Ram 3500 · Model year 2021
2021 Ram 3500 specs, maintenance & manuals
Owner and shopper reference for the 2021 Ram 3500, built from Stellantis and Mopar data: the factory spec sheet, the maintenance schedule, fluid capacities and 14 manufacturer publications, plus a tow rating of up to 37,100 lb.
- Max towing
- 37,100 lb
- Schedule covers
- 150k miles
- Publications
- 14
2021 Ram 3500 specs & features
Engines, gear ratios, suspension, brakes, dimensions and capacities as published in the manufacturer's 2021 specification sheet.
General information+−
| Vehicle Type | Regular Cab, Crew Cab and Mega Cab: 4x2, 4x4 |
| Assembly Plant | Saltillo Truck Assembly Plant, Coahuila, Mexico |
| EPA Vehicle Class | Standard Pickup |
Body/chassis+−
| 4x2 | 4x4 | |
|---|---|---|
| Layout | Longitudinal, front engine | Longitudinal, front engine, transfer case |
| Construction | Ladder-type frame, steel cab, double-wall steel pickup box | Ladder-type frame, steel cab, double-wall steel pickup box |
Engine: 6.4-liter HEMI® V-8+−
| Type and Description | 90-degree gasoline V-8 with variable cam timing |
| 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 deactivating and eight hydraulic lifters, all 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 | 10.0:1 |
| Power | 410 hp (306 Kw) @ 5,600 RPM |
| Torque | 429 lb.-ft. (582 N•M) at 4,000 RPM |
| Maximum Engine Speed | 5,800 RPM limited |
| Fuel Requirement | Unleaded regular, 87 octane |
| Oil Capacity | 7.0 quarts (6.6 liters) |
| Coolant Capacity | 16.6 quarts (15.75 liters) |
| Emission Control | Three-way catalytic converters, heated oxygen sensors, cooled electronic exhaust-gas recirculation (EGR) and individual cylinder fuel control |
Engine: 6.7-liter Cummins Turbo Diesel I-6 (2500/3500 Standard Output)+−
| Type and Description | Inline six cylinder, turbocharged, intercooled diesel |
| 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, hydraulic lifters |
| Fuel Injection | Electronic high-pressure common rail |
| Construction | Compacted graphite iron (CGI) block cast-iron head |
| Compression Ratio | 19.0:1 |
| Power | 370 hp (276 Kw) @ 2,800 RPM (68RFE automatic transmission) |
| Torque | 850 lb.-ft. (1,152 N•M) @ 1,700 RPM |
| Maximum High-Idle 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 (22.50 liters) |
| Emission Controls | Selective catalytic reduction (SCR) |
Engine: 6.7-liter Cummins Turbo Diesel I-6 (3500 High Output)+−
| Type And Description | Inline six cylinder, turbocharged, intercooled diesel |
| 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, hydraulic lifters |
| Fuel Injection | Electronic high-pressure common rail |
| Construction | Compacted graphite iron (CGI) block cast-iron head |
| Compression Ratio | 16.2:1 |
| Power | 420 hp (313 Kw) @ 2,800 RPM (Aisin automatic transmission) |
| Torque | 1,075 lb.-ft. (1,458 N•M) @ 1,800 RPM |
| Maximum High-Idle 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 (22.50 liters) |
| Emission Controls | Selective catalytic reduction (SCR) |
Transmission: Aisin AS69RC — automatic six-speed (3500 High Output)+−
| Availability | 6.7-liter diesel high output |
| Description | Three planetary gear sets, full electronic control, electronically controlled converter clutch |
| Gear Ratios | — |
| 1st | 3.75 |
| 2nd | 2.0 |
| 3rd | 1.34 |
| 4th | 1.0 |
| 5th | 0.77 |
| 6th | 0.63 |
| Reverse | 3.54 |
| Axle Ratios | 3.73 (SRW and DRW), 4.10 (DRW only) |
Transmission: ZF 8HP75 — automatic eight-speed+−
| Availability | 6.4-liter HEMI V-8 |
| Description | Adaptive electronic control, automatic or Electronic Range Select (ERS) manual control. Five clutch-pack design with only two open clutches in any gear. Torque converter lock with turbine torsional damper for low lock-up speeds in 1st through 8th gear |
| Gear Ratios | — |
| 1st | 4.71 |
| 2nd | 3.14 |
| 3rd | 2.10 |
| 4th | 1.67 |
| 5th | 1.29 |
| 6th | 1.00 |
| 7th | 0.84 |
| 8th | 0.67 |
| Reverse | 3.30 |
| Axle Gear Ratios | 3.73, 4.10 |
Transmission: 68RFE — automatic six-speed+−
| Availability | 6.7-liter diesel (standard output 2500 and 3500) |
