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Ram 3500 · Model year 2020

2020 Ram 3500 specs, maintenance & manuals

Everything the manufacturer published about the 2020 Ram 3500 in one place: the factory spec sheet, the maintenance schedule, fluid capacities and 14 manufacturer publications, and towing ratings up to 35,100 lb.

Max towing
35,100 lb
Schedule covers
150k miles
Publications
14

2020 Ram 3500 specs & features

Engines, gear ratios, suspension, brakes, dimensions and capacities as published in the manufacturer's 2020 specification sheet.

General information+
Vehicle TypeRegular Cab, Crew Cab and Mega Cab: 4x2, 4x4
Assembly PlantSaltillo Truck Assembly Plant, Coahuila, Mexico
EPA Vehicle ClassStandard Pickup
Body/chassis+
4x24x4
LayoutLongitudinal, front engineLongitudinal, front engine, transfer case
ConstructionLadder-type frame, steel cab, Double-wall steel pickup boxLadder-type frame, steel cab, Double-wall steel pickup box
Engine: 6.4-liter HEMI V-8+
Type And Description90-degree gasoline V-8 with variable cam timing
Displacement392 cu. in. (6,417 cu. cm)
Bore X Stroke4.09 X 3.72 (103.9 X 94.6)
Valve SystemPushrod-operated overhead valves, 16 valves, eight deactivating and eight hydraulic lifters, all with roller followers
Fuel InjectionSequential, multiport, electronic, returnless
ConstructionDeep-skirt cast-iron block with cross-bolted main bearing caps, 356 aluminum cylinder heads with hemispherical combustion chambers
Compression Ratio10.0:1
Power410 hp (306 Kw) @ 5,600 RPM
Torque429 lb.-ft. (582 N•M) at 4,000 RPM
Maximum Engine Speed5,800 RPM limited
Fuel RequirementUnleaded regular, 87 octane
Oil Capacity7.0 quarts (6.6 liters)
Coolant Capacity16.6 quarts (15.75 liters)
Emission ControlThree-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 DescriptionInline six cylinder, turbocharged, intercooled diesel
Displacement408 cu. in. (6,690 cu. cm)
Bore X Stroke4.21 X 4.88 (107 X 124)
Valve SystemPushrod-operated overhead valves, 24 valves, hydraulic lifters
Fuel InjectionElectronic high-pressure common rail
ConstructionCompacted graphite iron (CGI) block cast-iron head
Compression Ratio19.0:1
Power370 hp (276 Kw) @ 2,800 RPM (68RFE automatic transmission)
Torque850 lb.-ft. (1,084 N•M) @ 1,152 RPM
Maximum High-Idle Engine Speed3,200 RPM
Fuel RequirementUltra-low sulfur diesel
Oil Capacity12.0 quarts (11.3 liters) with filter
Coolant Capacity23.8 quarts (22.50 liters)
Emission ControlsSelective catalytic reduction (SCR)
Engine: 6.7-liter Cummins Turbo Diesel I-6 (3500 high output)+
Type And DescriptionInline six cylinder, turbocharged, intercooled diesel
Displacement408 cu. in. (6,690 cu. cm)
Bore X Stroke4.21 X 4.88 (107 X 124)
Valve SystemPushrod-operated overhead valves, 24 valves, hydraulic lifters
Fuel InjectionElectronic high-pressure common rail
ConstructionCompacted graphite iron (CGI) block cast-iron head
Compression Ratio16.2:1
Power400 hp (276 Kw) @ 2,800 RPM (Aisin automatic transmission)
Torque1,000 lb.-ft. (1,084 N•M) @ 1,356 RPM
Maximum High-Idle Engine Speed3,200 RPM
Fuel RequirementUltra-low sulfur diesel
Oil Capacity12.0 quarts (11.3 liters) with filter
Coolant Capacity23.8 quarts (22.50 liters)
Emission ControlsSelective catalytic reduction (SCR)
Transmission: Aisin AS69RC — automatic six-speed (3500 high output)+
Availability6.7-liter diesel high output
