The GMC Sierra 2500HD is a serious work truck — GVWR of 10,000 lbs or more, available with a 6.6L Duramax diesel or 6.6L V8 gas engine, and rated to tow 18,500 lbs. Tires for the 2500HD need to match that capability: high load ratings, durability under towing and payload stress, and the ability to handle both jobsite duty and highway commutes.
GMC Sierra 2500HD tire sizes
The Sierra 2500HD uses different sizes depending on model year and trim. Common sizes include LT265/70R18 on standard 18-inch wheels, LT275/65R18 on some configurations, and LT285/60R20 on 20-inch wheels. The LT prefix indicates light truck construction — critical for a 2500HD application. Never replace with P-metric tires.
Always verify on the driver door sticker. The 2500HD is a Class 2 heavy-duty truck. Load range E (10-ply) tires are often the OEM or preferred replacement for towing and payload applications.
Best highway all-season tires for the Sierra 2500HD
Michelin LTX A/T2 (LT265/70R18, LT285/60R20) — the benchmark all-terrain-capable highway tire for heavy-duty trucks. Quiet on pavement, good all-season wet and snow performance, available in Load Range E. Long tread life for the segment.
Goodyear Wrangler Fortitude HT (LT265/70R18) — highway touring all-season for 2500HD owners who spend most miles on pavement. Load Range E available. Very quiet, smooth, and long-lasting for a truck tire.
BFGoodrich Commercial T/A All-Season 2 (LT265/70R18) — OEM-style highway commercial truck tire. High load rating, good wear life, solid all-season performance. Built for the duty cycle the 2500HD faces.
Best all-terrain tires for the Sierra 2500HD
BFGoodrich All-Terrain T/A KO2 (LT265/70R18, LT285/60R20) — the most popular all-terrain for heavy-duty trucks. Load Range E available, excellent off-road capability, proven durability under towing stress, and better highway manners than most mud-terrains. One of the top sellers in this segment.
Toyo Open Country AT III (LT275/65R18, LT285/60R20) — strong all-terrain competitor to the KO2. Very quiet for an all-terrain, good wet traction, and excellent longevity. Available in Load Range E in most 2500HD sizes.
Nitto Ridge Grappler (LT285/60R20) — a hybrid terrain tire splitting the difference between all-terrain and mud-terrain. Aggressive enough for serious off-road but quiet enough for daily driving. Popular upgrade for Sierra 2500HD owners who want aggressive looks with daily usability.
Frequently asked
What tire size does the GMC Sierra 2500HD use?
Standard 18-inch: LT265/70R18. Other 18-inch configurations: LT275/65R18. 20-inch: LT285/60R20. Always verify on the driver door sticker. Always use LT-rated tires — never P-metric.
What load range do I need for the Sierra 2500HD?
Load Range E (10-ply rating) is the standard for Sierra 2500HD. Always match or exceed the load range and load index on the door sticker. For heavy towing and maximum payload, Load Range E is the baseline.
How much do GMC Sierra 2500HD tires cost?
LT265/70R18 Load Range E: $180 to $280 per tire. LT285/60R20 Load Range E: $220 to $340 per tire. A full set of four in LT265/70R18 installed runs $720 to $1,120.
Keep reading
Last updated 2026-06-27. General guidance only — confirm specifics with a local shop for your exact vehicle.