| Description | Three planetary gearsets, one overrunning clutch, full electronic control, and electronically controlled converter clutch |
| Gear Ratios | — |
| 1st | 3.23 |
| 2nd | 1.84 |
| 3rd | 1.41 |
| 4th | 1.0 |
| 5th | 0.82 |
| 6th | 0.63 |
| Reverse | 4.44 |
| Axle Ratios | 3.73 (SRW and DRW), 4.10 (DRW) |
Transfer case: 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 |
Transfer case: BW 44-48+−
| Availability | 6.7-liter diesel high output |
| Type | 44-48 part-time with electric shift, part-time manual shift |
| Operating Modes | 2WD; 4WD High; Neutral; 4WD Low |
| Low-Range Ratio | 2.64 |
| Center Differential | None |
Axles+−
| Front (4x4) | AAM 9.25-in. beam front axle with center disconnect (locking differentials on Power Wagon) |
| Rear | AAM 11.5-in. beam rear axle (2500 and 3500 limited-slip and locking differentials on Power Wagon) |
| Rear | AAM 12.0-in. beam rear axle (3500 Max Tow) |
Electrical system+−
| Alternator | — |
| Rating | 180-amp included with 6.4-liter HEMI V-8 and 6.7-liter diesel |
| Rating | 220-amp included with 6.7-liter Laramie, Longhorn and Limited |
| Rating | Dual (220 and 160) optional on 6.4-liter HEMI V-8 |
| Rating | Dual 220-amp optional on 6.7-liter diesel |
| Battery | — |
| Description | Group 65, maintenance-free, 730 CCA on 6.4-liter HEMI V-8 |
| Description | Dual Group 65, maintenance-free, 730 CCA on 6.7-liter diesel |
Suspension 2500+−
| 4x2 | 4x4 | |
|---|---|---|
| Front | Three-link with track bar, coil springs, stabilizer bar, solid axle | Three-link with track bar, coil springs, stabilizer bar, solid axle, disconnecting sway bar (Power Wagon only) |
| Rear | Five-link with track bar, coil springs, stabilizer bar, solid axle | Five-link with track bar, coil springs, stabilizer bar, solid axle (optional air bags) |
Suspension 3500+−
| 4x2 | 4x4 | |
|---|---|---|
| Front | Three-link with track bar, coil springs, stabilizer bar, solid axle | Three-link with track bar, coil springs, stabilizer bar, solid axle |
| Rear | Two-stage longitudinal leaf (optional supplemental air bags) solid axle | Two-stage longitudinal leaf (optional supplemental air bags) solid axle |
Brakes+−
| Front | — |
| Size and Type | 14.17 X 1.54 (359.9 X 39.1) disc with twin-piston pin-slider caliper and ABS |
| Rear | — |
| Size and Type | 14.09 X 1.34 (357.9 X 34.0) disc with twin-piston pin-slider caliper and ABS |
| Power-Assist Type | Dual-rate, Tandem Diaphragm Vacuum (2500 gas) |
| Power-Assist Type | Hydro-boost (2500 diesel and all 3500) |
Air bags+−
| Regular Cab | 6 |
| Crew Cab | 6 |
| Mega Cab | 6 |
Steering+−
| Power Assist | Hydraulic Assist |
Cargo box+−
| 6-ft. 4-in. (Crew or Mega) | 8-ft. (Regular or Crew) | |
|---|---|---|
| SAE Volume, cu. ft. (cu. m) | 57.5 (1.6) | 74.7 (2.1) |
| Length at Floor, Tailgate Closed | 76.3 (1,938.5) | 98.3 (2,496.5) |
| Cargo Width | 66.4 (1,686.9) | 66.4 (1,686.9) |
| Distance Between Wheelhouses | 51 (1,295.4) | 51 (1,295.4) |
| Depth | 20.1 (511.1) | 20.2 (513.0) |
| Tailgate Opening Width | 60.4 (1,535.3) | 60.4 (1,535.3) |
Exterior dimensions: Regular Cab 140.5-in. WB, 8-ft. box (2500)+−
| 4x2 | 4x4 | |
|---|---|---|
| Wheelbase | 140.2 (3,560) | 140.2 (3,560) |
| Track Width – Front | 68.7 (1,745) | 68.7 (1,745) |
| Track Width – Rear | 68.1 (1,729) | 68.1 (1,729) |
| Overall Length | 232 (5,892) | 232 (5,892) |
| Overall Width @ SgRp Front | 83.5 (2,120) | 83.5 (2,120) |
| Overall Height | 78 (1,981) | 80.2 (2,037) |
| Ground Clearance | — | — |
| Suspension or Axle to Ground – Front | 7.3 (184) | 9.3 (237) |
| Suspension or Axle to Ground – Rear | 8.4 (212) | 8.5 (217) |
| Approach Angle (Degrees) | 18.8 | 22.8 |
| Ramp Breakover Angle (Degrees) | 20.8 | 23.9 |
| Departure Angle (Degrees) | 22.9 | 29.9 |
| Ground Clearance | 13 (332) | 13.1 (333) |
| Turning Diameter | 45.4 (13.8) | 45.5 (13.9) |
Exterior dimensions: Crew Cab 149.5-in. WB, 6-ft. 4-in. box (2500)+−
| 4x2 | 4x4 | |
|---|---|---|
| Wheelbase | 149 (3,785) | 149 (3,785) |
| Track Width – Front | 68.7 (1,745) | 68.7 (1,745) |
| Track Width – Rear | 68.1 (1,729) | 68.1 (1,729) |
