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.
- Schedule covers
- 150k miles
- Publications
- 16
2018 Ram Chassis Cab specs & features
Engines, gear ratios, suspension, brakes, dimensions and capacities as published in the manufacturer's 2018 specification sheets.
General information+−
| Vehicle Type | Chassis Cab: Regular Cab and Crew Cab |
| Assembly Plant | Saltillo Truck Assembly Plant, Coahuila, Mexico |
| EPA Vehicle Class | Large Pickup |
Engine: 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 |
Engine: 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) |
Engine: 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) |
Transmission: G56 — manual six-speed overdrive+−
| Availability | 6.7-liter diesel |
| Description | Synchronized in all gears |
| 1st | 5.94 |
| 2nd | 3.28 |
| 3rd | 1.98 |
| 4th | 1.31 |
| 5th | 1.0 |
| 6th | 0.74 |
| Reverse | 5.42 |
| Axle ratios | 3.42, 3.73, 4.10 |
| PTO | Left- or right-side with split-shaft capability |
Transmission: 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 |
| 1st | 3.23 |
| 2nd | 1.84 |
| 3rd | 1.41 |
| 4th | 1.00 |
| 5th | 0.82 |
| 6th | 0.63 |
| Reverse | 4.44 |
| Axle ratios | 5.7-liter: 4.10; 6.4-liter: 4.10 |
Transmission: 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 |
| 1st | 3.75 |
| 2nd | 2.0 |
| 3rd | 1.34 |
| 4th | 1.0 |
| 5th | 0.77 |
| 6th | 0.63 |
| Reverse | 3.54 |
| Axle ratios | 4.44 |
| PTO | Left- or right-side capability |
Transmission: AS69RC — automatic six-speed+−
| Availability | 6.7-liter diesel |
| Description | Three planetary gear sets, one overrunning clutch, full electronic control, electronically controlled converter clutch |
| 1st | 3.75 |
| 2nd | 2.0 |
| 3rd | 1.34 |
| 4th | 1.0 |
| 5th | 0.77 |
| 6th | 0.63 |
| Reverse | 3.54 |
| Axle ratios | 3.42, 3.73, 4.10 |
| PTO | Left- or right-side with split shaft capability |
Transfer cases: BW 44-46, BW 44-47+−
| 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 |
Suspension+−
| Front | Three-link with track bar, coil springs, stabilizer bar, twin-tube shock absorbers, solid axle |
| Rear | Hotchkiss leaf spring suspension, solid axle |
Brakes+−
| 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 bags+−
| Regular Cab | 2 |
| Crew Cab | 2 |
Steering+−
| Power-assist | Hydraulic assist |
Dimensions and capacities: Regular Cab 143.5-in. WB, 60-in. CA SRW+−
| 4x2 | 4x4 | |
|---|---|---|
| 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 |
(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.
Dimensions and capacities: Regular Cab 143.5-in. WB, 60-in. CA DRW+−
| 4x2 | 4x4 | |
|---|---|---|
| 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 |
(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.
Dimensions and capacities: Regular Cab 167.5-in. WB, 84-in. CA DRW+−
| 4x2 | 4x4 | |
|---|---|---|
| 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 |
(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.
Dimensions and capacities: Crew Cab 172.4-in. WB, 60-in. CA DRW+−
| 4x2 | 4x4 | |
|---|---|---|
| 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.
Accommodations+−
| 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 | N/A | 39.9 (1,013.5) |
| Rear – Legroom | N/A | 40.3 (1,023.3) |
| Rear – Shoulder Room | N/A | 65.7 (1,668.8) |
| Rear – Hip Room | N/A | 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) | N/A | 61.1 (1.7) |
Source: 2018 Ram Commercial 3500 Chassis Cab Specifications (Stellantis media site).
