuminate when the brake pedal has not been pressed.
Risk: If the brake lights incorrectly illuminate, it can confuse other drivers, possibly increasing the risk of a crash.
Fix: Blanchat has notified the owner, and will replace the brake lights, free of charge. The recall began March 27, 2019. Owners may contact Blanchat customer service at 1-620-896-7145.
Campaign 19V255000 on NHTSA.govExterior lighting: brake lightsMarch 26, 2019 · Campaign 19V236000
Excellance, Inc. (Excellance) is recalling certain 2018 Ambulances and Emergency Vehicles built on Ford E-350, E-450, F-650, F-550 4x4, Chevrolet G4500, G4500 Diesel, C3500, G3500, Freightliner M2, International 4300, and Dodge 4500 chassis and equipped with Whelen brake lights. Depending on the specific wiring of the vehicle, these brake lights may illuminate when the brake pedal has not been pressed.
Risk: If the brake lights incorrectly illuminate, it can confuse other drivers, possibly increasing the risk of a crash.
Fix: Excellance has notified owners, instructing them to contact Whelen to have the brake lights replaced, free of charge. The recall began on March 21, 2019. Owners may contact Whelen customer service at 1-860-718-2331 or Execellance at 1-256-772-9321.
Campaign 19V236000 on NHTSA.govElectrical system: wiringMay 17, 2018 · Campaign 18V332000
Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles.
Risk: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.
Fix: Chrysler will notify owners, and dealers will inspect the software, and perform a software flash on the engine or powertrain control module, free of charge. The recall began June 4, 2018. Owners may contact Chrysler customer service at 1-800-853-1403.
Campaign 18V332000 on NHTSA.govShow 3 older recallsHide older recalls
Service brakes, hydraulic: foundation components: hoses, lines/piping, and fittingsMay 1, 2018 · Campaign 18V277000
Chrysler (FCA US LLC) is recalling certain 2018 RAM 4500 and 5500 cab chassis trucks. The primary and secondary brake hoses located between the brake master cylinder and the hydraulic control unit may have been manufactured without anti-corrosion plating on the ferrules, which can allow the ferrules to corrode.
Risk: If the ferrules corrode, the brake fluid may leak and cause a loss of braking, increasing the risk of a crash.
Fix: Chrysler will notify owners, and dealers will inspect the brake hoses and replace them if necessary, free of charge. The recall began June 19, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U41.
Campaign 18V277000 on NHTSA.govPower train: automatic transmissionFebruary 8, 2018 · Campaign 18V100000
Chrysler (FCA US LLC) is recalling certain 2017-2018 RAM 1500, 2500, 3500, 3500 Cab Chassis, 4500 Cab Chassis, and 5500 Cab Chassis vehicles, all equipped with a column shifter. Pushing the brake pedal for prolonged periods when the vehicle is running and in PARK may cause the Brake Transmission Shift Interlock (BTSI) pin to stick in the open position. With the pin in the open position, the transmission can be shifted out of PARK into any gear without pushing the brake pedal or having the key in the ignition.
Risk: Being able to shift the transmission without pushing the brake pedal and/or without a key in the ignition can increase the risk of an unintended vehicle rollaway that may result in personal injury or a crash.
Fix: Chrysler will notify owners and dealers will update the Body Control Module software. Dealers will also test the BTSI operation, replacing the solenoid as necessary. The recall began February 26, 2018. Owners may contact Chrysler customer service at 1-800-853-1403. Chrysler's number for this recall is U11.
Campaign 18V100000 on NHTSA.govEquipmentDecember 21, 2017 · Campaign 17V824000
Chrysler (FCA US LLC) is recalling various Dodge, Chrysler, and RAM vehicles equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers. A list of the affected trailer models is available at: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17V824-0103.pdf. These extinguishers may become clogged, preventing the extinguisher from discharging as expected or requiring excessive force to activate the extinguisher.
Risk: If the fire extinguisher does not function properly, it can increase the risk of injury in the event of a fire.
Fix: Chrysler will notify owners instructing them to contact Kidde for a replacement fire extinguisher, free of charge. The recall began February 14, 2018. Owners may contact Chrysler customer service at 1-800-853-1403 or Kidde customer service service toll-free at 1-855-262-3540, or online at www.kidde.com and click on…
Campaign 17V824000 on NHTSA.govOwner complaints by component
- Complaints
- 51
- Crashes
- 2
- Fires
- 0
- Injuries
- 0
- Service brakes35
- Hydraulic19
- Wheels6
- Power train5
- Vehicle speed control5
- Electrical system4
- Steering3
- Unknown or other3
Complaints are reports owners filed with NHTSA; they are not verified and a complaint can name more than one component. A high count reflects how many were sold as much as how often something fails.
Source: NHTSA public data (recalls, complaints and the New Car Assessment Program), covering Ram 3500 Cab Chassis, Ram 4500, Ram 5500. Check nhtsa.gov/recalls for the latest.
2018 Ram Chassis Cab owner's manuals & publications
The manufacturer's owner's manual, quick guides, radio manuals, supplements and warranty booklets for the 2018 model year.
Owner's manuals
Quick guides
Uconnect & radio
On Mopar.com
Manuals and guides are hosted by the manufacturer on vehicleinfo.mopar.com and open as PDFs. Mopar.com's owner site also has VIN-specific manuals and recall lookups.
Great Lakes owner notes
The 2018 Ram Chassis Cab against salt, snow and steep grades
Lake-effect squalls, roads soaked in brine, potholes that open with every thaw and long Appalachian grades: driving in the Great Lakes states asks a lot of tires, batteries and undersides. These notes take the 2018 Chassis Cab figures above and flag the ones that carry the most weight in Ohio.