| Overall Length | 238.8 (6,066) | 238.8 (6,067) |
| Overall Width @ SgRp Front | 83.5 (2,120) | 83.5 (2,120) |
| Overall Height | 78.2 (1,987) | 80.2 (2,037) |
| Suspension or Axle to Ground – Front | 7.4 (188) | 9.3 (236) |
| Suspension or Axle to Ground – Rear | 8.5 (216) | 8.5 (217) |
| Approach Angle (Degrees) | 18.8 | 22.9 |
| Ramp Breakover Angle (Degrees) | 20.3 | 23.9 |
| Departure Angle (Degrees) | 23.6 | 25.8 |
| Ground Clearance | 11.1 (281) | 13.1 (333) |
| Turning Diameter | 14.6 (47.9) | 14.6 (47.9) |
Exterior dimensions: Crew Cab 169.5-in. WB, 8-ft. box (2500)+−
| 4x2 | 4x4 | |
|---|---|---|
| Wheelbase | 169 (4,293) | 169 (4,293) |
| Track Width – Front | 68.7 (1,734.8) | 68.7 (1,745) |
| Track Width – Rear | 68.1 (1,729) | 68.1 (1,729) |
| Overall Length | 260.8 (6,626) | 260.8 (6,626) |
| Overall Width @ SgRp Front | 83.5 (2,120) | 83.5 (2,120) |
| Overall Height | 78.1 (1,983) | 80.1 (2,035) |
| Suspension or Axle to Ground – Front | 7.3 (185) | 9.4 (237) |
| Suspension or Axle to Ground – Rear | 9.9 (253) | 8.6 (218) |
| Approach Angle (Degrees) | 18.7 | 23.2 |
| Ramp Breakover Angle (Degrees) | 19.1 | 22.7 |
| Departure Angle (Degrees) | 22.5 | 24.7 |
| Ground Clearance | 11.1 (282) | 13.1 (334) |
| Turning Diameter | 16.3 (53.5) | 16.3 (53.5) |
Exterior dimensions: Power Wagon Crew Cab 149.3-in. WB, 6-ft. 4-in. box+−
| 4x2 | 4x4 | |
|---|---|---|
| Wheelbase | — | 149.3 (3,792) |
| Track Width – Front | — | 68.7 (1,745) |
| Track Width – Rear | — | 68.1 (1,729) |
| Overall Length | — | 238.8 (6,067) |
| Overall Width @ SgRp Front | — | 83.4 (2,119) |
| Overall Height | — | 80.9 (2,054) |
| Suspension or Axle to Ground – Front | — | 8.3 (210) |
| Suspension or Axle to Ground – Rear | — | 8.3 (210) |
| Approach Angle (Degrees) | — | 29.4 |
| Ramp Breakover Angle (Degrees) | — | 22 |
| Departure Angle (Degrees) | — | 26 |
| Ground Clearance | — | 14.2 (360) |
| Turning Diameter | — | 14.7 (48.2) |
Exterior dimensions: Mega Cab 160.5-in. WB, 6-ft. 4-in. box (2500)+−
| 4x2 | 4x4 | |
|---|---|---|
| Wheelbase | — | 160.4 (4,074) |
| Track Width – Front | — | 68.7 (1,745) |
| Track Width – Rear | — | 68.1 (1,729) |
| Overall Length | — | 249.9 (6,348) |
| Overall Width @ SgRp Front | — | 83.5 (2,120) |
| Overall Height | — | 80.1 (2,036) |
| Suspension or Axle to Ground – Front | — | 9.4 (238) |
| Suspension or Axle to Ground – Rear | — | 8.5 (217) |
| Approach Angle (Degrees) | — | 23.3 |
| Ramp Breakover Angle (Degrees) | — | 23.2 |
| Departure Angle (Degrees) | — | 25.7 |
| Ground Clearance | — | 13.1 (334) |
| Turning Diameter | — | 15.6 (51.2) |
Exterior dimensions: Regular Cab 140.5-in. WB, 8-ft. box (3500)+−
| 4x2 | 4x4 | |
|---|---|---|
| Wheelbase | 140.2 (3,560) | 140.2 (3,560) |
| Track Width – Front | 67.7 (1,719) | 67.7 (1,719) |
| Track Width – Front (DRW) | 69.6 (1,769) DRW | 69.6 (1,769) DRW |
| Track Width – Rear | 67.1 (1,703) | 67.1 (1,703) |
| Track Width – Rear (DRW) | 75.9 (1,927) DRW | 75.9 (1,927) DRW |
| Overall Length | 232 (5,892) | 232 (5,892) |
| Overall Width @ SgRp Front | 83.5 (2,120) | 83.5 (2,120) |
| Overall Width @ SgRp Front (DRW) | 96.5 (2,450) DRW | 96.5 (2,450) DRW |
| Overall Height | 77.8 (1,976) | 79.5 (2,019) |
| Suspension or Axle to Ground – Front | 7.4 (188) | 9.3 (237) |
| Suspension or Axle to Ground – Front (DRW) | 6.6 (168) DRW | 8.5 (216) DRW |
| Suspension or Axle to Ground – Rear | 7.9 (209) | 8.5 (217) |
| Suspension or Axle to Ground – Rear (DRW) | 8.2 (208) DRW | 8.4 (213) DRW |
| Approach Angle (Degrees) | 18.2 | 23.2 |
| Approach Angle (Degrees) (DRW) | 16.6 DRW | 20.6 DRW |
| Ramp Breakover Angle (Degrees) | 21.8 | 25.2 |
| Ramp Breakover Angle (Degrees) (DRW) | 19.7 DRW | 23.2 DRW |
| Departure Angle (Degrees) | 25.4 | 25.2 |
| Departure Angle (Degrees) (DRW) | 23.6 DRW | 24.4 DRW |
| Ground Clearance | 11.2 (286) | 13.3 (338) |
| Ground Clearance (DRW) | 10.6 (269) DRW | 12.4 (314) DRW |
| Turning Diameter | 13.8 (45.4) | 13.9 (45.5) |
Rows marked (DRW) are the dual-rear-wheel values printed on a second line under the same label.
