Ford F-150 tire sizes vary substantially across trims, drivetrains, wheel packages, and off-road configurations. In Ford’s 2026 U.S. specifications alone, factory fitment ranges from 245/70R17 all-season tires on the XL and XLT 4×2 to 275/70R18 all-terrain tires on the Tremor, LT315/70R17 tires on the Raptor, and an optional 37×12.50R17 Raptor package.
That range makes the F-150 model year and trim only the beginning of the fitment process. A 2026 XLT 4×2, XLT 4×4, XLT with FX4, and F-150 Tremor can all use different factory tire sizes even though they belong to the same model lineup.
Use this guide to understand how those F-150 configurations differ, when an LT tire is part of the factory setup, how current 17-, 18-, 20-, and 22-inch wheel packages compare, and what changes must be checked before moving away from the original size.
For the exact original fitment on an individual Ford truck, verify the driver-side tire information label or use the VIN lookup tool to identify the factory tire sizes assigned to that vehicle.
Table of Contents
- Ford F-150 Factory Tire Size Overview
- Factory Tire Sizes Used by Ford F-150 Trim
- What Replacement Tires Fit a Ford F-150?
- Does Every F-150 4×4 Use LT Tires?
- What Tire Load Rating Does an F-150 Need?
- What Is the Largest Factory Tire on a Ford F-150?
- Can You Fit 35-Inch Tires on a Stock F-150?
- Do Raptor Wheels and 315/70R17 Tires Fit a Regular F-150?
- How Do Common F-150 Tire Sizes Compare?
- How Do You Verify the Correct Tire Size for an F-150?
- Ford F-150 Tire Sizes by Model Year
Ford F-150 Factory Tire Size Overview
Quick Fact | Value |
Factory tire sizes | |
Factory wheel diameters | 17", 18", 20", 22" |
Smallest OEM tire diameter | 30.5" |
Largest OEM tire diameter | 37.0" |
LT factory fitments | |
Largest standard-line (non-Raptor) tire | 275/70R18 (Tremor) |
Factory flotation-size tire | 37×12.50R17 (Raptor 37 Package) |
Ford currently offers factory wheel diameters ranging from 17 to 22 inches, while overall tire diameter spans from 30.5 to 37 inches, depending on trim and package.
Factory Tire Sizes Used by Ford F-150 Trim
The Ford F-150 has used different factory tire sizes within the same trim as its generations, drivetrains, wheel packages, and equipment groups have changed. The table below shows documented OEM tire sizes installed on major U.S.-market F-150 trims across verified model years:
Ford F-150 Trim | Documented Factory Tire Sizes Used* |
XL | 235/70R17, 255/65R17, 235/75R17, 245/70R17, 265/70R17, 275/65R18, 275/55R20 |
STX | 255/65R17, 265/70R17, 265/60R18, 275/65R18, LT265/70R18, 275/60R20 |
XLT | 245/70R17, 265/70R17, 265/60R18, 275/65R18, LT265/70R18C, 275/55R20, 275/60R20 |
Lariat | 265/60R18, 275/65R18, 275/55R20, 275/60R20 |
King Ranch | 265/60R18, 275/65R18, 275/55R20, 275/60R20 |
Platinum | 275/55R20, 275/60R20 |
Limited | 275/45R22 |
Tremor | 275/70R18 |
Raptor | LT315/70R17, 37×12.50R17 |
* The sizes shown are documented factory fitments used on the listed U.S.-market F-150 trims in one or more verified model years. They are not interchangeable across every year or configuration. Original fitment can change with the model year, drivetrain, cab and bed configuration, equipment group, and factory package. Select your F-150 model year for year-specific fitment information, or enter the truck’s VIN into our OEM tire size lookup to retrieve the factory tire sizes associated with its original configuration. Always confirm the result against the tire information label in the driver-side door area.
Can Two F-150s From the Same Year Have Different Tire Sizes?
Yes. Two F-150s from the same model year can use different factory tires because drivetrain, trim, equipment group, and optional packages alter the original wheel-and-tire combination. The 2026 XLT provides a clear example:
- The XLT 4×2 uses 245/70R17 all-season tires as its standard fitment.
- An available XLT 4×2 combination uses 265/60R18 all-season tires.
- The XLT 4×4 uses 275/65R18 all-terrain tires.
- Ford’s order guide ties the LT265/70R18C option to the FX4 Off-Road Package on specified XLT equipment groups.