General information+−
| 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 |
Engine: 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 |
Engine: 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) |
Engine: 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) |
Transmission: G56 — manual six-speed overdrive+−
| Availability | 6.7-liter diesel |
| Description | Synchronized in all gears |
| 1st | 5.94 |
| 2nd | 3.28 |
| 3rd | 1.98 |
| 4th | 1.31 |
| 5th | 1.0 |
| 6th | 0.74 |
| Reverse | 5.42 |
| Axle ratios | 4500: 4.10, 4.44; 5500: 4.10, 4.44 |
| PTO | Left- or right-side with split shaft capability |
Transmission: 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 |
| 1st | 3.75 |
| 2nd | 2.0 |
| 3rd | 1.34 |
| 4th | 1.0 |
| 5th | 0.77 |
| 6th | 0.63 |
| Reverse | 3.54 |
| Axle ratios | 4500: 4.44, 4.88; 5500: 4.88 |
| PTO | Left- or right-side capability |
Transmission: AS69RC — automatic six-speed+−
| Availability | 6.7-liter diesel |
| Description | Three planetary gear-sets, one overrunning clutch, full electronic control, electronically controlled converter clutch |
| 1st | 3.75 |
| 2nd | 2.0 |
| 3rd | 1.34 |
| 4th | 1.0 |
| 5th | 0.77 |
| 6th | 0.63 |
| Reverse | 3.54 |
| Axle ratios | 4500: 4.10, 4.44; 5500: 4.10, 4.44 and 4.88 |
| PTO | Left- or right-side with split shaft capability |
Transfer cases: BW 44-46, BW 44-47+−
| 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 |
Suspension+−
| Front | Five-link suspension |
| Rear | Hotchkiss leaf spring suspension, solid axle |
Brakes+−
| 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 bags+−
| Regular Cab | 2 |
| Crew Cab | 2 |
Steering+−
| Power-assist | Hydraulic assist |
Dimensions and capacities: Regular Cab 144.5-in. WB, 60-in. CA DRW+−
| 4x2 | 4x4 | |
|---|---|---|
| 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 |
(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.
Dimensions and capacities: Regular Cab 168.5-in. WB, 84-in. CA DRW+−
| 4x2 | 4x4 | |
|---|---|---|
| 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 |
(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.
Dimensions and capacities: Regular Cab 192.5-in. WB, 108-in. CA DRW+−
| 4x2 | 4x4 | |
|---|---|---|
| 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 |
(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.
Dimensions and capacities: Regular Cab 204.5-in. WB, 120-in. CA DRW+−
| 4x2 | 4x4 | |
|---|---|---|
| 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 |
(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.
Dimensions and capacities: Crew Cab 173.4-in. WB, 60-in. CA DRW+−
| 4x2 | 4x4 | |
|---|---|---|
| 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 |
(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.
Dimensions and capacities: Crew Cab 197.4-in. WB, 84-in. CA DRW+−
| 4x2 | 4x4 | |
|---|---|---|
| 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.
