2018 Toyota Trucks 4Runner Tires

The 2018 Toyota Trucks 4Runner uses two tire sizes: 245/60R20 and 265/70R17. The 245/60R20 size is used on the Limited, while 265/70R17 is used on the SR5, SR5 Premium, TRD Off-Road, TRD Off-Road Premium, and TRD Pro. Both are radial tire fitments, but they are tied to different wheel diameters and trim-specific setups.

Choosing the right tire starts with identifying the exact sub-model and confirming the wheel diameter already on the vehicle. A 20-inch Limited setup and a 17-inch SR5 or TRD setup are not the same fitment, even though the overall tire diameters are close. If the 4Runner has aftermarket wheels, verify the actual wheel size before selecting a replacement tire.

A 2018 Toyota Trucks 4Runner uses either a 17-inch or 20-inch rim, depending on sub-model. The Limited uses the 245/60R20 tire on a 20-inch rim, while the SR5, SR5 Premium, TRD Off-Road, TRD Off-Road Premium, and TRD Pro use 265/70R17 on a 17-inch rim. The tire size and rim diameter are linked and should be treated as a matched fitment.

Rim diameter is the first thing to verify before ordering tires because a 17-inch tire cannot be mounted on a 20-inch wheel, and the reverse is equally true. It is also worth checking wheel width if the vehicle has been changed from stock. That extra step helps avoid fitment issues when comparing replacement tires for a modified 4Runner.

No, 2018 Toyota Trucks 4Runner sub-models do not all use the same tire size. The Limited uses 245/60R20, while the SR5, SR5 Premium, TRD Off-Road, TRD Off-Road Premium, and TRD Pro use 265/70R17. That means tire selection is trim-specific, even though every fitment in this model year uses radial construction.

That distinction matters because the size difference also reflects a different wheel package. Buyers should match the tire to the actual sub-model and current wheels rather than assuming every 2018 4Runner uses the same replacement size. A quick check of the tire sidewall and wheel diameter is especially helpful if the vehicle was bought used or has had wheel changes.

Start with the correct size for the exact 2018 Toyota Trucks 4Runner sub-model. The Limited uses 245/60R20, while the other covered trims use 265/70R17. After size, the next considerations are radial construction, wheel compatibility, and how the vehicle is actually used, whether that means mostly paved-road driving or a more rugged mix of driving conditions.

It also helps to compare practical specifications such as rim-width compatibility, load capacity, and tire weight when those details vary between products. Appearance can matter too, especially if a raised white letter sidewall is part of the look you want. A careful match between size, wheel setup, and intended use usually leads to a better choice than selecting by appearance alone.

The product selection shown for the 2018 Toyota Trucks 4Runner includes raised white letter sidewalls in 265/70R17. That sidewall style appears on the BFGoodrich All-Terrain T/A KO2 options available for the 17-inch fitment. Sidewall treatment affects the vehicle’s visual presentation even when the tire size and basic construction remain the same.

A raised white letter tire can give a more traditional SUV or off-road appearance than a plain black sidewall, so it is worth deciding how visible lettering fits the look of the vehicle. Appearance should still come after correct size and wheel fitment. On a 4Runner that has seen wheel changes, confirm the actual tire and wheel combination before choosing by sidewall style.

The product range shown here for the 2018 Toyota Trucks 4Runner includes BFGoodrich in the 265/70R17 size. Those options are from the All-Terrain T/A KO2 series and use radial construction with raised white letter sidewalls. Brand choice on this page is narrower than the trim-level fitment question, so size and wheel diameter still come first.

Once the correct trim-specific size is confirmed, brand becomes part of the comparison alongside load specification, weight, rim-width compatibility, and overall tire character. That matters most on the 17-inch 4Runner trims where multiple KO2 versions are available. Comparing specifications within the correct size is more useful than choosing a tire by brand name alone.

Correct tire fitment matters on a 2018 Toyota Trucks 4Runner because the model uses two different size and wheel combinations depending on trim. The Limited uses 245/60R20, while the SR5 and TRD-based models use 265/70R17. Staying with the proper fitment helps preserve the intended stance, wheel relationship, and overall appearance of the vehicle.

Appearance is only part of the equation, though. The right size also supports proper wheel matching and helps avoid unnecessary clearance or mounting problems. If maintaining an authentic trim-specific look matters, confirm the current wheels against the original trim before replacing tires. That is especially useful on used vehicles that may no longer be wearing their original wheel package.

On a 2018 Toyota Trucks 4Runner, construction changes are less about bias-ply versus radial and more about selecting the correct modern radial size for the trim. Both factory-style fitments here are radial, so the visual difference usually comes from wheel diameter, tire profile, and sidewall treatment rather than a switch in basic construction type.

A 20-inch Limited setup presents the vehicle differently than a 17-inch SR5 or TRD setup, even with similar overall tire diameter. Sidewall style can also shape the look, especially when raised white letters are part of the package. For an appearance-focused project, matching the proper trim-level size and wheel combination matters more than chasing a different construction format.

Yes, modifications can affect tire fitment on a 2018 Toyota Trucks 4Runner. Wheel changes, suspension lifts, lowering, offset differences, and body alterations can all change how a tire fits, even when the tire size matches a stock trim specification. That is especially important on a vehicle like the 4Runner, where sub-models already start with either 17-inch or 20-inch wheel fitments.

A modified vehicle should be checked for actual wheel diameter and width before replacement tires are chosen. Clearance at the fenders, suspension, and steering angles also matters once the original setup has changed. Even a correct stock-size tire may need closer evaluation when the wheel package or suspension geometry no longer matches the factory-style arrangement.

Before driving a 2018 Toyota Trucks 4Runner on new tires, inspect the wheels for damage, confirm the tire size matches the trim and wheel diameter, and make sure the tires are mounted and inflated correctly. It is also smart to look at the suspension and steering components, especially if the vehicle sees rough use or has been driven off road.

A short follow-up check after initial driving is worthwhile to confirm there is no rubbing, vibration, or uneven clearance from lock to lock. Tire pressure should be monitored closely during the first stretch of use, and lug hardware should be checked to the vehicle’s proper specification. Those simple steps help catch installation or fitment issues before they turn into larger problems.

Tires on a 2018 Toyota Trucks 4Runner should be maintained with regular pressure checks, visual inspections, and attention to tread wear across all four positions. Look for cracking, cuts, bulges, punctures, or signs of uneven wear that could point to alignment or suspension issues. That routine applies whether the vehicle runs the Limited’s 20-inch fitment or the 17-inch setup used on other trims.

Vehicles that spend time parked for long periods still need inspection because age and storage conditions can affect tire condition even when tread looks good. Rotating tires at appropriate intervals also helps keep wear more even, particularly on a heavier SUV. Any persistent air loss, vibration, or unusual wear pattern deserves a closer look before longer road use.