2018 Chevrolet Trucks Tire Fitment Guide

2018 Chevrolet Trucks vehicles use 22 sizes across 9 models: 265/70R16, 255/65R17, 265/60R18, and 265/65R17 for Colorado; 225/65R17, 225/60R18, and 235/50R19 for Equinox; 275/55R20, 285/45R22, 255/70R17, 265/70R17, and 265/65R18 for Silverado 1500; 265/60R20, 245/75R17, 265/70R17, 265/70R18, and 275/65R18 for Silverado 2500 HD; 265/70R18 and 235/80R17 for Silverado 3500 HD; 265/65R18, 275/55R20, and 285/45R22 for Suburban; 265/65R18, 275/55R20, 285/45R22, 265/60R17, 255/70R17, and 265/70R17 for Tahoe; 255/55R20 and 255/65R18 for Traverse; and 205/70R16 plus 215/55R18 for Trax.

That spread covers 16-, 17-, 18-, 19-, 20-, and 22-inch rim diameters, so year and make alone are not enough to select a tire. Start by identifying the exact model, then confirm the wheel diameter on the vehicle, and only then narrow to the correct size. A few sizes are shared among related full-size trucks and SUVs, but many are model-specific.

On a 2018 Chevrolet Trucks tire, 265/70R17 is a metric radial size. The 265 is the nominal section width in millimeters, 70 is the aspect ratio, the R means radial construction, and 17 is the wheel diameter in inches. Within the 2018 Chevrolet Trucks range, this size appears on Silverado 1500, Silverado 2500 HD, and Tahoe.

The important point is that a shared size does not automatically mean every product version is the same. In 265/70R17, BFGoodrich offers more than one load-capacity version, both with an S speed rating, so a half-ton truck and a heavier-duty truck may need different product specifications even when the sidewall size marking matches.

No, 2018 Chevrolet Trucks models do not use the same tire size. Colorado, Equinox, Traverse, and Trax each have their own model-specific fitments, while Silverado 1500, Suburban, and Tahoe share some full-size SUV and pickup sizes such as 275/55R20, 285/45R22, and 265/65R18. Silverado 2500 HD and Silverado 3500 HD also share one heavy-duty size, 265/70R18.

That means model identification is the first practical step, especially if you are shopping by year and make only. Chevrolet used overlapping sizes on related truck platforms, but there is no one universal 2018 Chevrolet Trucks fitment. Checking the door placard, the current tire sidewall, and the wheel diameter will usually settle the question quickly.

2018 Chevrolet Trucks products shown here use either RWL or RBL sidewall styling, depending on size. BFGoodrich offers 265/70R16, 255/65R17, 265/70R17, 245/75R17, and 275/65R18 in RWL form, while 225/65R17 and 235/80R17 appear with RBL sidewalls. All of them are radial truck-oriented products rather than whitewall or vintage bias-ply designs.

For a 2018 vehicle, sidewall style is usually more about appearance than authenticity in the collector-car sense. RWL gives a more overt all-terrain look, while RBL is visually quieter. If maintaining a factory-like appearance matters, compare the replacement sidewall style to the tires currently on the truck or SUV before choosing.

BFGoodrich is the brand covering the 2018 Chevrolet Trucks sizes that have products here. Its available applications include 265/70R16, 255/65R17, 225/65R17, 265/70R17, 245/75R17, 275/65R18, and 235/80R17, all in the All-Terrain T/A KO2 radial line. Those fitments center on truck and SUV use, especially where an all-terrain tread and stronger load capability are priorities.

Because product coverage is concentrated in specific truck-oriented sizes, the real task is not choosing among many brands but confirming whether your exact 2018 Chevrolet Trucks model and wheel package falls into one of those supported applications. If it does, you can then compare sidewall style, load version, and wheel-width compatibility within that BFGoodrich range.

The two 265/70R17 options for 2018 Chevrolet Trucks are both BFGoodrich All-Terrain T/A KO2 radials with RWL sidewalls and S speed ratings up to 112 mph, but they differ in load capacity, inflation pressure, and weight. One version carries 2,470 lbs at 50 psi and weighs 45.7 lbs, while the other carries 3,195 lbs at 80 psi and weighs 53.5 lbs. Both fit 17-inch rims with a 7.0- to 9.0-inch width range.

That difference matters most when the same sidewall size is used on trucks with very different duty cycles. A Tahoe or Silverado 1500 owner may not need the heavier specification that a heavier-duty application can justify. Matching the tire's load version to the vehicle's intended use is more important here than assuming every 265/70R17 is interchangeable in practice.

Where rim-width guidance appears for 2018 Chevrolet Trucks products, it is size-specific. 265/70R16 fits 7.0 to 8.5 inches, 255/65R17 and 265/70R17 fit 7.0 to 9.0 inches, 225/65R17 fits 6.0 to 8.0 inches, 245/75R17 fits 6.5 to 7.5 inches, 235/80R17 fits 6.0 to 7.5 inches, and 275/65R18 fits 7.5 to 9.5 inches. Each of those ranges applies to its own size and should not be transferred to another tire size.

The practical takeaway is to confirm both the tire size and the wheel width before mounting, especially on trucks that may have had wheel changes over time. Even when two sizes share the same rim diameter, their acceptable wheel-width ranges can differ. Verifying the actual wheel prevents unnecessary mounting issues and helps preserve correct tire shape and behavior.

