2021 Ram 3500 Torque Specifications
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Quick reference
| Fastener | Torque (ft-lb / Nm) | Notes |
|---|---|---|
| Wheel Lug Nuts | 149 ft-lb / 202 Nm | For single rear wheel (SRW) models |
| Wheel Lug Nuts | 135 ft-lb / 183 Nm | For dual rear wheel (DRW) models |
| Oil Drain Plug | 37 ft-lb / 50 Nm | For 6.7L Cummins Diesel |
| Oil Drain Plug | 25 ft-lb / 34 Nm | For 6.4L Hemi V8 |
| Transmission Drain Plug | 30 ft-lb / 41 Nm | |
| Front Brake Caliper Bracket Bolts | 130 ft-lb / 176 Nm | |
| Front Brake Caliper Slide Pins | 55 ft-lb / 75 Nm | |
| Rear Brake Caliper Bracket Bolts | 130 ft-lb / 176 Nm | |
| Rear Brake Caliper Slide Pins | 55 ft-lb / 75 Nm | |
| Axle Nut | 185 ft-lb / 251 Nm | Plus an additional 90 degrees |
| Spark Plugs | 13 ft-lb / 18 Nm | For 6.4L Hemi V8 |
| Valve Cover Bolts | 8 ft-lb / 11 Nm | |
| Intake Manifold Bolts | 9 ft-lb / 12 Nm |
Wheel lug torque pattern
When tightening the wheel lug nuts on your 2021 Ram 3500, it is crucial to follow a star or cross pattern. This ensures that the wheel is seated evenly against the hub, preventing vibration and ensuring safety. Start by tightening one lug nut to half the recommended torque. Then, move to the lug nut directly across from it and do the same. Continue this pattern for all lug nuts, and then repeat the pattern, this time tightening each lug nut to the final recommended torque value.
Brake torque notes
Proper torque on brake components is a critical safety measure. The caliper bracket bolts, which secure the caliper to the knuckle, require a high torque value to prevent them from loosening. The caliper slide pins, which allow the caliper to move freely, require a lower torque value. Over-torquing the slide pins can cause them to bind, leading to uneven brake pad wear and reduced braking performance. Always use a calibrated torque wrench for these components.
Why torque matters
Torque is the rotational equivalent of force. Applying the correct amount of torque to a fastener is essential for ensuring that it is tight enough to not come loose, but not so tight that it damages the threads or the component it is securing. Over-torquing can stretch and weaken a bolt, while under-torquing can allow it to loosen over time due to vibration and other forces. Both scenarios can lead to component failure, which can have serious consequences, especially with critical components like wheels and brakes.
Disclaimer: The torque specifications provided in this article are for reference only. It is essential to verify these values in the official OEM service manual for your specific vehicle before performing any repairs. Critical fasteners should always be torqued to the manufacturer's exact specifications.
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More specs for the 2021 Ram 3500
Oil Capacity & Filter
Capacity, weight, filter PN, drain plug torque, change interval.
Fluid Type Specs
Engine oil, coolant, ATF, diff, brake, PS, DEF — with OEM spec numbers.
Coolant Capacity & Type
Total system capacity, OEM coolant spec, flush interval, bleed tips.
Transmission Fluid & Service
Trans model, fluid spec, capacity, filter PN, service interval.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
Tire Size & Pressure
OEM size, cold psi, bolt pattern, wheel size, TPMS.
Battery Size & Group
Group size, CCA, AGM/flooded, dimensions, reset note.
A/C Refrigerant & Oil
R-134a or R-1234yf, charge oz, PAG oil spec.
Bulb Sizes (Headlight, Tail, Fog)
Headlight, fog, tail, turn, reverse, interior.
Factory Maintenance Schedule
Service intervals by mileage, severe-duty notes, known issues.
Towing Capacity & Payload
Max tow, payload, GVWR/GCWR, hitch class by trim.
Fuse Box Diagram & Amperage
Fuse box locations, layout, amps, and what each fuse controls.
Serpentine Belt Routing & Length
Belt routing, length, rib count, OEM + aftermarket PNs.
Wheel Alignment Specifications
Camber, caster, toe ranges (front & rear), adjustability notes.
Paint Color Codes
All factory colors with paint codes, sticker location, touch-up tips.
Wiper Blade Sizes
Driver/passenger/rear blade size, attachment, OEM + cross-refs.
Spark Plug Type & Gap
Plug PN, gap, torque, interval by engine.
Transmission & Axle Gear Ratios
Trans gear ratios, axle ratios, RPO codes, tow vs MPG impact.
Key Fob Programming
DIY programming steps, FCC ID, fob PN, battery, transponder.
Same spec — other model years
Maintenance & repair guides
2021 Ram 3500 Maintenance Schedule →
Available maintenance guidance; confirm the manufacturer schedule.
Repair planning references →
Plan the scope of work; detailed procedures need configuration-matched evidence.
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Values can vary by engine, trim and build date; check your VIN-specific service information. Updated 2026-08-01.