Accommodations+−
| 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 | N/A | 39.9 (1,013.5) |
| Rear – Legroom | N/A | 40.3 (1,023.3) |
| Rear – Shoulder Room | N/A | 65.7 (1,668.8) |
| Rear – Hip Room | N/A | 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) | N/A | 61.1 (1.7) |
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. ✓ Standard OptionalPkg Part of a package— Not availableFleet Fleet-only option
| Feature | TradesmanReg/Crew | SLTReg/Crew | LaramieCrew |
|---|---|---|---|
| Mechanical Features | |||
| Two extra base keys (not available with Power and Remote Entry Group or Remote Keyless Entry) | — | — | |
| Transfer CasesManual shift, part-time (4x4 only) | ✓ | ✓ | — |
| Electric shift, part-time (4x4 only) | ✓ | ||
| Exterior Features | |||
| BadgingSLT | — | ✓ | — |
| Laramie | — | — | ✓ |
| BumperFront, black | ✓ | — | — |
| Front, chrome (included with Chrome Appearance Group) | Pkg | ✓ | ✓ |
| Tubular side steps in chromeBlack (regular cab only) | — | ||
| Fog lamps (available with Chrome Appearance Group on Tradesman and as a single option for SLT models) | Pkg | ✓ | |
| GrillesBlack insert and surround | ✓ | — | — |
| Chrome surround, black insert (included with Chrome Appearance Group) | Pkg | ✓ | — |
| Chrome surround, chrome insert | — | — | ✓ |
| HeadlampsHalogen — quad-lens | ✓ | ✓ | — |
| Halogen — bi-functional projector | — | — | ✓ |
| Key-alike Feature — allows a single key to start multiple trucks | — | ||
| MirrorsFolding trailer-tow, manual, black (regular cab only) | ✓ | — | — |
| Power multifunction trailer-tow, heated, manual folding, chrome; includes position memory, exterior courtesy lamps and supplemental turn signals | — | — | ✓ |
| 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) | P/S | ✓ | — |
| Wheels — 3500 | |||
| 17- x 6-in. argent steel (DRW models only) | ✓ | — | — |
| 17- x 6-in. bright wheel covers and center cap (DRW models only; included with Chrome Appearance Group on Tradesman models) | Pkg | ✓ | — |
| 17- x 6-in. aluminum (DRW models only) | — | ✓ | |
| 18-in. steel (SRW models only) | ✓ | — | — |
| 18-in. chrome-clad steel (SRW models only; optional on Tradesman; included with Chrome Appearance Group) | O/P | ✓ | — |
| 18-in. polished aluminum (SRW models only) | ✓ | ||
| Wheels, 4500/5500 | |||
| 19.5- x 6-in. steel | ✓ | ✓ | — |
| 19.5- x 6-in. polished aluminum | ✓ | ||
| Windshield wipersRain-sensitive (packaged with Convenience Group) | — | — | Pkg |
| Interior Features | |||
| Air conditioningDual-zone automatic temperature control (included with Heated Seats and Wheel Group; crew cab only) | — | Pkg | ✓ |
| BezelCenter-stack, black | ✓ | — | — |
| Center-stack, color-keyed | — | ✓ | — |
| Center-stack, woodgrain insert | — | — | ✓ |
| ConsolesFull-size floor center (included with front bucket seats) | — | Pkg | Pkg |
| Overhead with universal garage door opener (included with Luxury Group) | — | Pkg | ✓ |
| Overhead with map lights | Pkg | ✓ | — |
| Door LocksManual (regular cab only) | ✓ | — | — |
| Power (included with Power Accessory and Power and Remote Entry Groups; standard on Tradesman crew cab model) | P/S | ✓ | ✓ |
| Floor CoveringHeavy-duty vinyl | ✓ | ||
| Carpet | ✓ | ✓ | |
| Floor MatsFront, carpeted (regular cab; included with carpet on Tradesman models) | Pkg | ✓ | — |
| Front and rear, carpeted (crew cab; included with carpet on Tradesman models) | Pkg | ✓ | ✓ |
| Front, rubber (regular cab; requires carpet) | — | ||
| Passenger-side visor with mirror | ✓ | ✓ | — |
| Instrument Cluster3.5-in. display, tachometer (120-mph speedometer on 3500; 87-mph on 4500/5500 with EVIC display) | ✓ | ✓ | — |
| 7-in. driver information display (DID) (included with Luxury Group) | — | Pkg | ✓ |
| MirrorsDay/night manual | ✓ | ✓ | — |
| Auto-dimming rearview day/night with Uconnect Phone (included with Convenience Group) | — | — | Pkg |
| Passenger-side visor with mirror | ✓ | ✓ | — |
| Illuminated visors for driver and passenger (included with Luxury Group) | — | Pkg | ✓ |
| PedalsPower adjustable (3500, 4500 and 5500; requires automatic transmission) | — | — | |
| Power adjustable with memory (3500, 4500 and 5500; requires automatic transmission) | — | — | |
| Power Outlets115-volt auxiliary | — | Pkg | ✓ |