Exterior dimensions: Crew Cab 169.5-in. WB, 8-ft. box (3500)+−
| 4x2 | 4x4 | |
|---|---|---|
| Wheelbase | 169.1 (4,294) | 169.3 (4,300) |
| Track Width – Front | 67.7 (1,719) | 67.7 (1,719) |
| Track Width – Front (DRW) | 69.6 (1,769) DRW | 69.6 (1,769) DRW |
| Track Width – Rear | 67.1 (1,703) | 67.1 (1,703) |
| Track Width – Rear (DRW) | 75.9 (1,927) DRW | 75.9 (1,927) DRW |
| Overall Length | 260.8 (6,626) | 260.8 (6,626) |
| Overall Width @ SgRp Front | 83.5 (2,120) | 83.5 (2,120) |
| Overall Width @ SgRp Front (DRW) | 96.5 (2,450) DRW | 96.5 (2,450) DRW |
| Overall Height | 78.4 (1,990) | 78.4 (1,990) |
| Overall Height (DRW) | 77.1 (1,959) DRW | 79.3 (2,015) DRW |
| Suspension or Axle to Ground – Front | 7.3 (186) | 7.3 (186) |
| Suspension or Axle to Ground – Front (DRW) | 6.4 (162) DRW | 8.4 (214) DRW |
| Suspension or Axle to Ground – Rear | 9.0 (228) | 9.0 (228) |
| Suspension or Axle to Ground – Rear (DRW) | 6.4 (162) DRW | 9.3 (236) DRW |
| Approach Angle (Degrees) | 18.3 | 23.3 |
| Approach Angle (Degrees) (DRW) | 16.9 DRW | 20.6 DRW |
| Ramp Breakover Angle (Degrees) | 19.5 | 22.4 |
| Ramp Breakover Angle (Degrees) (DRW) | 17.3 DRW | 21.3 DRW |
| Departure Angle (Degrees) | 24.2 | 23.5 |
| Departure Angle (Degrees) (DRW) | 21.2 DRW | 24.2 DRW |
| Ground Clearance | 11.2 (285) | 11.5 (290) |
| Ground Clearance (DRW) | 10.2 (260) DRW | 12.3 (312) DRW |
| Turning Diameter | 16.3 (53.6) | 16.4 (53.7) |
Rows marked (DRW) are the dual-rear-wheel values printed on a second line under the same label.
Exterior dimensions: Mega Cab 160.5-in. WB, 6-ft. 4-in. box (3500)+−
| 4x2 | 4x4 | |
|---|---|---|
| Wheelbase | — | 160.4 (4,074) |
| Track Width – Front | — | 67.7 (1,719) |
| Track Width – Front (DRW) | — | 69.6 (1,769) DRW |
| Track Width – Rear | — | 67.1 (1,704) |
| Track Width – Rear (DRW) | — | 75.9 (1,927) DRW |
| Overall Length | — | 249.9 (6,348) |
| Overall Width @ SgRp Front | — | 83.5 (1,994) |
| Overall Width @ SgRp Front (DRW) | — | 96.5 (2,450) DRW |
| Overall Height | — | 78.5 (2,036) |
| Overall Height (DRW) | — | 78.9 (2,004) DRW |
| Suspension or Axle to Ground – Front | — | 7.3 (187) |
| Suspension or Axle to Ground – Front (DRW) | — | 8.4 (214) DRW |
| Suspension or Axle to Ground – Rear | — | 8.3 (210) |
| Suspension or Axle to Ground – Rear (DRW) | — | 6.8 (174) DRW |
| Approach Angle (Degrees) | — | 18.5 |
| Approach Angle (Degrees) (DRW) | — | 21.7 DRW |
| Ramp Breakover Angle (Degrees) | — | 20.3 |
| Ramp Breakover Angle (Degrees) (DRW) | — | 21.5 DRW |
| Departure Angle (Degrees) | — | 25.7 |
| Departure Angle (Degrees) (DRW) | — | 23.1 DRW |
Rows marked (DRW) are the dual-rear-wheel values printed on a second line under the same label.
Interior dimensions: accommodations and front+−
| Regular Cab | Crew Cab | Mega Cab | |
|---|---|---|---|
| Model | — | — | — |
| Seating Capacity, F/R | — | — | — |
| Seating | 3/0 or 2/0 | 3/3 or 2/3 | 3/3 or 2/3 |
| Headroom | 39.8 (1,011) | 40.9 (1,038) | 40.9 (1,038) |
| Legroom | 40.9 (1,040) | 40.9 (1,040) | 40.9 (1,040) |
| Shoulder Room | 65.9 (1,675) | 65.9 (1,675) | 65.9 (1,675) |
| Hip Room | 62.9 (1,598) | 62.9 (1,598) | 62.9 (1,598) |
Interior dimensions: rear+−
| Regular Cab | Crew Cab | Mega Cab | |
|---|---|---|---|
| Headroom | — | 39.8 (1,010) | 40.3 (1,023) |
| Legroom | — | 40.2 (1,022) | 43.1 (1,096) |
| Shoulder Room | — | 65.6 (1,666) | 65.6 (1,667) |
| Hip Room | — | 62.7 (1,593) | 62.8 (1,595) |
Interior volume+−
| Regular Cab | Crew Cab | Mega Cab | |
|---|---|---|---|
| Front – cu. ft. (cu. m) | 62.5 (1.8) | 63.9 (1.8) | 63.9 (1.8) |
| Rear – cu. ft. (cu. m) | — | 60.7 (1.7) | 66 (1.9) |
Source: 2021 Ram Heavy Duty Specifications (Stellantis media site).
Which equipment is standard, optional or part of a package on each trim, from the manufacturer's 2021 feature availability guide.
Showing 59 of 72 features. ✓ Standard OptionalPkg Part of a package— Not available
| Feature | Tradesman | Big Horn/Lone Star | Power Wagon | Laramie | Laramie Longhorn | Limited |
|---|---|---|---|---|---|---|
| Configuration | ||||||
| Body ModelRegular Cab 8-ft. box — 169.1-in. wheelbase | ✓ | ✓ | — | — | — | — |
| Crew Cab 6-ft. 4-in. box — 149.1-in. wheelbase | ✓ | ✓ | ✓ | ✓ | ||
| Crew Cab 8-ft. box — 169.1-in. wheelbase | — | |||||
| Mega Cab 6-ft. 4-in. box — 160.2-in. wheelbase | — | — | ||||
| Drive | ||||||
| 4x2 | ✓ | ✓ | — | ✓ | ✓ | ✓ |
| 4x4 | ✓ | |||||
| Powertrain | ||||||
| Engine / Transmission6.7-liter I-6 Cummins Turbo Diesel Standard Output, six-speed automatic transmission (2500/3500) | — | |||||
| 6.7-liter I-6 Cummins Turbo Diesel High Output, six-speed Aisin automatic transmission (3500) | — | |||||
| Mechanical | ||||||
| Rear Axle3.73 axle ratio | — | |||||
| 4.10 axle ratio | ✓ | |||||
| Electronic-locking front and rear differentials | Pkg | — | ✓ | — | — | — |
| Anti-spin differential (E-Locker and Anti-spin are mutually exclusive) | — | |||||
| Suspension | ||||||
| Auto-Level rear air suspension system | — | |||||
| Transfer Case | ||||||
| Manual part-time | ✓ | — | ✓ | — | — | — |
| Electronic On-Demand | ✓ | — | ✓ | ✓ | ✓ | |
| Interior | ||||||
| SunroofSingle-pane, power-operated (Crew Cab/Mega Cab) | — | |||||
| Uconnect Multimedia | ||||||
| RadiosUconnect 5.0 AM/FM/Bluetooth | ✓ | ✓ | — | — | — | — |
| Uconnect 8.4 AM/FM/Bluetooth/SiriusXM Radio | Pkg | ✓ | ✓ | — | — | |
| Uconnect 8.4 AM/FM/Bluetooth/SiriusXM Radio/NAV/HD/CELL | — | O/P | ✓ | — | ||
| Uconnect 12-in. radio | — | Pkg | ✓ | |||
| Sound System | ||||||
| Base six-speaker (four-speaker Regular Cab) | ✓ | ✓ | ✓ | — | — | — |
| Premium 10-speaker (seven-speaker Regular Cab) | — | O/P | ✓ | ✓ | ✓ | |
| Premium Plus 17-speaker | — | — | Pkg | Pkg | Pkg | |
| Safety & Security | ||||||
| CameraCargo View camera (Included in Tow Tech and Max Tow Groups) | Pkg | O/P | O/P | O/P | O/P | O/P |
| Active Features | ||||||
| Adaptive Steering (Included in Safety Group) | Pkg | Pkg | Pkg | O/P | O/P | O/P |
| Blind-spot Monitoring with conventional trailer coverage and Rear Cross Path detection (Included in Safety Group) | O/P | O/P | O/P | O/P | O/P | ✓ |
| Parking Sensors | ||||||
| ParkSense front/rear park assist system | — | O/P | ✓ | ✓ | ✓ | ✓ |
| Front park sensors | — | — | — | — | ||
| Fuel Tank | ||||||
| 28-gal. tank (standard on Regular Cab, diesel engines) | Pkg | Pkg | ✓ | — | — | — |
| 32-gal. tank (standard on Regular Cab and Crew Cab with 8-ft. box) | S/O | ✓ | ✓ | ✓ | ✓ | ✓ |
| 50-gal. tank (Optional on Crew Cab with 8-ft. box) | — | |||||
| Trailer Brake Controller | ||||||
| Integrated controller (included in Max Tow Package) | O/P | ✓ | ✓ | ✓ | ✓ | ✓ |
| Appearance Packages | ||||||
| Body-color Bumper Groupfront/rear bumper painted body color | — | — | — | |||
| Chrome Appearance Group (Tradesman)chrome front/rear bumper; upper header/lower applique – chrome; Tradesman grille – chrome; steel chrome-clad wheels 18 x 8-in. (single rear wheel); steel wheel with chrome clad 17 x 6-in. (dual rear wheel) | — | — | — | — | — | |
| Chrome Appearance Group (Laramie)chrome side steps, flat, wheel-to-wheel; chrome belt molding; chrome tow hooks | — | — | — | — | — | |
| Limited Night Edition Packagemonotone paint only (select colors); body-color front bumper; body-color rear bumper; black badging; black grille and surround; body-color door handles; body-color mirror caps; dark headlight bezel; 20 x 9-in. cast aluminum black wheels (Tradesman and Big Horn); 20-in. OWL All-season | — | — | — | — | — | ✓ |
| Sport Appearance Groupmonotone paint; body color door handles, front/rear bumper; upper header/lower applique – painted body color; interior, black with black headliner; ParkSense front/rear park assist (Big Horn/Lone Star only, standard on Laramie); 17 x 6-in. polished aluminum wheels (Big Horn/Lone Star dual rear wheel only) | — | — | — | — | ||
| Equipment Groups | ||||||
| Tradesman Level 1 Equipment Group (Reg Cab only)overhead console, incandescent lighting; power windows, one touch down; power door locks, speed sensitive; premium vinyl door trim; mirrors, 6 x 9-in. power / heated (black) (2500 only); mirrors, trailer-tow, power / heated / puddle / turn / man. fold (black) (3500 only); remote keyless entry; interior door handle, satin chrome, polished | — | — | — | — | — | |
| Tradesman Level 2 Equipment Group – All Cabs (Includes Level 1 Group Equipment on Reg Cab) — includes bench seats - Soul/Soulmate/Gear cloth; floor covering, carpet; optional: floor covering, vinyl; floor mats – carpeted, front (Reg Cab) and rear (Crew Cab); optional: floor mats – rubber, front (Reg Cab) and rear (Crew Cab); rear window, manual sliding (Reg Cab only); rear window, power sliding (Crew Cab); rear window, defroster (Crew Cab only); SiriusXM Radio | — | — | — | — | — | |
| Big Horn Level 1 Equipment Group18 x 8-in. cast aluminum polished wheels (single rear wheel only); halogen fog lamps; black power / heated / puddle / turn / power fold exterior mirrors; eight-way power driver seat with two-way lumbar, manual passenger seat; Uconnect 8.4 (AM/FM/SAT/Bluetooth) SiriusXM Radio; leather-wrapped steering wheel with audio controls; 3.5-in. color TFT cluster display; auto-dim rear view mirror; driver and passenger visors with illuminated vanity mirror; universal garage door opener in visor; switchable dome lamp – footwell lighting; upper closed glove box with painted door and Big Horn badge; glove box lighting – power-adjustable pedals; rear in-floor storage boxes (Crew Cab only); folding flat load floor (Crew Cab only); manual sliding rear window (Reg Cab only); foam bottle inserts (front doors only) | — | — | — | — | — | |