This means that searching only for “2026 Ford F-150 XLT tires” does not establish the exact factory size. The owner must still identify whether the truck is 4×2 or 4×4 and whether it carries an optional wheel or off-road package.
Explore the documented factory tire sizes used on the XLT below.
How Do F-150 Tire Sizes Differ by Trim?
The differences are measurable rather than simply “smaller” or “larger.” A 2026 XL or XLT 4×2 can use a 245/70R17, which has a nominal diameter of about 30.5 inches. The Tremor uses 275/70R18, measuring approximately 33.2 inches. The Raptor uses LT315/70R17, measuring approximately 34.4 inches, while the Raptor 37 Package moves to a nominal 37-inch tire.
Configuration | Wheel diameter | Tire example | Sidewall height | Nominal diameter |
XL/XLT 4×2 | 17 in | 245/70R17 | 6.75 in | 30.5 in |
STX/XLT/Lariat 4×4 | 18 in | 275/65R18 | 7.04 in | 32.1 in |
King Ranch/Platinum 4×4 | 20 in | 275/60R20 | 6.50 in | 33.0 in |
Tremor | 18 in | 275/70R18 | 7.58 in | 33.2 in |
Raptor | 17 in | LT315/70R17 | 8.68 in | 34.4 in |
This comparison shows why wheel diameter cannot be used as a substitute for tire diameter.
The Platinum’s 20-inch wheel is three inches larger than the Raptor’s 17-inch wheel, but the Raptor still carries the taller overall tire and substantially more sidewall. Ford also equips the Raptor with a different suspension arrangement, including Raptor-specific front components and a five-link coil-spring rear suspension rather than the standard F-150 leaf-spring layout.
A Raptor tire therefore cannot be treated as an automatic fit simply because both vehicles carry the F-150 name.
What Replacement Tires Fit a Ford F-150?
Ford's factory F-150 tire configurations fall into several distinct groups, each with different replacement considerations. Standard road-oriented sizes such as 245/70R17, larger all-terrain fitments like 275/65R18 and 275/70R18, LT-equipped FX4 models using LT265/70R18C, and the Raptor's LT315/70R17 should all be evaluated differently when selecting replacement tires. The sections below explain what to preserve when replacing each factory setup and where additional fitment or load-capacity checks become important.
What Replaces 245/70R17 Tires on an F-150 XL or XLT?
The direct replacement for the factory 245/70R17 is another 245/70R17 tire. Ford lists this size on the 2026 F-150 XL and XLT 4×2. Replacing worn tires with the same size preserves the original overall tire diameter and maintains compatibility with the factory wheel package.
F-150 owners who want to move from a 17-inch to an 18-inch wheel while maintaining nearly the same overall tire diameter may also evaluate the following size:
Tire Size | Difference vs. 245/70R17 | Within ±3% Guideline | Notes |
245/70R17 | Original | ✓ | Direct OEM replacement. |
265/60R18 | Approximately +0.1% | ✓ | Similar overall diameter on an 18-inch wheel. Requires compatible 18-inch wheels and complete fitment verification. |
Although 265/60R18 remains essentially diameter-neutral, it is not automatically interchangeable with every F-150 originally equipped with 245/70R17. Before changing sizes, verify:
- wheel diameter and width
- wheel offset
- tire load capacity
- manufacturer-published tire dimensions
- brake, suspension, and body clearance
Remaining within approximately ±3% of the factory diameter helps minimize changes to speedometer accuracy and drivetrain characteristics, but overall diameter alone does not confirm compatibility.
What Replaces 275/65R18 Tires on an F-150 STX, XLT or Lariat?
The safest tire replacement for the factory 275/65R18 is another 275/65R18 tire. Ford lists this size on current STX, XLT, and Lariat 4×4 configurations. Replacing worn tires with the same size preserves the factory overall tire diameter and wheel specification while allowing owners to choose different tread patterns for highway driving, all-terrain use, towing, or severe-snow service.
F-150 owners looking to move from an 18-inch to a 20-inch wheel while maintaining a similar overall tire diameter may also evaluate the following size:
Tire Size | Difference vs. 275/65R18 | Within ±3% Guideline | Notes |
275/65R18 | Original | ✓ | Direct OEM replacement. |
275/60R20 | Approximately +2.9% | ✓ | Similar overall diameter on a 20-inch wheel. Requires compatible 20-inch wheels and complete fitment verification. |
Although 275/60R20 remains within the commonly accepted ±3% diameter guideline, it is not a universal replacement for every F-150 originally equipped with 275/65R18. Before changing sizes, verify:
- compatible 20-inch wheels
- wheel width
- wheel offset
- tire load index
- brake clearance
- suspension and body clearance
Selecting another 275/65R18 remains the simplest way to preserve the original factory tire dimensions.