DescriptionThree planetary gear sets, full electronic control, electronically controlled converter clutch
1st3.75
2nd2.0
3rd1.34
4th1.0
5th0.77
6th0.63
Reverse3.54
Axle Ratios3.73 (SRW and DRW), 4.10 (DRW only)
Transmission: ZF 8HP75 — automatic eight-speed+
Availability6.4-liter HEMI V-8
DescriptionAdaptive 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
1st4.71
2nd3.14
3rd2.10
4th1.67
5th1.29
6th1.00
7th0.84
8th0.67
Reverse3.30
Axle Gear Ratios3.73, 4.10
Transmission: 68RFE — automatic six-speed+
Availability6.7-liter diesel (standard output 2500 and 3500)
DescriptionThree planetary gearsets, one overrunning clutch, full electronic control, and electronically controlled converter clutch
1st3.23
2nd1.84
3rd1.41
4th1.0
5th0.82
6th0.63
Reverse4.44
Axle Ratios3.73 (SRW and DRW), 4.10 (DRW)
Transfer case: BW 44-46, BW 44-47+
AvailabilityOptional on 6.7-liter diesel and 6.4-liter HEMI V-8
TypePart-time – BW 44-47 manual shift and BW 44-46 electric shift
Operating Modes2WD; 4WD High; Neutral; 4WD Low
Low-Range Ratio2.64
Center DifferentialNone
Transfer case: BW 44-48+
Availability6.7-liter diesel high output
Type44-48 part-time with electric shift, 44-49 part-time manual shift
Operating Modes2WD; 4WD High; Neutral; 4WD Low
Low-Range Ratio2.64
Center DifferentialNone
Axles+
Front (4x4)AAM 9.25-in. beam front axle with center disconnect (locking differentials on Power Wagon)
RearAAM 11.5-in. beam rear axle (2500 and 3500 limited-slip and locking differentials on Power Wagon)
RearAAM 12.0-in. beam rear axle (3500 Max Tow)
Electrical system+
Alternator rating180-amp included with 6.4-liter HEMI V-8 and 6.7-liter diesel
Alternator rating220-amp included with 6.7-liter Laramie, Longhorn and Limited
Alternator ratingDual (220 and 160) optional on 6.4-liter HEMI V-8
Alternator ratingDual 220-amp optional on 6.7-liter diesel
Battery descriptionGroup 65, maintenance-free, 730 CCA on 6.4-liter HEMI V-8
Battery descriptionDual Group 65, maintenance-free, 730 CCA on 6.7-liter diesel
Suspension 2500+
4x24x4
FrontThree-link with track bar, coil springs, stabilizer bar, solid axleThree-link with track bar, coil springs, stabilizer bar, solid axle, disconnecting sway bar (Power Wagon only)
RearFive-link with track bar, coil springs, stabilizer bar, solid axleFive-link with track bar, coil springs, stabilizer bar, solid axle (optional air bags)
Suspension 3500+
4x24x4
FrontThree-link with track bar, coil springs, stabilizer bar, solid axleThree-link with track bar, coil springs, stabilizer bar, solid axle
RearTwo-stage longitudinal leaf (optional supplemental air bags) solid axleTwo-stage longitudinal leaf (optional supplemental air bags) solid axle
Brakes+
Front: size and type14.17 X 1.54 (359.9 X 39.1) disc with twin-piston pin-slider caliper and ABS
Rear: size and type14.09 X 1.34 (357.9 X 34.0) disc with twin-piston pin-slider caliper and ABS
Rear: power-assist typeDual-rate, Tandem Diaphragm Vacuum (2500 gas)
Rear: power-assist typeHydro-boost (2500 diesel and all 3500)
Air bags+
Regular Cab6
Crew Cab6
Mega Cab6
Steering+
Power AssistHydraulic 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 Closed76.3 (1,938.5)98.3 (2,496.5)
Cargo Width66.4 (1,686.9)66.4 (1,686.9)
Distance Between Wheelhouses51 (1,295.4)51 (1,295.4)
Depth20.1 (511.1)20.2 (513.0)
Tailgate Opening Width60.4 (1,535.3)60.4 (1,535.3)

Column headings are the nominal box sizes.