| Big Horn Level 2 Equipment Group (Includes Big Horn Level 1 Group Equipment) — includes 7-in. color TFT cluster display; remote start, key fob activated - security alarm; ParkSense front/rear park assist (six rear sensors with DRW); heated front seats; heated steering wheel; dual-zone air conditioning (not available on Reg Cab); power sliding rear window (Crew and Mega Cab only); rear window defroster (Crew and Mega Cab only); dual remote USB ports - charge only (not available on Reg Cab); 115-volt 400W AC power outlets (front, rear) (rear not available on Reg Cab); damped tailgate | — | — | — | — | — | |
| Power Wagon Level 1 Equipment Groupremote start, key fob activated; power-adjustable pedals; perforated leather steering wheel with audio controls / gray stitching / heated; heated front seats; rear in-floor storage boxes (Crew Cab only); universal garage door opener in visor; driver and passenger visors with illuminated vanity mirror and universal garage door opener; foam bottle inserts (front doors only); power release tailgate | — | — | — | — | — | |
| Power Wagon Level 2 Equipment Group (Includes Power Wagon Level 1 Group Equipment) — includes bench seats – black soft leather with heavy-duty Bristol vinyl and heavy-duty Gode-Tex vinyl accents; premium audio (9 speakers + 1 subwoofer); trailer-tow mirrors, power / heated / puddle / turn / memory / power fold / power convex / trailer spotlight (black); power-adjustable pedals with memory; radio / driver seat / mirror / pedal memory; auto high-beam headlamp control; rain-sensitive wipers; switchable LED dome lamp; LED front/rear door accent lighting; LED overhead console; LED front footwell lighting; dual-zone air conditioning; remote proximity (passive) keyless entry; dual remote USB ports - charge only; 115-volt 400W AC power outlet (rear); security alarm | — | — | — | — | — | |
| Laramie Level 1 Equipment Groupauto high-beam headlamp control; rain-sensitive wipers; power release tailgate; rear in-floor storage boxes (Crew Cab only); foam bottle inserts (front doors only); single-disc CD player; ventilated outboard seating positions (3 levels); radio/driver seat/mirror/pedal memory; 6 x 9-in. power / heated mirrors (black), memory; power-adjustable pedals; blind spot monitoring with cross path detection | — | — | — | — | — | |
| Laramie Level 2 Equipment Group (Includes Laramie Level 1 Group Equipment) — includes rear seat heat (3 adjustment levels); dual remote USB ports - charging only; wireless charging pad (bucket seats only); Uconnect 8.4 (AM/FM/SAT/Bluetooth/NAV/Voice); premium 17-speaker surround sound system (16 amplified speakers + subwoofer) | — | — | — | — | — | |
| Laramie Longhorn Level 1 Equipment Groupblind-spot monitoring with cross path detection; Uconnect 12.0 - AM/FM/BT/SXM/NAV/HD/Cell; premium 17-speaker surround sound system (16 amplified speakers + subwoofer); wireless charging pad; power running boards | — | — | — | — | — | |
| Limited Level 1 Equipment GroupSurround View camera; full-speed Forward Collision Warning-Plus with auto emergency braking; Adaptive Cruise Control with Stop; premium 17-speaker surround sound system (16 + subwoofer); trailer reverse guidance (included with surround view camera) | — | — | — | — | — | |
| Functional Packages | ||||||
| Bed Utility Groupdeployable bed step; LED bed lighting; spray-in bedliner | — | — | ||||
| Box Delete (Regular Cab or Crew Cab) (Not available with Power Wagon Package) | — | — | — | — | ||
| Cold Weather Groupblock heater; winter front grille cover | — | |||||
| Comfort Groupheated front seats and heated leather-wrapped steering wheel | — | — | — | — | — | |
| Dual Rear Wheel Group (3500 only)rear wheelhouse liners; cab-mounted, box and rear fender LED clearance lamps | — | |||||
| Fifth-wheel/Gooseneck Prep Groupbed-mounted seven-pin connector; mounting holes for fifth-wheel hitch and gooseneck ball; mounting hole covers | — | |||||
| Off-road Group (4x4 2500 only)front/rear Bilstein shocks; transfer case skid plate; tow hooks; Hill-descent Control; all-terrain tires; off-road decal (both sides, rear quarter panel) | — | |||||
| Power Wagon Equipment Group (4x4 2500 only)Articulink suspension; front/rear Bilstein shocks (Power Wagon tuned); Hill-descent Control; Tru-Lok front and rear axles; 4.10 axle ratio; tow hooks; fuel tank skid plate; transfer case skid plate; front electric 12,000-lb. winch; black wheel flares, Power Wagon design; fog lamps; bright chrome front and rear bumper (Tradesman); front disconnecting stabilizer bar; 17 x 8.0-in. cast aluminum Power Wagon wheel; LT285/70R17D OWL Goodyear Wrangler Duratrac all-terrain tires; rear wheel well liners | — | ✓ | — | — | — | |
| Premium Lighting GroupBi-LED projector headlamps with signature lighting; LED taillamps and fog lamps with signature lighting | — | — | — | — | — | |
| Protection Group (4x4 models only)tow hooks (2500, 3500 Tradesman Regular Cab); transfer case skid plate | — | |||||
| Snow Chief Group220-amp alternator; anti-spin rear differential; instrument panel mounted auxiliary switches; LED clearance lamps; LT275/70R18E OWL On/Off-road tires (with 18-in. wheels); transfer case skid plate | — | |||||
| Snow Plow Prep Group220-amp alternator; transfer case skid plate | — | |||||
- A dash in the printed guide is recorded as NA.