The 2018 Chevrolet Trucks products here are radial truck tires with standard modern size markings and no tube-type designation in the size field. That points to tubeless use on the correct modern wheels, which matches what would normally be expected for 2018 Chevrolet Trucks applications. The fitments covered here do not reflect antique tube-type constructions.

Even so, wheel condition still matters. A tubeless tire depends on a sound bead seat and a healthy valve stem, so older or damaged wheels should be inspected before mounting. If your truck or SUV has aftermarket wheels, confirm that their condition and construction are suitable for the tire size you plan to use.

Original 2018 Chevrolet Trucks wheels can only be used with tire sizes that match their rim diameter and fall within the proper wheel-width range for that specific size. This year spans 16-, 17-, 18-, 19-, 20-, and 22-inch fitments, so there is no single factory wheel that works across the entire make. Even within one model, different wheel packages were used.

A Tahoe on 20-inch wheels cannot simply take a 17-inch size, and a Colorado on a 16-inch wheel cannot use an 18-inch fitment without changing wheels. The safest approach is to verify the wheel diameter stamped on the wheel or confirm the factory wheel package, then match the tire to that hardware rather than to the broader model family.

A stored 2018 Chevrolet Trucks should be kept out of direct sunlight, away from electric motors or welders that generate ozone, and parked on a clean, dry surface. Maintaining correct inflation pressure helps the tires keep their shape during idle periods, and moving the vehicle occasionally can reduce flat-spotting. Because these are radial applications, they generally tolerate storage better than older bias-ply designs, but they still age from time and environment.

Longer storage periods call for a little more planning on larger trucks and SUVs because their weight puts more static load on the tires. If the vehicle will sit for months, occasional repositioning or using stands as part of a broader storage plan can help. The goal is to control heat, UV, ozone, and prolonged stress rather than simply keeping the vehicle parked indoors.

Tires on a 2018 Chevrolet Trucks should be evaluated by age as much as by tread depth. A common collector and low-mileage rule is to inspect them closely once they reach the 5- to 7-year range and to treat around 10 years as a strong replacement consideration regardless of remaining tread. The DOT date code on the sidewall identifies the tire's week and year of manufacture.

That matters because many trucks and SUVs accumulate fewer miles than their tires' tread life would suggest, especially second vehicles or recreational-use vehicles. A tire can look serviceable at a glance and still be aging internally. Checking the date code gives you a clearer picture than mileage alone when deciding whether the tires are still appropriate for continued road use.

Tires on a 2018 Chevrolet Trucks should be inspected before every drive and again before any longer highway trip or towing outing. Look for cuts, bulges, punctures, irregular wear, sidewall cracking, and signs of pressure loss. Heavy-duty sizes and all-terrain patterns also deserve a close look for embedded debris and tread damage after rougher use.

Frequent inspection is especially important on vehicles that see intermittent use, because slow leaks and age cracking can develop while the truck is parked. Checking pressure with a gauge, not by appearance, is part of that routine. On any vehicle that has spent time in storage, add a quick spare-tire inspection so you are not relying on an aged or underinflated backup.

Yes, the 2018 Chevrolet Trucks products here are modern radial tires intended for road use, and the speed ratings shown support normal highway driving when the tires are properly inflated and matched to the vehicle. Most of these products carry an S rating, which corresponds to 112 mph, while the 275/65R18 example carries an R rating, which corresponds to 106 mph. Those ceilings are well above ordinary U.S. highway speeds.

The larger concern is usually not whether the tire can handle legal highway travel, but whether the tire's load specification suits the truck or SUV and whether the vehicle itself is in sound mechanical condition. Suspension wear, brake condition, alignment, and age-related maintenance all matter. A correctly sized, correctly loaded radial tire is only one part of a safe highway setup.

Inflation pressure for 2018 Chevrolet Trucks tires should start with the vehicle manufacturer's recommendation for the exact model and tire size, then be checked against the tire's own rated capacity and pressure ceiling. The products here show examples such as 2,470 lbs at 50 psi for one 265/70R17, 3,195 lbs at 80 psi for another 265/70R17 and for 265/70R16 or 245/75R17, 2,600 lbs at 65 psi for 255/65R17, 2,150 lbs at 65 psi for 225/65R17, 3,415 lbs at 80 psi for 275/65R18, and 3,085 lbs at 80 psi for 235/80R17.

Those figures are not blanket inflation instructions for every 2018 Chevrolet Trucks application. They show the pressure associated with maximum load for a specific tire, not necessarily the pressure the vehicle should run every day. Use the door placard or owner's manual for baseline vehicle pressure, then make sure the chosen tire's rating supports the duty you expect from it.

Before a longer drive in a 2018 Chevrolet Trucks, inspect all four tires and the spare for cracking, cuts, punctures, bulges, uneven wear, and proper inflation. Confirm that the tire size on the vehicle matches the wheel diameter and that lug hardware, valve stems, and caps are all in good condition. On heavier Silverado applications, it is also wise to think about the load the trip will place on the tires, not just their overall tread condition.

Tires are only one part of a sound pre-trip check on a modern truck or SUV. Brakes, fluid levels, steering response, suspension condition, and lighting should also be reviewed before committing to a long run. Doing that work ahead of time is especially helpful when the vehicle is used intermittently, because small problems often show up after sitting rather than after daily use.