Exterior dimensions: Regular Cab 140.5-in. WB, 8-ft. box (2500)+
4x24x4
Wheelbase140 (3,560)140.2 (3,560)
Track Width – Front68.7 (1,745)68.7 (1,745)
Track Width – Rear68.1 (1,729)68.1 (1,729)
Overall Length232 (5,892)232 (5,892)
Overall Width @ SgRp Front83.5 (2,120)83.5 (2,120)
Overall Height78 (1,981)80.2 (2,037)
Suspension or Axle to Ground – Front7.3 (184)9.3 (237)
Suspension or Axle to Ground – Rear8.4 (212)8.5 (217)
Approach Angle (Degrees)18.822.8
Ramp Breakover Angle (Degrees)20.823.9
Departure Angle (Degrees)22.929.9
Ground Clearance13 (332)13.1 (333)
Turning Diameter45.4 (13.8)45.5 (13.9)

The sheet prints this table in two blocks (the second headed continued); merged here.

Exterior dimensions: Crew Cab 149.5-in. WB, 6-ft. 4-in. box (2500)+
4x24x4
Wheelbase149 (3,785)149 (3,785)
Track Width – Front68.7 (1,745)68.7 (1,745)
Track Width – Rear68.1 (1,729)68.1 (1,729)
Overall Length238.8 (6,066)238.8 (6,067)
Overall Width @ SgRp Front83.5 (2,120)83.5 (2,120)
Overall Height78.2 (1,987)80.2 (2,037)
Suspension or Axle to Ground – Front7.4 (188)9.3 (236)
Suspension or Axle to Ground – Rear8.5 (216)8.5 (217)
Approach Angle (Degrees)18.822.9
Ramp Breakover Angle (Degrees)20.323.9
Departure Angle (Degrees)23.625.8
Ground Clearance11.1 (281)13.1 (333)
Turning Diameter14.6 (47.9)14.6 (47.9)
Exterior dimensions: Crew Cab 169.5-in. WB, 8-ft. box (2500)+
4x24x4
Wheelbase169 (4,293)169 (4,293)
Track Width – Front68.7 (1,734.8)68.7 (1,745)
Track Width – Rear68.1 (1,729)68.1 (1,729)
Overall Length260.8 (6,626)260.8 (6,626)
Overall Width @ SgRp Front83.5 (2,120)83.5 (2,120)
Overall Height78.1 (1,983)80.1 (2,035)
Suspension or Axle to Ground – Front7.3 (185)9.4 (237)
Suspension or Axle to Ground – Rear9.9 (253)8.6 (218)
Approach Angle (Degrees)18.723.2
Ramp Breakover Angle (Degrees)19.122.7
Departure Angle (Degrees)22.524.7
Ground Clearance11.1 (282)13.1 (334)
Turning Diameter16.3 (53.5)16.3 (53.5)
Exterior dimensions: Power Wagon Crew Cab 149.3-in. WB, 6-ft. 4-in. box+
4x24x4
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)+
4x24x4
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)+
4x24x4
Wheelbase140.2 (3,560)140.2 (3,560)
Track Width – Front67.7 (1,719)67.7 (1,719)
Track Width – Front (DRW)69.6 (1,769) DRW69.6 (1,769) DRW
Track Width – Rear67.1 (1,703)67.1 (1,703)
Track Width – Rear (DRW)75.9 (1,927) DRW75.9 (1,927) DRW
Overall Length232 (5,892)232 (5,892)
Overall Width @ SgRp Front83.5 (2,120)83.5 (2,120)
Overall Width @ SgRp Front (DRW)96.5 (2,450) DRW96.5 (2,450) DRW
Overall Height77.8 (1,976)79.5 (2,019)
Suspension or Axle to Ground – Front7.4 (188)9.3 (237)
Suspension or Axle to Ground – Front (DRW)6.6 (168) DRW8.5 (216) DRW
Suspension or Axle to Ground – Rear7.9 (209)8.5 (217)
Suspension or Axle to Ground – Rear (DRW)8.2 (208) DRW8.4 (213) DRW
Approach Angle (Degrees)18.223.2
Approach Angle (Degrees) (DRW)16.6 DRW20.6 DRW
Ramp Breakover Angle (Degrees)21.825.2
Ramp Breakover Angle (Degrees) (DRW)19.7 DRW23.2 DRW
Departure Angle (Degrees)25.425.2
Departure Angle (Degrees) (DRW)23.6 DRW24.4 DRW
Ground Clearance11.2 (286)13.3 (338)
Ground Clearance (DRW)10.6 (269) DRW12.4 (314) DRW
Turning Diameter13.8 (45.4)13.9 (45.5)

Rows labeled (DRW) are the sheet's second, unlabeled line under the same label, printed with a trailing DRW (dual rear wheels).

Exterior dimensions: Crew Cab 169.5-in. WB, 8-ft. box (3500)+
4x24x4
Wheelbase169.1 (4,294)169 (4,300)
Track Width – Front67.7 (1,719)67.7 (1,719)
Track Width – Front (DRW)69.6 (1,769) DRW69.6 (1,769) DRW
Track Width – Rear67.1 (1,703)67.1 (1,703)
Track Width – Rear (DRW)75.9 (1,927) DRW75.9 (1,927) DRW
Overall Length260.8 (6,626)260.8 (6,626)
Overall Width @ SgRp Front83.5 (2,120)83.5 (2,120)
Overall Width @ SgRp Front (DRW)96.5 (2,450) DRW96.5 (2,450) DRW
Overall Height78.4 (1,990)78.4 (1,990)
Overall Height (DRW)77.1 (1,959) DRW79.3 (2,015) DRW
Suspension or Axle to Ground – Front7.3 (186)7.3 (186)
Suspension or Axle to Ground – Front (DRW)6.4 (162) DRW8.4 (214) DRW
Suspension or Axle to Ground – Rear9.0 (228)9.0 (228)
Suspension or Axle to Ground – Rear (DRW)6.4 (162) DRW9.3 (236) DRW
Approach Angle (Degrees)18.323.3
Approach Angle (Degrees) (DRW)16.9 DRW20.6 DRW
Ramp Breakover Angle (Degrees)19.522.4
Ramp Breakover Angle (Degrees) (DRW)17.3 DRW21.3 DRW
Departure Angle (Degrees)24.223.5
Departure Angle (Degrees) (DRW)21.2 DRW24.2 DRW
Ground Clearance11.2 (285)11.5 (290)
Ground Clearance (DRW)10.2 (260) DRW12.3 (312) DRW
Turning Diameter16.3 (53.6)16.4 (53.7)

Rows labeled (DRW) are the sheet's second, unlabeled line under the same label, printed with a trailing DRW (dual rear wheels).

Exterior dimensions: Mega Cab 160.5-in. WB, 6-ft. 4-in. box (3500)+
4x24x4
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 labeled (DRW) are the sheet's second, unlabeled line under the same label, printed with a trailing DRW (dual rear wheels). The sheet's table stops at Departure Angle; Ground Clearance and Turning Diameter are not printed for this body.

Interior dimensions: accommodations (front)+
Regular CabCrew CabMega Cab
Seating Capacity, F/R3/0 or 2/03/3 or 2/33/3 or 2/3
Headroom39.8 (1,011)40.9 (1,038)40.9 (1,038)
Legroom40.9 (1,040)40.9 (1,040)40.9 (1,040)
Shoulder Room65.9 (1,675)65.9 (1,675)65.9 (1,675)
Hip Room62.9 (1,598)62.9 (1,598)62.9 (1,598)

Seating capacity is printed under the Model sub-heading, ahead of the Front block.