| SeatingHeated, driver and front-passenger; includes heated steering wheel (included with Heated Seats and Wheel Group) | — | Pkg | ✓ |
| 10-way power driver's seat | — | Pkg | — |
| 10-way power driver's seat with memory and six-way power passenger | — | — | ✓ |
| Front center-seat delete (packaged with Rear Interior Trim Delete Group) | — | ||
| Delete rear seat (crew cab models only) | O/P | O/P | — |
| Heated, second-row | — | — | 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) | ✓ | — | — |
| Work-grade vinyl 40/20/40 split bench | — | ||
| 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) | ✓ | — | |
| 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) | — | — | |
| 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) | — | — | |
| 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) | — | — | ✓ |
| 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) | — | — | |
| Steering wheelsFour spoke, urethane | ✓ | ✓ | — |
| Heated (included with heated seats; included with Heated Seats and Wheel Group) | — | Pkg | ✓ |
| Leather-wrapped with remote audio control buttons (included with Luxury Group and Heated Seats and Wheel Group) | — | Pkg | ✓ |
| StorageFront, behind-the-seat (regular cab only) | ✓ | ✓ | — |
| Front-seat center-cushion | — | Pkg | ✓ |
| WindowsManual (regular cab only) | ✓ | — | — |
| Power, front with driver's one-touch down (regular cab only; included with Power Accessory Group and Power and Remote Entry Group) | Pkg | ✓ | — |
| Rear backlight, fixed | ✓ | ✓ | — |
| Rear backlight, power sliding (crew cab models only; included with Luxury Group) | — | Pkg | ✓ |
| Rear backlight, sliding | — | ||
| Uconnect Multimedia | |||
| Radio controls — steering wheel-mounted audio controls (included with leather-wrapped steering wheel, Luxury Group and Heated Seats and Wheel Group) | — | Pkg | ✓ |
| SiriusXM Guardian included with 8.4-in. radios | — | Pkg | Pkg |
| SiriusXM Radio | ✓ | ✓ | |
| SiriusXM Travel Link and Traffic Plus - included with 8.4-in. radios | — | Pkg | Pkg |
| 2.5-amp charging USB port | Pkg | Pkg | ✓ |
| Media hub (included with Uconnect 3.0 and 5.0) | ✓ | ✓ | — |
| Media hub (included with Uconnect 8.4-in. radios) | — | Pkg | ✓ |
| Speaker SystemsPremium (available with Uconnect 8.4-in. radios; not available with Upfitter Electronic Interface Module) | — | ||
| Six speakers, standard on crew cab Tradesman model | — | ✓ | ✓ |
| Two speakers, standard on regular cab | ✓ | — | — |
| Radio 3.0 — AM/FM with media hub (USB, auxiliary jack) | ✓ | ✓ | — |
| Uconnect 3.0 Radio — AM/FM/integrated Voice Command with Bluetooth with media hub (USB, auxiliary jack) | — | ||
| Uconnect 3.0 with 5.0 — AM/FM, media hub (USB, auxiliary jack), global positioning system, Integrated Voice Command with Bluetooth and SiriusXM Radio | — | ||
| 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) | — | ✓ | |
| 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) | — | ||
| Safety & Security | |||
| Air BagsDriver's only | — | ||
| Red seat belts — regular cab models only (not available on 10,000-lb. GVWR 3500 SRW models) | — | ||
| Remote Keyless Entry — controls for power door locks, illuminated entry System and panic alarm; includes two transmitters (included with Power and Remote Entry Group) | P/O | ✓ | ✓ |
| Remote Start System — requires automatic transmission; included with available automatic transmission on Laramie | — | Pkg | |
| Security alarm | — | ✓ | |
| Packages/Equipment Groups | |||
| 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 | — | — | |
| 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) | — | — | |
| Heated Seats and Wheel Groupheated cloth front seats and heated leather-wrapped steering wheel | — | — | |
| 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) | — | — | |
| 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) | — | — | |
| 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) | — | — | |
| Rear Interior Trim Delete Groupfront center seat delete, rear floor storage tray delete and cab back trim panel delete (regular cab models only) | — | ||
| 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) | — | ||
- 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.