- Package rows name the option group followed by what it includes.
- Some packages are limited to a model or drive, such as 3500 only or 4x4 2500 only, as noted in the row label.
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.
Big Horn/Lone Star over Tradesman+1 standard +
- ✓Integrated controller (included in Max Tow Package)
Power Wagon over Big Horn/Lone Star+2 standard +
- ✓Uconnect 8.4 AM/FM/Bluetooth/SiriusXM Radio
- ✓ParkSense front/rear park assist system
Laramie over Power Wagon+1 standard +
- ✓Premium 10-speaker (seven-speaker Regular Cab)
Laramie Longhorn over Laramie+1 standard +
- ✓Uconnect 8.4 AM/FM/Bluetooth/SiriusXM Radio/NAV/HD/CELL
Limited over Laramie Longhorn+2 standard +
- ✓Radios: Uconnect 12-in. radio
- ✓Blind-spot Monitoring with conventional trailer coverage and Rear Cross Path detection (Included in Safety Group)
Standard on every trim (3)
- 6.4-liter V-8 HEMI, eight-speed automatic transmission
- ParkView rear backup camera with dynamic gridlines, center lines and zoom
- 31-gal. tank (standard on Crew Cab and Mega Cab with 6-ft. 4-in. box)
Source: 2021 Ram Heavy Duty Feature Availability, Stellantis North America. Equipment can change during the model year and some items arrive late; confirm on the window sticker.
2021 Ram 3500 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 or after that many years, whichever comes first. Engines: ESB.
| Service | 20k2 yr | 30k3 yr | 40k4 yr | 50k5 yr | 60k6 yr | 70k7 yr | 80k8 yr | 90k9 yr | 100k10 yr | 110k11 yr | 120k12 yr | 130k13 yr | 140k14 yr | 150k15 yr |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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, replace as necessary. | ||||||||||||||
| Adjust parking brake as necessary. | ||||||||||||||
| Inspect transfer case fluid. | ||||||||||||||
| Additional Maintenance | ||||||||||||||
| Replace the cabin air filter. | ||||||||||||||
| Replace the engine air cleaner filter. | ||||||||||||||
| Replace spark plugs. The spark plug change interval is mileage based only, yearly intervals do not apply. | ||||||||||||||
| Flush and replace the engine coolant at 10 years or 150,000 miles (240,000 km) whichever comes first. | ||||||||||||||
| 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 battery and clean and tighten terminals as required.
- Inspect the CV/Universal joints.
- Inspect brake pads, shoes, rotors, drums, hoses and parking brake.
- Inspect engine cooling system protection and hoses.
- Inspect exhaust system.
- Inspect engine air cleaner filter if using in dusty or off-road conditions. If required, replace engine air cleaner filter.
- Inspect and replace the Evaporative System Fresh Air Filter as necessary, replacement may be more frequent if vehicle is operated in extreme dusty conditions.
2021 Ram 3500 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) | 6.4L gasoline engine: 2500/3500 short bed | 31 gal | 117 L |
| 6.4L gasoline engine: 2500/3500 long bed | 32 gal | 121 L | |
| 6.4L gasoline engine: 2500/3500 Crew Cab long bed, if equipped | 50 gal | 189 L | |
| Engine oil with filter | 6.4L gasoline engine | 7 qt | 6.6 L |
| Cooling system | 6.4L gasoline engine | 16.6 qt | 15.7 L |
| Fuel tank (approximate) | 6.7L diesel engine: 2500/3500 Standard Cab long bed | 28 gal | 106 L |
| 6.7L diesel engine: 2500/3500 Crew Cab/Mega Cab short bed | 31 gal | 117 L | |
| 6.7L diesel engine: 2500/3500 Crew Cab long bed | 32 gal | 121 L | |
| 6.7L diesel engine: 2500/3500 Crew Cab long bed, if equipped | 50 gal | 189 L | |
| Diesel exhaust fluid tank | 6.7L diesel engine | 5.7 gal | 21 L |
| Engine oil with filter | 6.7L diesel engine | 12 qt | 11.4 L |
| Cooling system | 6.7L diesel engine | 22.0 qt | 20.8 L |
Engine fluids
| Component | Fluid / grade | Standard | Mopar product |
|---|---|---|---|
| Engine coolant (6.4L gasoline engine) | Organic Additive Technology (OAT) antifreeze/coolant, 10 year/150,000 mile (240,000 km) | — | Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT |
| Engine oil (6.4L gasoline engine) | SAE 0W-40 full synthetic, API SN; all operating temperatures | MS-12633 | Pennzoil Ultra 0W-40 or equivalent Mopar engine oil |
| Engine oil filter (6.4L gasoline engine) | Mopar engine oil filter, or one meeting SAE/USCAR-36 filter performance requirements | SAE/USCAR-36 | Mopar Engine Oil Filter |
| Engine coolant (6.7L diesel engine) | Organic Additive Technology (OAT) antifreeze/coolant, 10 year/150,000 mile (240,000 km) | — | Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula OAT |
| Engine oil (6.7L diesel engine, ambient above 0°F (-18°C)) | SAE 10W-30, API CK-4 required (Cummins CES 20081 products also acceptable) | MS-10902 | Mopar, Shell Rotella or Shell Rimula 10W-30 |
| Engine oil (6.7L diesel engine, ambient below 0°F (-18°C)) | SAE 5W-40 synthetic, API CK-4 required (Cummins CES 20081 products also acceptable) | MS-10902 | Mopar, Shell Rotella or Shell Rimula 5W-40 |