What Should Replace LT265/70R18C Tires on an F-150 XLT FX4?
The direct replacement for the factory LT265/70R18C is another LT265/70R18C tire with an equivalent or greater load capacity. Ford lists this size as an available factory fitment on selected 2026 XLT models equipped with the FX4 Off-Road Package.
Replacing an LT-designated factory tire involves more than matching overall diameter. The replacement should also preserve:
- LT construction
- equivalent or greater load capacity
- approved wheel compatibility
- overall tire dimensions appropriate for the factory wheel package
This guide does not recommend an alternative tire size for this configuration. Ford documents LT265/70R18C as the factory specification, and any change in tire size or construction should be evaluated against the vehicle's certification label, intended use, and the replacement tire manufacturer's published specifications.
What Replaces 275/70R18 Tires on an F-150 Tremor?
The direct replacement for the factory 275/70R18 is another 275/70R18 tire. Ford lists this size on the 2026 F-150 Tremor. It measures approximately 33.2 inches in overall diameter and provides approximately 7.6 inches of sidewall.
Replacing worn tires with another 275/70R18 preserves the factory tire dimensions and compatibility with the original wheel package.
This guide does not identify a universal alternative tire size for the Tremor. While other 18-inch tire sizes exist, compatibility depends on wheel specifications, manufacturer-measured tire dimensions, load requirements, and available vehicle clearance.
Owners considering a different tire size should compare it against the original 275/70R18 and verify:
- overall diameter
- wheel compatibility
- tire load capacity
- manufacturer dimensions
- suspension and body clearance
Remaining within approximately ±3% of the factory diameter helps minimize changes to vehicle calibration but does not guarantee fitment.
What Replacement Tires Fit an F-150 Raptor With LT315/70R17 Tires?
The direct replacement for the factory LT315/70R17 is another LT315/70R17 tire with an equivalent or greater load capacity. Ford lists this size as the standard tire on the 2026 F-150 Raptor. Its nominal overall diameter is approximately 34.4 inches.
Ford also offers an available 37×12.50R17 package on the Raptor. This should be treated as a separate factory configuration, not as a direct replacement for trucks originally equipped with LT315/70R17. Ford documents additional chassis specifications associated with the available 37-inch package, indicating that it represents a distinct factory configuration rather than a tire-only change.
This guide does not recommend an alternative replacement size for the standard Raptor. No other documented factory F-150 tire size matches the overall dimensions of LT315/70R17 while also representing the same factory configuration.
Owners considering a different tire size should compare it against the original LT315/70R17 and verify:
- wheel compatibility
- tire load capacity
- manufacturer dimensions
- suspension and body clearance
- speedometer and calibration effects when overall diameter changes
Does Every F-150 4×4 Use LT Tires?
No. Ford equips several current F-150 4×4 configurations with non-LT-labelled tire sizes.
Examples include:
- 265/70R17 on the XL 4×4
- 275/65R18 on STX, XLT, and Lariat 4×4 models
- 275/60R20 on King Ranch and Platinum 4×4 models
- 275/70R18 on the Tremor
Explicit LT or light-truck-commercial designations appear on more specific configurations, including LT265/70R18C on an available XLT FX4 setup and LT315/70R17 on the Raptor.
That means four-wheel drive alone is not a reason to replace a factory non-LT tire with an LT tire.
The decision should be tied to:
- The construction Ford originally specified
- The truck’s door-label capacity
- Actual payload and trailer use
- Road and work-site conditions
- The replacement tire’s size-specific capacity
- The pressure required by that replacement
A detailed explanation of LT construction belongs in the separate P-Metric vs. LT Tires guide. On this page, the important F-150-specific point is that Ford uses both constructions across the lineup.
What Tire Load Rating Does an F-150 Need?
The correct tire load rating depends on the specific F-150 configuration. Engine, cab style, drivetrain, wheelbase, factory equipment, and payload package all influence the load capacity the truck was designed to carry.
For the 2026 model year, Ford lists maximum payload ratings ranging from approximately 1,405 pounds for the Raptor to 2,440 pounds for a properly equipped 3.5L EcoBoost 4×2. Ford also notes that the actual payload of an individual truck is shown on the tire and loading information label located on the driver-side door area.