The oil grade on a January morning
The 2018 Ram Chassis Cab fluids table lists SAE 0W-40 (6.4L) and SAE 15W-40 or 5W-40 by temperature (6.7L Cummins turbo diesel), with 7 qt (6.4L) and 12 qt (6.7L Cummins turbo diesel) per change. Lake-effect winters are full of short, cold trips: to work, to school, to the store and home again before the engine reaches temperature. That pattern is tough on oil, so let the oil-change indicator set the interval and never stretch it.
Battery checks before the cold
The schedule includes a battery inspection at each oil change, with the terminals cleaned and tightened as required. Do it before the first cold snap: corrosion at the terminals adds resistance exactly when a frozen engine needs the most current from the battery. A load test each fall is worth adding once the battery is a few winters old.
Drive systems for lake-effect snow
The 2018 lineup includes four-wheel drive. Power at both axles pays off when a band off Lake Erie buries the Snowbelt east of Cleveland, or on a steep, unplowed road out of a hollow in eastern Kentucky. It gets you moving; stopping on ice is still up to the tires.
Trailer duty in the schedule
The schedule lists axle fluid, automatic transmission fluid and transfer case fluid service for frequent trailer towing, starting at 20,000 miles. Whether it is a fishing boat headed for the Ohio River or a pop-up camper bound for the Smokies, the extra heat of towing ages these fluids faster, most of all on long July climbs.
Coolant through freeze and climb
Fluids table: OAT coolant (10-year/150,000-mile formula), 16.6 qt (6.4L) and 22.8 qt (6.7L Cummins turbo diesel). Scheduled replacement comes at 10 years or 150,000 miles. Stick to that chemistry, since mixing coolant types can shorten their protective life. On a used Chassis Cab from Ohio, ask whether the coolant was changed on time, and check the level in the overflow tank with the engine cold before you drive it.
Filters for dust and pollen
The schedule asks for more frequent air-filter attention in dusty conditions, beyond the normal replacement every 30,000 miles. Gravel roads up Appalachian hollows and coal-haul routes in West Virginia and eastern Kentucky qualify, so inspect the filter at each oil change if they are part of your week.
Each spec in these notes is pulled from the tables above. The commentary on salt, snow, potholes and grades is general guidance for the Great Lakes states; the owner's manual remains the authority.
2018 Ram Chassis Cab questions
How much oil does the 2018 Ram Chassis Cab take?
With a filter change: 6.4L engine, 7 qt / 6.6 L and 6.7L Cummins turbo diesel, 12 qt / 11.4 L. Capacities are from the owner's manual; check the dipstick or oil-life display after filling.
What kind of oil does the 2018 Ram Chassis Cab use?
6.4L engine: SAE 0W-40 full synthetic, API SN certified (MS-12633); 6.7L Cummins turbo diesel, above 0°F (-18°C): SAE 15W-40, API CJ-4 required (Cummins CES 20081 also acceptable) (MS-10902); and 6.7L Cummins turbo diesel, below 0°F (-18°C): SAE 5W-40 synthetic, API CJ-4 required (MS-10902).
When is the first scheduled maintenance on the 2018 Ram Chassis Cab?
At 20,000 miles: inspect front suspension, tie rod ends, and replace if necessary; inspect the front and rear axle surfaces. if gear oil leakage is suspected, check the fluid level. if using your vehicle for police, taxi, fleet, off-road or frequent trailer towing, change axle fluid; inspect the brake linings, parking brake function. Oil changes in between follow the oil-change indicator.
Where can I find the 2018 Ram Chassis Cab owner's manual?
The manufacturer publishes it free on Mopar.com as a PDF (linked in the manuals section above), along with quick guides, radio manuals and the warranty booklet.
What MPG does the 2018 Ram Chassis Cab get?
The EPA doesn't publish a fuel-economy rating for the Chassis Cab: heavy-duty pickups, chassis cabs and full-size vans above 8,500 pounds gross vehicle weight are exempt from fuel-economy labeling, so there is no official MPG figure to quote.
What changed on the 2018 Ram Chassis Cab?
Powertrain: Alternate left side requires AISIN joins the lineup; Powertrain no longer listed: Alternate left side requires Aisin automatic; Package no longer offered: Smoker’s Group; Paint: dropped Black, Black/Diesel Gray and Canyon Brown/Light Frost Beige.
Does the 2018 Ram Chassis Cab have recalls?
NHTSA lists 9 safety recall campaigns for the 2018 Ram Chassis Cab. The most recent: Service brakes, hydraulic: antilock/traction control/electronic limited slip (November 2024), Wheels: lugs/nuts/bolts/studs (May 2021), and Exterior lighting: brake lights (May 2019). NHTSA's data was last fetched November 8, 2026. Recalls are listed by model year, so a given vehicle may or may not be covered: enter its VIN at nhtsa.gov/recalls or ask a dealer to see which are open.
What are the most common safety complaints about the 2018 Ram Chassis Cab?
Owners have filed 51 complaints about the 2018 Ram Chassis Cab with NHTSA. The components named most often are service brakes (35), hydraulic (19), and wheels (6). 2 complaints involved a crash and 0 complaints a fire. Complaints are reports from owners that NHTSA does not verify, so treat them as a signal to look into, not a finding.
Specifications come from the manufacturer's spec comparison and its media-site specification sheets; maintenance schedules, fluids and publications come from Mopar's owner site and owner's manuals. Equipment and ratings vary by configuration; check the owner's manual or a dealer for a specific vehicle.