Ford F-250 Tire Size Chart: Factory Sizes by Year, Wheel and Trim
Quick answer: on a 2017–2026 Ford F-250 Super Duty, the factory tire size depends on the wheel. The XL uses LT245/75R17 on 17-inch wheels. Many XLT, Lariat and King Ranch trucks use LT275/70R18 on 18s. Higher trims use LT275/65R20 on 20s. The Tremor Off-Road Package uses 35-inch LT285/75R18 tires. All factory F-250 tires are Load Range E light-truck (LT) tires. The exact size and pressure for your truck are on the tire placard on the driver door pillar.
Ford F-250 Tire Size Chart (Factory Sizes)
| Years | Wheel | Factory tire size | Typical trims / notes |
|---|---|---|---|
| 2017–2026 | 17 in | LT245/75R17E | XL (base steel wheels) |
| 2017–2026 | 18 in | LT275/70R18E | XL 4×4, XLT, Lariat, King Ranch |
| 2017–2026 | 20 in | LT275/65R20E | Lariat, King Ranch, Platinum, Limited (20 in wheel packages) |
| 2020–2026 | 18 in | LT285/75R18E (about 35 in tall) | Tremor Off-Road Package |
| 2011–2016 | 17 / 18 / 20 in | LT245/75R17E, LT275/70R18E, LT275/65R20E | Same three main sizes as 2017+ (check your door placard; some trims had other options) |
Sources: Ford 2019 F-Series Super Duty Supplemental Order Guide (media.ford.com) and Ford 2020 Super Duty Order Guide (Tremor: LT285/75R18E A/T), checked against tire maker fitment listings for 2015 and 2024 F-250s. Earlier years are not listed here because the sources we found disagree. For a pre-2011 truck, read your door placard.
Fixes to the old version of this page: the Tremor does not use 35×12.50R18 or 35×12.50R20 tires (Ford lists LT285/75R18). LT275/65R20 is a factory size, but 295/65R20 is not a factory F-250 size.
How to Find Your F-250’s Exact Tire Size
- Door placard: the Tire and Loading Information label on the driver door pillar gives the original size and the cold tire pressures, front and rear.
- Tire sidewall: the size (for example LT275/70R18 125/122S) and load range (E).
- Window sticker or VIN build sheet: lists the wheel and tire package.
- Tire fitment lookup: Tire Rack F-250 fitment by year and trim.
Reading an F-250 Tire Size
In LT275/70R18 125/122S: LT = light truck, 275 = width in mm, 70 = sidewall height as a percentage of the width, R = radial, 18 = wheel diameter in inches, 125/122 = load index for single and dual use, and S = speed rating. Super Duty trucks need LT, Load Range E tires. Do not fit P-metric passenger tires.
Approximate Tire Diameter by Size
Calculated from the size: diameter = wheel + 2 x (width x aspect ratio / 25.4). Real tires vary by brand and tread.
| Size | Approx. diameter | Approx. width |
|---|---|---|
| LT245/75R17 | 31.5 in | 9.6 in |
| LT275/70R18 | 33.2 in | 10.8 in |
| LT275/65R20 | 34.1 in | 10.8 in |
| LT285/75R18 | 34.8 in (sold as 35 in) | 11.2 in |
Upgrading Tire Size on an F-250
- Going taller changes the speedometer and the shift points. Recalibrate with a dealer or a programmer after a big size change.
- Wider tires and aftermarket wheel offsets are what usually cause rubbing at full lock. Check the bolt pattern (8 x 170 mm on 1999+ Super Duty) on the Ford bolt pattern chart.
- A leveling kit is the most common way to fit 35-inch tires. See our best leveling kit for the F-250 Super Duty guide.
- Keep Load Range E (or higher) and the load index on your placard, especially if you tow. See the 2023 F-250 towing capacity chart.
- After you mount the wheels, torque the lug nuts to spec: F-250 lug nut torque specs.
Comparing an F-250 with an F-350? The DRW F-350 uses different wheels. See the difference between the F-250 and F-350.
Frequently Asked Questions
What size tires come on a Ford F-250?
2017–2026 F-250: LT245/75R17 (XL, 17-inch wheels), LT275/70R18 (18-inch wheels), LT275/65R20 (20-inch wheels) and LT285/75R18 on the Tremor package.
What size tires are on the F-250 Tremor?
Ford lists LT285/75R18E all-terrain tires (about 35 inches tall) on 18-inch wheels for the Super Duty Tremor Off-Road Package.
Where do I find my F-250 tire size and pressure?
On the Tire and Loading Information placard on the driver door pillar. It lists the original size and the cold pressures for the front and rear tires.
Can I put passenger tires on an F-250?
No. The F-250 comes with LT Load Range E tires. Replacements should match or exceed the load index on the door placard.
How big is an LT275/70R18 tire?
About 33.2 inches tall and 10.8 inches wide, calculated from the size. Exact numbers vary by brand.
What is the F-250 bolt pattern?
1999 and newer F-250 Super Duty trucks use 8 x 170 mm. Always check the wheel fitment for your year before buying.