Because payload varies significantly across the F-150 lineup, there is no single tire load range that applies to every truck. Replacement tires should match or exceed the original load-carrying capability specified for that vehicle.
Before selecting replacement tires, verify:
- The original tire size and service description.
- The load index specified on the factory tire or door-jamb label.
- The front and rear GAWR (Gross Axle Weight Rating).
- The payload listed on the vehicle's tire and loading information label.
- The load capacity of the replacement tire in the selected size.
What Is the Largest Factory Tire on a Ford F-150?
The largest documented 2026 factory tire is the 37×12.50R17 all-terrain tire included with the Raptor 37 Package.
Below that, Ford uses:
- 275/60R20, approximately 33.0 inches, on selected standard-line configurations
- 275/70R18, approximately 33.2 inches, on Tremor
- LT315/70R17, approximately 34.4 inches, on the standard Raptor
- 37×12.50R17 on the Raptor 37 Package
These factory examples do not establish that a 34-, 35-, or 37-inch tire fits an XL, XLT, Lariat, King Ranch, or Platinum.
Tremor and Raptor have different suspension and clearance packages. The 37-inch Raptor configuration even receives application-specific damper and steering specifications.
For a standard-line F-150, Ford does not publish one universal aftermarket maximum. A defensible answer must therefore be tied to the exact generation, drivetrain, suspension, wheel width, offset, and tire model.
Can You Fit 35-Inch Tires on a Stock F-150?
Ford factory supports a 35-class tire on the Raptor through LT315/70R17, which measures approximately 34.4 inches nominally. Ford does not list an equivalent factory tire on the 2026 XL, STX, XLT, Lariat, King Ranch, or Platinum. A 35-inch tire on one of those standard-line trims must therefore be treated as a modified fitment rather than an OEM-equivalent replacement.
Before ordering it, the owner needs to establish:
- Model year and generation
- 4×2 or 4×4 configuration
- Existing suspension height
- Wheel diameter and width
- Wheel offset
- Manufacturer-measured tire diameter
- Manufacturer-measured section width
- Upper-control-arm clearance
- Front and rear clearance through full steering lock
- Clearance under suspension compression
- Diameter change from the placard-listed tire
- Whether tire-size calibration is supported
A leveling kit by itself does not prove complete fitment. It may increase front ride height without resolving inner control-arm clearance, the steering arc, or contact near the rear and front of the wheel opening.
Do Raptor Wheels and 315/70R17 Tires Fit a Regular F-150?
A complete Raptor take-off package should not be treated as a direct fit for a standard F-150 without separate verification. Ford pairs LT315/70R17 tires with:
- Raptor-specific 17-inch wheels
- A Raptor front suspension using different lower-control-arm construction
- FOX electronically controlled dampers
- A five-link coil-spring rear suspension
- Raptor-specific steering and track geometry
An XL, XLT, Lariat, King Ranch, or Platinum does not share that complete chassis configuration.
Even where the wheel can be mounted, the owner still needs to verify:
- Wheel offset
- Wheel width
- Inner suspension clearance
- Tire sweep at full steering lock
- Fender and liner clearance
- Overall diameter change
- TPMS compatibility
- Wheel load rating
The useful answer is therefore not simply “yes” or “no”; A Raptor take-off package may be adaptable to another F-150, but Ford does not document LT315/70R17 as a factory fitment for the standard-line trims. It must be evaluated as an aftermarket conversion.
How Do Common F-150 Tire Sizes Compare?
Not every factory F-150 tire size can be swapped directly for another one, even if both sizes appear somewhere in the lineup. Ford equips different trims with different overall tire diameters, wheel diameters, tire constructions, and suspension packages. For example, 245/70R17 and 265/60R18 maintain nearly the same overall diameter despite using different wheel sizes, while moving from 275/65R18 to the Tremor's 275/70R18 or the Raptor's LT315/70R17 increases overall diameter enough to affect fitment and potentially require additional clearance and calibration checks.
The comparisons below use documented Ford F-150 factory tire sizes to show which changes preserve similar dimensions, which exceed the commonly accepted direct-replacement range, and what should be verified before changing from one OEM size to another.
Can You Put 18-Inch Wheels on an F-150 With 17-Inch Wheels?
Yes. Ford’s current fitment list provides a nearly diameter-neutral example:
Size | Nominal diameter | Difference |
245/70R17 | 30.50 in | — |
265/60R18 | 30.52 in | Approximately 0.1% |
Both sizes appear in Ford’s 2026 XLT 4×2 fitment range. The 18-inch combination adds 20 mm of nominal section width and reduces sidewall height while retaining nearly the same overall diameter.