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. Engines: see schedule title.
| 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 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. | ||||||||||||||
| 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 Interval As Indicated By Oil Change Indicator System
- 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 | US | Metric |
|---|---|---|---|
| Fuel tank (approximate) | Standard rear tank | 52 gal | 197 L |
| Optional midship tank | 22 gal | 83 L | |
| Engine oil with filter | 6.4L engine | 7 qt | 6.6 L |
| Cooling system | 6.4L engine | 16.6 qt | 15.7 L |
| Diesel exhaust fluid tank (approximate) | Chassis Cab | 9 gal | 34 L |
| Engine oil with filter | 6.7L Cummins turbo diesel | 12 qt | 11.4 L |
| Cooling system | 6.7L Cummins turbo diesel | 5.7 gal | 21.4 L |
Engine fluids
| Component | Fluid / grade | Standard | Mopar product |
|---|---|---|---|
| Engine coolant | Organic Additive Technology (OAT) 10-year/150,000-mile coolant | MS.90032 | Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT |
| Engine oil (6.4L engine) | SAE 0W-40 full synthetic, API SN certified | MS-12633 | Pennzoil Ultra 0W-40 or equivalent Mopar engine oil |
| Engine oil filter (6.4L engine) | — | — | Mopar Engine Oil Filters |
| Spark plugs (6.4L engine) | — | — | Mopar Spark Plugs |
| Fuel selection (6.4L engine) | 89 octane recommended, 87 octane acceptable, 0-15% ethanol | — | — |
| Engine coolant (6.7L Cummins turbo diesel) | Organic Additive Technology (OAT) 10-year/150,000-mile coolant | — | Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT |
| Engine oil (6.7L Cummins 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 oil (6.7L Cummins turbo diesel, below 0°F (-18°C)) | SAE 5W-40 synthetic, API CJ-4 required | MS-10902 | Mopar, Shell Rotella or Shell Rimula 5W-40 synthetic |
| Engine oil filter (6.7L Cummins turbo diesel) | — | — | Mopar Engine Oil Filters |
| Fuel filters (6.7L Cummins turbo diesel) | 3 micron rating required | — | Mopar Fuel Filter |
| Crankcase ventilation filter (6.7L Cummins turbo diesel) | — | — | Mopar CCV Filter |
| Fuel selection (6.7L Cummins 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 | ASTM D975 Grade S15 | — |
| Diesel exhaust fluid (6.7L Cummins turbo diesel) | API-certified DEF meeting ISO 22241 | ISO 22241 | Mopar Diesel Exhaust Fluid |
Chassis fluids & lubricants
| Component | Fluid / grade | Standard | Mopar product |
|---|---|---|---|
| Automatic transmission (6.4L engine with 66RFE transmission) | ATF+4 automatic transmission fluid | — | Mopar ATF+4 |
| Automatic transmission (6.4L 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 fluid (4500/5500) | GL-5 SAE 75W-90 synthetic | MS-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 transmission (6.7L 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 | Thread | Socket |
|---|---|---|---|
| Cone type | 130 ft-lb (176 N·m) | M14 x 1.50 | 22 mm |
| Flanged type | 129 ft-lb (175 N·m) | M14 x 1.50 | 22 mm |
- 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 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
Warranty
- 4500/5500 Diesel WarrantyWarranty booklet (PDF)
- 3500 Diesel WarrantyWarranty booklet (PDF)
- 3500 Gas WarrantyWarranty booklet (PDF)
- 4500/5500 California Emissions WarrantyCalifornia emissions warranty (PDF)
- 4500/5500 Gas WarrantyWarranty booklet (PDF)
- 3500 California Emissions WarrantyCalifornia emissions warranty (PDF)
On Mopar.com
- Owner's manual on Mopar.com
- Maintenance schedule on Mopar.com
- Warranty information on Mopar.com
- How-to videos 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.
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.
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.