2018 Jeep Wrangler Tire Size, Pressure & Specs
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: 245/75R17 (Sport), 255/70R18 (Sahara), or LT285/70R17C (Rubicon)
- Recommended Cold Tire Pressure: 37 psi (front) / 37 psi (rear)
- Bolt Pattern: 5x127 (5x5")
- Wheel Size: 17x7.5" (Sport, Rubicon) or 18x7.5" (Sahara)
- Load Index/Speed Rating: 112S (Sport), 113T (Sahara), 116/113Q (Rubicon)
- Spare Tire Size: Full-size matching spare
- TPMS Frequency: 315 MHz
Tire Sizes by Trim
| Trim | Standard Tire Size | Optional Tire Sizes |
|---|---|---|
| Sport/Sport S | 245/75R17 | 255/70R18 |
| Sahara | 255/70R18 | - |
| Rubicon | LT285/70R17C | - |
Recommended Replacement Tires
Choosing the right tires for your 2018 Wrangler depends on your driving habits and budget. Here are a few popular options:
- Goodyear Wrangler All-Terrain Adventure (OEM): A great all-around option for drivers who split time between the highway and the trail. Expect a quiet ride and good wet/dry traction.
- BFGoodrich All-Terrain T/A KO2: A legendary, more aggressive all-terrain tire perfect for serious off-roading. It offers excellent durability and traction in mud, snow, and rocks, but with a bit more road noise.
- Falken Wildpeak A/T3W: A popular budget-friendly alternative that provides a great balance of on-road comfort and off-road capability. It's known for its excellent performance in wet and snowy conditions.
Lug Nut Torque & Pattern
- Lug Nut Torque: 130 lb-ft (176 Nm)
- Tightening Pattern: Use a star or crisscross pattern to ensure the wheel is seated evenly against the hub. Tighten lug nuts in three stages, starting at 70 lb-ft, then 100 lb-ft, and finally to the full 130 lb-ft.
Common Tire Issues for this Vehicle
The 2018 Jeep Wrangler is built for tough conditions, but tire wear is a common issue, especially for owners who frequently off-road or have modified their suspension.
- Uneven Wear: Due to the solid front axle, Wranglers are prone to "cupping" or "scalloping" on the front tires if not rotated regularly. A 5-tire rotation (including the spare) every 5,000 miles is highly recommended to maximize tire life.
- TPMS Faults: The Tire Pressure Monitoring System (TPMS) can sometimes be sensitive, especially after airing down for off-roading and then airing back up. If the light stays on after reinflating to the correct pressure, a TPMS reset tool may be required.
- Vibrations: Aggressive mud-terrain tires can cause vibrations at highway speeds, which is often normal. However, if you experience new or excessive vibrations, it could indicate a tire is out of balance or has thrown a weight.
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More specs for the 2018 Jeep Wrangler
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
2018 Jeep Wrangler 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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