📋 2018 Ford F-150 Quick Specs
The 2018 Ford F-150 ships from the factory in multiple tire sizes depending on trim and wheel package. Always check the door-jamb tire-and-loading sticker for the exact size, load index, speed rating, and inflation pressure that came on your specific vehicle.
🏭 OEM Tire Sizes by Trim
| Trim / Package | Tire Size | Load Idx | Speed | Cold PSI |
|---|
| XL / XLT (base) | P265/70R17 | 113 | T | 35 psi |
| XLT / Lariat | P275/65R18 | 114 | T | 35 psi |
| Lariat / King Ranch | 275/65R20 | 116 | T | 35 psi |
| Platinum / Limited | 275/55R20 | 113 | H | 35 psi |
| Raptor | 315/70R17 | 121 | Q | 35 psi |
💡 Reading the sizeExample: 275/65R18 116T. 275 = width in mm. 65 = sidewall as % of width. R18 = 18 inch wheel. 116 = load index (2756 lb per tire). T = speed rating (118 mph max).
🔁 Alternate Sizes That Fit
These sizes maintain stock revs-per-mile within roughly 3% (the threshold where speedometer, ABS, and traction control stay accurate). Always verify load index meets or exceeds OEM.
- 265/70R17
- 275/70R17
- LT265/70R17
- 275/65R18
- 265/60R20
- 275/60R20
📈 Plus-Sizing Options
Plus sizing increases wheel diameter while keeping overall tire diameter the same. This preserves your speedometer accuracy and gearing but allows wider tread and a more aggressive look.
- Plus 1: 275/60R20 from 275/65R18 keeps revs-per-mile within 1%
- Plus 2: 285/55R22 on stock-suspension trucks (Limited package)
⚠ Watch the load indexIf you go below OEM load index, especially on trucks and SUVs, you risk a sidewall failure under load. Never drop more than 1–2 load index points from stock.
🔩 Wheel Specifications
| Bolt Pattern | 6x135mm |
| Offset | +44mm (stock 17/18) / +34mm (stock 20) |
| Center Bore | 87.1mm |
| Common Widths | 7.5J–9.0J |
Hub-centric rings are required if your aftermarket wheel has a larger center bore than 87.1mm. Lug-centric mounting causes vibration and uneven wear.
❓ Frequently Asked Questions
What is the stock tire size on a 2018 Ford F-150?
The factory tire size on a 2018 Ford F-150 varies by trim. Base trims use P265/70R17, while higher trims may run up to 315/70R17. Check your door-jamb sticker for the exact size on your vehicle.
Can I put bigger tires on my 2018 Ford F-150 without a lift?
Yes, within reason. Most 2018 Ford F-150 trims accept one size larger without rubbing, especially if you stick close to stock overall diameter. Plus 1: 275/60R20 from 275/65R18 keeps revs-per-mile within 1%
What is the bolt pattern on a 2018 Ford F-150?
6x135mm. This determines what aftermarket wheels physically bolt up. Center bore is 87.1mm, which matters for centering the wheel on the hub.
What tire pressure should I run in my 2018 Ford F-150?
The recommended cold inflation pressure is on the door-jamb sticker, usually 35 psi for most trims of the 2018 Ford F-150. Check pressures cold (before driving) once a month.
Do I need to match speed rating exactly?
You should at minimum match the speed rating your manufacturer specified. Going to a lower speed rating can void some tire warranties and is not recommended for highway driving, especially on heavier vehicles.
Can I run all-terrain tires on a 2018 Ford F-150?
Yes. Many 2018 Ford F-150 owners run all-terrains in OEM or one-size-up dimensions. Just confirm the load index meets the door-jamb spec and add a few psi if you go to LT-rated tires from P-metric.
Not sure what's right for your exact car?
Get a vehicle-specific report ranked by your year, make, and model in 30 seconds.
🔬 Run AI Diagnosis · $5.99 →