That makes it a genuine F-150 plus-sizing example.
The replacement still needs an approved wheel width, correct offset, sufficient load capacity, and complete brake and body clearance. Matching overall diameter alone does not verify the wheel.
Is 275/60R20 a Direct Replacement for 275/65R18?
No, the two sizes are close in overall diameter, but they are not dimensionally identical.
Size | Nominal diameter | Sidewall |
275/65R18 | 32.07 in | 7.04 in |
275/60R20 | 32.99 in | 6.50 in |
Moving to 275/60R20 on an F-150 adds approximately 0.92 inch of diameter, a change of about 2.9%, while removing roughly 0.54 inch of sidewall from each side of the wheel.
Ford lists both sizes within the 2026 F-150 range, but their trim and package applications differ. That does not make the 20-inch package automatically interchangeable on every truck originally equipped with 275/65R18.
Can You Replace 275/65R18 With 275/70R18 on an F-150?
No, the Tremor’s 275/70R18 is about 3.4% taller than 275/65R18, so it should not be presented as an automatic direct replacement.
Size | Nominal diameter |
275/65R18 | 32.07 in |
275/70R18 | 33.16 in |
The increase is approximately 1.09 inches in total diameter.
Ford assigns 275/70R18 specifically to the Tremor, while 275/65R18 is used on current STX, XLT, and Lariat 4×4 configurations.
Because the change exceeds the usual ±3% planning guideline, it should not be treated as a direct replacement without checking:
- Available vertical clearance
- Steering clearance
- Wheel width and offset
- Actual tire dimensions
- Speedometer and drivetrain calibration effects
How Does LT315/70R17 Compare With 275/65R18?
The LT315/70R17 Raptor tire is approximately 7.1% larger in diameter than 275/65R18.
Size | Nominal diameter |
275/65R18 | 32.07 in |
LT315/70R17 | 34.36 in |
The difference is approximately 2.29 inches in diameter and 40 mm in nominal width. This is well beyond the ±3% range commonly used for direct replacement planning. The conversion would affect:
- Tire clearance
- Effective axle gearing
- Indicated road speed
- Odometer accumulation
- Wheel position
- Steering clearance
- Assembly weight
That is why the Raptor tire should not be described as simply “a larger F-150 option” for other trims.
Will Larger Tires Affect an F-150 Speedometer?
Yes, as a taller tire causes the truck to travel farther with each wheel revolution, so actual road speed becomes higher than the uncorrected indicated speed.
The size comparison determines the scale of the effect:
- 245/70R17 to 265/60R18: about 0.1% diameter increase; effectively diameter-neutral
- 275/65R18 to 275/60R20: about 2.9% increase
- 275/65R18 to 275/70R18: about 3.4% increase
- 275/65R18 to LT315/70R17: about 7.1% increase
At an indicated 60 mph, a 7.1% increase corresponds to an actual speed of roughly 64.3 mph before calibration, assuming the original speedometer was exact.
The practical conclusion is clear:
- The 245/70R17-to-265/60R18 example is unlikely to create a meaningful diameter-related error.
- The 275/65R18-to-275/60R20 comparison remains near the usual ±3% boundary.
- The Tremor and Raptor sizes should not be transferred to another F-150 without a calibration and clearance review.
How Do You Verify the Correct Tire Size for an F-150?
Start with the configuration-specific information-not only “Ford F-150” and the model year. Confirm the following:
- Model year and trim: An XLT, Tremor, and Raptor do not share one tire baseline.
- Drivetrain: The 2026 XLT 4×2 and XLT 4×4 use different standard sizes.
- Factory package: FX4 can introduce an LT265/70R18C option on applicable XLT configurations.
- Placard-listed size: Use the individual truck’s tire label as the original-fitment reference.
- Original construction: Do not remove an LT or C-designated factory requirement without confirming replacement capacity.
- Wheel diameter and width: The same tire diameter can be produced around different wheel sizes.
- Overall diameter change: Compare the new tire against the placard-listed size, not against another F-150 trim.
- Clearance: Verify the actual width and diameter supplied by the tire manufacturer.
- Load requirement: Use the individual truck’s certification and payload labels.
- Calibration: Review it when the new diameter moves materially away from the original.
Ford F-150 Tire Sizes by Model Year
This guide covers the evolution of Ford F-150 tire fitment across generations. For the exact OEM tire sizes and factory wheel specifications for your truck, continue with the appropriate model year below: