2018 Ford Trucks F-250 Super Duty Tires

The 2018 Ford Trucks F-250 Super Duty uses five primary tire sizes: 275/65R18, 275/65R20, 275/70R18, 245/75R17, and 265/70R17. All of them are radial sizes, but they do not apply across every trim. The correct fitment depends on the exact sub-model, drivetrain, package, and wheel diameter on the truck.

The practical first step is checking the truck's trim and the wheels currently installed. This F-250 range spans 17-, 18-, and 20-inch applications, so selecting by appearance alone can lead to the wrong tire. If the truck has been changed from its original wheel package, verify the actual rim diameter and width before comparing tire options.

A 2018 Ford Trucks F-250 Super Duty can use 17-inch, 18-inch, or 20-inch rims depending on the sub-model and tire size. The primary fitments are tied to those diameters: 245/75R17 and 265/70R17 for 17-inch rims, 275/65R18 and 275/70R18 for 18-inch rims, and 275/65R20 for 20-inch rims.

That wide spread makes rim confirmation the most important fitment check on this truck. A buyer replacing tires on a Limited or Platinum will be looking at a different wheel diameter than someone shopping for an XL or XLT. Reading the size on the tire sidewall and measuring the installed wheel setup can prevent ordering the wrong diameter.

This truck has more than one tire size because the F-250 Super Duty was offered in multiple trims, 4x2 and 4x4 configurations, and special-package versions that did not all use the same wheel setup. Some models stay with one size, while others can use several. That is why the fitment range includes 17-, 18-, and 20-inch radial applications.

For a buyer, that means the truck's exact configuration matters more than the model name alone. A King Ranch, Lariat, XL, XLT, Limited, or Platinum can point to different sizes, and snow-plow-package versions widen the fitment picture further. Checking the actual sub-model and the installed wheels is the safest way to narrow the right tire before comparing products.

Start with the correct size for the truck's exact trim and wheel diameter, since the 2018 Ford Trucks F-250 Super Duty uses five different primary fitments. From there, compare the tire's radial construction details, load specification, rim-width range, and sidewall style. Those points matter more here than simply choosing by tread appearance.

A work truck, towing truck, or weekend-use truck may all need the same size but not necessarily the same specification. It also helps to confirm whether the truck still has its original wheel package, because changed wheels can affect width compatibility. Once size and wheel setup are verified, the remaining decision becomes much easier and more accurate.

The available sidewall styles for this application include RWL and RBL, depending on tire size. RWL is the raised white letter presentation used on several of the 17-inch and 18-inch BFGoodrich All-Terrain T/A KO2 sizes, while the 275/65R20 option uses an RBL black sidewall appearance.

That means sidewall style is tied to the size and wheel package rather than being a separate cosmetic choice across the whole truck line. If appearance matters, check the exact size first so the sidewall treatment matches expectations. Raised white letters create a more aggressive traditional truck look, while black sidewalls keep the presentation more understated.

The 265/70R17 fitment is available in more than one BFGoodrich All-Terrain T/A KO2 specification, both in radial construction with raised white letter sidewalls. The key distinction is load capacity and the pressure tied to that rating, not a change in basic size. Both versions use the same 17-inch rim diameter and the same general tire series.

That makes this a specification choice rather than a style choice. Compare the tire's load figure, the pressure associated with it, and the truck's actual use before deciding. A lightly used truck and a truck that regularly carries heavier demands may not need the same specification, even though the sidewall size marking looks identical.

A period-style approach on a 2018 Ford Trucks F-250 Super Duty usually means staying with the truck's correct original size format and wheel diameter rather than trying to give it a vintage tire treatment. Since this is a modern heavy-duty pickup with metric radial fitments, the most authentic-looking direction is to keep the proper 17-, 18-, or 20-inch radial size for the exact sub-model.

Appearance still varies within that framework. Raised white letter options create a more assertive truck look on several sizes, while the 275/65R20 application uses a black sidewall presentation. The main goal should be preserving the truck's intended stance and wheel relationship, especially if the truck is being kept close to its original trim-level character.

On a 2018 Ford Trucks F-250 Super Duty, construction is straightforward because the primary fitments are all radial. The visual differences come less from bias-ply versus radial and more from the exact metric size, wheel diameter, sidewall treatment, and the overall stance those choices create on the truck.

That means appearance is shaped by staying with the correct 17-, 18-, or 20-inch fitment for the specific trim and package. A truck wearing the wrong wheel diameter or an incorrect tire profile can look off even if the tread style seems appropriate. Matching the proper size first usually does more for authenticity than chasing cosmetic details alone.

Yes. Wheel changes, suspension lifts or lowering, offset changes, and other modifications can affect tire fitment on a 2018 Ford Trucks F-250 Super Duty even when the tire size is one of the accepted factory-style sizes. This matters more on a truck with several possible wheel diameters because the original fitment picture is already broad.

A modified truck should be checked for actual rim diameter, wheel width, and clearance at steering and suspension travel before replacement tires are selected. Even a correct-size tire can become the wrong choice if the installed wheels differ from the original package. Looking at the truck itself is more reliable than assuming every F-250 in the same year is configured alike.

Before driving on new tires, inspect the wheel condition, valve stems, inflation pressure, and the truck's basic alignment and suspension condition. On a 2018 Ford Trucks F-250 Super Duty, it also helps to confirm that the installed tire size matches the actual rim diameter and that there is adequate clearance at the front suspension and steering components.

A short initial road test is useful for checking vibration, rubbing, or any sign that the wheel-and-tire package is not working correctly together. Recheck pressure after the first drives and keep an eye on any uneven wear pattern. Those simple steps matter on a heavy-duty truck because load, steering effort, and ride height all influence how the tire settles in.

Tires on a 2018 Ford Trucks F-250 Super Duty should be inspected regularly, not just when tread looks low. A routine check should include pressure, visible cuts, punctures, sidewall damage, irregular wear, and any sign of slow air loss. On a truck that tows, hauls, or sees rougher service, those checks become even more important.

It is also smart to inspect before longer highway trips or heavier-duty use, especially if the truck sits for stretches between drives. Catching a pressure problem or a damaged sidewall early can prevent uneven wear and help protect the wheel. Consistent inspection is one of the easiest ways to get dependable service from the correct F-250 tire size.