Interior dimensions: accommodations (rear)+
Regular CabCrew CabMega 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 dimensions: interior volume+
Regular CabCrew CabMega 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: 2020 Ram Heavy Duty Specifications (Stellantis media site).

2020 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: ESA.

Service20k2 yr30k3 yr40k4 yr50k5 yr60k6 yr70k7 yr80k8 yr90k9 yr100k10 yr110k11 yr120k12 yr130k13 yr140k14 yr150k15 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 cabin air filter.
Replace 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 if using in dusty or off-road conditions. If required, replace 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.

2020 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

SystemApplies toUSMetric
Fuel tank (approximate)2500/3500 shortbed models31 gal117 L
2500/3500 longbed models32 gal121 L
2500/3500 crew cab longbed models, if equipped50 gal189 L
Engine oil with filter6.4L engine7 qt6.6 L
Cooling system6.4L engine16.6 qt15.7 L
Fuel tank (approximate)Diesel: 2500/3500 standard cab longbed models28 gal106 L
Diesel: 2500/3500 crew/Mega Cab shortbed models31 gal117 L
Diesel: 2500/3500 crew cab longbed models32 gal121 L
Diesel: 2500/3500 crew cab longbed models, if equipped50 gal189 L
Diesel exhaust fluid tank6.7L Turbo Diesel engine5.7 gal21 L
Engine oil with filter6.7L Turbo Diesel engine12 qt11.4 L
Cooling system6.7L Turbo Diesel engine22.0 qt20.8 L

Engine fluids

ComponentFluid / gradeStandardMopar product
Engine coolant (6.4L gas engine)OAT (organic additive technology) 10-year/150,000-mile coolantMS.90032Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula
Engine oil (6.4L gas engine)SAE 0W-40 full synthetic, API SN, all operating temperaturesMS-12633Pennzoil Ultra 0W-40 or equivalent Mopar engine oil
Engine oil filter (6.4L gas engine)——Mopar engine oil filter
Spark plugs (6.4L gas engine)——Mopar spark plugs
Engine coolant (6.7L Turbo Diesel engine)OAT (organic additive technology) 10-year/150,000-mile coolant—Mopar Antifreeze/Coolant 10 Year/150,000 Mile Formula
Engine oil (6.7L Turbo Diesel engine, ambient above 0°F (-18°C))SAE 10W-30, API CK-4 required; Cummins CES 20081 products also acceptableMS-10902Mopar, Shell Rotella or Shell Rimula
Engine oil (6.7L Turbo Diesel engine, ambient below 0°F (-18°C))SAE 5W-40 synthetic, API CK-4 requiredMS-10902Mopar, Shell Rotella or Shell Rimula
Engine oil filter (6.7L Turbo Diesel engine)——Mopar engine oil filter
Fuel filters (6.7L Turbo Diesel engine)3 micron (engine-mounted filter); 5 micron (chassis-mounted filter)—Mopar fuel filter
Crankcase ventilation filter (6.7L Turbo Diesel engine)——Mopar CCV filter
Diesel exhaust fluid (6.7L Turbo Diesel engine)DEF API certified to ISO 22241ISO 22241Mopar Diesel Exhaust Fluid (API Certified)

