2020 Ram 3500 Tire Size & Pressure Guide
AI-generated reference. Always verify torque values, fluid capacities, intervals, and procedures against the manufacturer's service manual or OEM repair information before performing work. Repairius is not liable for damage from acting on this content without verification.
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Quick answer
- OEM Tire Size: LT275/70R18E
- Recommended Cold Tire Pressure (Placard): 60 psi (Front), 80 psi (Rear) for single rear wheel (SRW) models. Varies for dual rear wheel (DRW).
- Bolt Pattern: 8x200
- Wheel Size: 18x8.0
- Load Index/Speed Rating: 125/122S
- Spare Tire Size: Full-size spare, typically LT275/70R18E
- TPMS Frequency: 433 MHz
Tire Sizes by Trim
| Trim | Standard Tire | Optional Tires |
|---|---|---|
| Tradesman | LT275/70R18E BSW All-Season | LT285/60R20E OWL On/Off-Road |
| Big Horn | LT275/70R18E BSW All-Season | LT285/60R20E OWL On/Off-Road |
| Laramie | LT275/70R18E BSW All-Season | LT285/60R20E OWL On/Off-Road |
| Longhorn | LT275/70R18E OWL On/Off-Road | LT285/60R20E OWL On/Off-Road |
| Limited | LT285/60R20E OWL On/Off-Road | N/A |
Recommended replacement tires
- $$$: Michelin Defender LTX M/S
- $$: BFGoodrich All-Terrain T/A KO2
- $: Firestone Transforce HT
When to inflate to max load psi
For heavy-duty trucks like the Ram 3500, the recommended cold tire pressure on the door placard is for normal, unloaded driving. When towing a heavy trailer or hauling a significant load in the bed, you should inflate the rear tires to the maximum pressure indicated on the tire's sidewall. This is often 80 psi for Load Range E tires. This ensures the tire can support the added weight without excessive heat buildup or sidewall flex, which can lead to a blowout.
Lug nut torque & pattern
- Torque: 130-150 lb-ft
- Pattern: Use a star or crisscross pattern to ensure the wheel is seated evenly against the hub.
Common tire issues for this vehicle
Given its use as a heavy-duty hauler, the 2020 Ram 3500 can experience rapid tire wear, especially on the rear axle when frequently towing or hauling. It's crucial to rotate the tires every 5,000-7,500 miles and maintain proper alignment to maximize tire life.
Need new tires? Find a trusted shop on Repairius.
More specs for the 2020 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.
Torque Specifications
Lug nuts, drain plug, caliper, axle nut, plug, key fasteners.
Brake Pad & Rotor Specs
Pad PNs, rotor size, min thickness, caliper torque.
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
2020 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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