The GMC Sierra and Chevy Silverado share the same platform but attract buyers with different priorities — Sierra owners often favor refinement alongside capability. The AT4 and AT4X trims bring factory off-road hardware that demands tires to match.
Common GMC Sierra tire sizes
Sierra 1500 (2019-current): LT265/65R18 (base, SLE), LT275/55R20 (SLT, AT4), LT275/50R22 (Denali), LT275/70R18 (AT4X).
Sierra 2500HD: LT265/70R18 (SLE, SLT), LT275/65R18 (AT4, Denali HD).
The AT4 and AT4X use factory-fitted Goodyear Wrangler Territory AT tires — a strong OEM all-terrain choice that many owners upgrade.
Best highway and touring tires
Michelin Defender LTX M/S: the benchmark highway LT tire for Sierra owners who primarily haul and tow on paved roads. Available in most Sierra sizes including Load Range E for 2500HD.
Continental TerrainContact H/T: excellent wet weather performance for paved-road Sierra use — particularly good for Sierra Denali owners who want quiet refinement with confident wet traction.
Goodyear Assurance MaxLife (LT-rated): for high-mileage Sierra drivers who want maximum tread life — available in many Sierra LT sizes.
Best all-terrain tires
Toyo Open Country AT3: a popular OEM upgrade for AT4 owners — quieter on the highway than the BFG KO2 with similar off-road capability. Available in LT275/55R20 and LT275/70R18.
BF Goodrich KO2: the traditional benchmark. Best for AT4X and trail-focused builds where off-road grip takes priority over highway noise.
Falken Wildpeak AT3W: a strong value option with 3PMSF winter rating — particularly good for Sierra owners in areas with occasional snow and ice.
Best tires — Sierra 2500HD towing
The Sierra 2500HD needs Load Range E tires for proper towing and payload capacity.
Michelin Defender LTX M/S (LT, Load Range E): the long-wear highway choice for 2500HD owners who do heavy regular towing.
BF Goodrich KO2 (LT, Load Range E): for 2500HD owners who combine heavy towing with off-road or job site use — the added sidewall protection matters on unimproved roads.
Frequently asked
What tires come on the GMC Sierra AT4 from the factory?
The Sierra AT4 1500 typically comes with Goodyear Wrangler Territory AT in LT275/55R20 — a capable all-terrain tire. The AT4X uses the same size with a more aggressive compound suited to its off-road focus.
How much do GMC Sierra tires cost?
Common Sierra 1500 sizes (LT265/65R18, LT275/55R20) run $150–230 per tire for quality all-terrain. Sierra 2500HD in Load Range E: $170–260 per tire. A set of four installed: $600–920 for 1500 sizes.
Can I upgrade to 35-inch tires on a stock Sierra?
The Sierra 1500 (especially AT4) can often run 285/70R17 (equivalent to a near-35-inch) with minor trimming. True 35-inch tires require a leveling kit or lift on most Sierra configurations to avoid fender contact.
Keep reading
Last updated 2026-06-27. General guidance only — confirm specifics with a local shop for your exact vehicle.