Chassis fluids & lubricants

ComponentFluid / gradeStandardMopar product
Automatic transmission (6.4L gas engine, eight-speed automatic)ZF 8&9 speed ATF or equivalent—Mopar ZF 8&9 Speed ATF
Transfer case (6.4L gas engine)Borg Warner 44-44 and 44-45 transfer case lubricant—Mopar Transfer Case Lubricant for Borg Warner 44-44 and 44-45
Front and rear axle (6.4L gas engine)SAE 75W-85 HD GL-5 synthetic axle lubricant (9.25 front, 11.5 and 12.0 single-rear-wheel rear axles); SAE 75W-140 GL-5 synthetic gear lubricant (12.0 dual-rear-wheel rear axle); limited-slip additive required for limited-slip axles—Ram GL-5 synthetic axle lubricant SAE 75W-85 HD; Mopar GL-5 synthetic gear lubricant SAE 75W-140
Brake master cylinder (6.4L gas engine)DOT 3—Mopar DOT 3
Power steering reservoir (6.4L gas engine)Power steering fluid +4 or ATF+4—Mopar Power Steering Fluid +4 or Mopar ATF+4
Automatic transmission (6.7L diesel, 68RFE)ATF+4—Mopar ATF+4
Automatic transmission (6.7L diesel, Aisin AS69RC)ASRC automatic transmission fluid or equivalent—Mopar ASRC Automatic Transmission Fluid
Transfer case (6.7L diesel)BW44-44 transfer case fluid—Mopar BW44-44 Transfer Case Fluid
Front and rear axle (2500/3500) (6.7L diesel)SAE 75W-85 HD GL-5 synthetic axle lubricant (9.25 front, 11.5 and 12.0 single-rear-wheel rear axles); SAE 75W-140 GL-5 synthetic gear lubricant (12.0 dual-rear-wheel rear axle); limited-slip additive required for limited-slip axles—Ram GL-5 synthetic axle lubricant SAE 75W-85 HD; Mopar GL-5 synthetic gear lubricant SAE 75W-140
Brake master cylinder (6.7L diesel)DOT 3—Mopar DOT 3

Fuel

EngineMinimumEthanol / biodiesel
6.4L gas engine87 octane Regular unleadedUp to 15% (E15); no E85 or methanol
6.7L Turbo Diesel engineUltra-low-sulfur dieselUp to B5 (ASTM D-975); up to B20 (ASTM D-7467) on pickups and chassis cabs with B20 capability

Wheel lug nut torque

WheelsTorqueThreadSocket
Cone type130 ft-lb (176 N·m)M14 x 1.5022 mm
Flanged type129 ft-lb (175 N·m)M14 x 1.5022 mm
  • Oil, coolant and DEF figures are the manual's specs for the 2500/3500 family; Ram 3500 shares them.
  • With more than 5% biodiesel, change oil at most every 15,000 miles (12,500 miles chassis cab) and every 6 months.
  • Coolant 6.4L: Mopar 10-year/150,000-mile formula to MS.90032.
  • Gas-engine axle and fluid tables list 2500/3500 together; no 1500-only rows were present.
  • Shortbed gas models hold 31 gal; longbed 32 gal; optional 50-gal tank on crew cab longbed.

Source: Owner's manual on Mopar.com. Always confirm with the manual for your exact vehicle.

2020 Ram 3500 towing capacity: up to 35,100 lbAll 82 configurations by cab, bed, engine and axle ratio.Open the towing chart →

2020 Ram 3500 owner's manuals & publications

The manufacturer's owner's manual, quick guides, radio manuals, supplements and warranty booklets for the 2020 model year.

2020 Ram 3500 questions

How much oil does the 2020 Ram 3500 take?

With a filter change: 6.4L engine, 7 qt / 6.6 L and 6.7L Turbo 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 2020 Ram 3500 use?

6.4L gas engine: SAE 0W-40 full synthetic, API SN, all operating temperatures (MS-12633); 6.7L Turbo Diesel engine, ambient above 0°F (-18°C): SAE 10W-30, API CK-4 required; Cummins CES 20081 products also acceptable (MS-10902); and 6.7L Turbo Diesel engine, ambient below 0°F (-18°C): SAE 5W-40 synthetic, API CK-4 required (MS-10902).

When is the first scheduled maintenance on the 2020 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 cabin air filter. Oil changes in between follow the oil-change indicator.

Where can I find the 2020 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.