| Engine oil filter (6.7L diesel engine) | Mopar engine oil filter, or one meeting SAE/USCAR-36 filter performance requirements | SAE/USCAR-36 | Mopar Engine Oil Filter |
| Fuel filters (6.7L diesel engine) | 3 micron rating (engine-mounted filter); 5 micron rating (chassis-mounted filter) | — | Mopar Fuel Filter |
| Crankcase ventilation filter (6.7L diesel engine) | Mopar CCV filter | — | Mopar CCV Filter |
| Diesel exhaust fluid (6.7L diesel engine) | DEF API certified to ISO 22241 | ISO 22241 | Mopar Diesel Exhaust Fluid (API Certified) |
Chassis fluids & lubricants
| Component | Fluid / grade | Standard | Mopar product |
|---|---|---|---|
| Automatic transmission (6.4L gasoline engine: eight-speed automatic) | ZF 8 & 9 Speed ATF or equivalent | — | Mopar ZF 8 & 9 Speed ATF |
| Transfer case (6.4L gasoline engine) | Transfer case lubricant for Borg Warner 44-44 and 44-45 | — | Mopar Transfer Case Lubricant |
| Front and rear axle (6.4L gasoline engine) | SAE 75W-85 HD GL-5 synthetic axle lubricant in 9.25 front and 11.5 and 12.0 single-rear-wheel rear axles; SAE 75W-140 GL-5 synthetic gear lubricant in 12.0 dual-rear-wheel rear axles; limited slip additive required for limited slip axles | — | Ram SAE 75W-85 HD GL-5 Synthetic Axle Lubricant; Mopar GL-5 Synthetic Gear Lubricant SAE 75W-140 |
| Brake master cylinder (6.4L gasoline engine) | DOT 3 | — | Mopar DOT 3 |
| Power steering reservoir (6.4L gasoline engine) | Power steering fluid +4 or ATF+4 | — | Mopar Power Steering Fluid +4 or Mopar ATF+4 |
| Automatic transmission (6.7L diesel engine: 68RFE) | ATF+4 | — | Mopar ATF+4 |
| Automatic transmission (6.7L diesel engine: AS69RC) | ASRC automatic transmission fluid or equivalent | — | Mopar ASRC Automatic Transmission Fluid |
| Transfer case (6.7L diesel engine) | BW44-44 transfer case fluid | — | Mopar BW44-44 Transfer Case Fluid |
| Front and rear axle (6.7L diesel engine) | SAE 75W-85 HD GL-5 synthetic axle lubricant in 9.25 front and 11.5 and 12.0 single-rear-wheel rear axles; SAE 75W-140 GL-5 synthetic gear lubricant in 12.0 dual-rear-wheel rear axles; limited slip additive required for limited slip axles | — | Ram SAE 75W-85 HD GL-5 Synthetic Axle Lubricant; Mopar GL-5 Synthetic Gear Lubricant SAE 75W-140 |
| Brake master cylinder (6.7L diesel engine) | DOT 3 | — | Mopar DOT 3 |
Fuel
| Engine | Minimum | Ethanol / biodiesel |
|---|---|---|
| 6.4L gasoline engine | 87 octane Regular unleaded | Up to 15% (E15) |
| 6.7L diesel engine | Ultra-low-sulfur diesel | Up to B5 (ASTM D-975); up to B20 (ASTM D-7467) on B20-capable pickups |
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 |
- Manual is shared by Ram 2500 and 3500 pickups; capacity rows are labelled 2500/3500.
- Fuel capacity depends on cab and bed length; 50 gal tank is optional on Crew Cab long bed.
- Diesel engine coolant capacity of 22.0 qt is as printed.
- Check wheel lug torque after 25 miles (40 km) of driving.
Source: Owner's manual on Mopar.com. Always confirm with the manual for your exact vehicle.
2021 Ram 3500 owner's manuals & publications
The manufacturer's owner's manual, quick guides, radio manuals, supplements and warranty booklets for the 2021 model year.
Owner's manuals
Quick guides
Uconnect & radio
Supplements
Warranty
- California Song-Beverly Consumer Warranty ActWarranty booklet (PDF)
- Diesel California Emission WarrantyCalifornia emissions warranty (PDF)
- Gas California Emission WarrantyCalifornia emissions warranty (PDF)
- Diesel WarrantyWarranty booklet (PDF)
- Gas WarrantyWarranty booklet (PDF)
- California Emission Warranty SupplementCalifornia 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.
2021 Ram 3500 questions
How much oil does the 2021 Ram 3500 take?
With a filter change: 6.4L gasoline engine, 7 qt / 6.6 L and 6.7L diesel engine, 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 2021 Ram 3500 use?
6.4L gasoline engine: SAE 0W-40 full synthetic, API SN; all operating temperatures (MS-12633); 6.4L gasoline engine: Mopar engine oil filter, or one meeting SAE/USCAR-36 filter performance requirements (SAE/USCAR-36); 6.7L diesel engine, ambient above 0°F (-18°C): SAE 10W-30, API CK-4 required (Cummins CES 20081 products also acceptable) (MS-10902); 6.7L diesel engine, ambient below 0°F (-18°C): SAE 5W-40 synthetic, API CK-4 required (Cummins CES 20081 products also acceptable) (MS-10902); and 6.7L diesel engine: Mopar engine oil filter, or one meeting SAE/USCAR-36 filter performance requirements (SAE/USCAR-36).
When is the first scheduled maintenance on the 2021 Ram 3500?
At 20,000 miles or 2 years: 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, replace as necessary; adjust parking brake as necessary; replace the cabin air filter. Oil changes in between follow the oil-change indicator.
Where can I find the 2021 Ram 3500 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.