Published by Rims & Tires
Compiled & checked by the site's publisher from manufacturer, NHTSA & USTMA data · Updated 2026-07-24
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 LT245/75R17 on standard 17-inch wheels, LT275/70R18 on 18-inch configurations, and LT275/65R20 on 20-inch wheels (SLT, Denali). 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 3 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 (LT275/70R18, LT275/65R20): 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 (LT275/70R18): 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 (LT275/70R18): OEM-style highway commercial truck tire. High load rating, good wear life, solid all-season performance. Built for the duty cycle the 2500HD faces.
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Best all-terrain tires for the Sierra 2500HD
BFGoodrich All-Terrain T/A KO2 (LT275/70R18, LT275/65R20): 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 (LT245/75R17, LT275/65R20): 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 (LT275/65R20): 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.
Best Tires for the GMC Sierra 2500HD at a glance
| Trim | Tire | Best For |
|---|---|---|
| highway all-season tires for the Sierra 2500HD | Michelin LTX A/T2 (LT275/70R18, LT275/65R20) | 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. |
| highway all-season tires for the Sierra 2500HD | Goodyear Wrangler Fortitude HT (LT275/70R18) | 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. |
| highway all-season tires for the Sierra 2500HD | BFGoodrich Commercial T/A All-Season 2 (LT275/70R18) | OEM-style highway commercial truck tire. High load rating, good wear life, solid all-season performance. Built for the duty cycle the 2500HD faces. |
| all-terrain tires for the Sierra 2500HD | BFGoodrich All-Terrain T/A KO2 (LT275/70R18, LT275/65R20) | 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. |
| all-terrain tires for the Sierra 2500HD | Toyo Open Country AT III (LT245/75R17, LT275/65R20) | 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. |
| all-terrain tires for the Sierra 2500HD | Nitto Ridge Grappler (LT275/65R20) | 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 17-inch: LT245/75R17. 18-inch: LT275/70R18. 20-inch: LT275/65R20. 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?
LT275/70R18 Load Range E: $180 to $280 per tire. LT275/65R20 Load Range E: $220 to $340 per tire. A full set of four in LT275/70R18 installed runs $720 to $1,120.
Should I run highway or all-terrain tires on my Sierra 2500HD?
If most of your miles are towing and highway, a highway tire is quieter, lasts longer, and is easier on fuel. If you regularly hit job sites, mud, or unpaved roads, an all-terrain earns the trade in noise and wear. Be honest about your real duty cycle. A truck-tire shop can match the tread to how you actually use the truck.
How do I know when my 2500HD tires are worn out?
Check tread depth and watch for chunking, uneven wear, or a rougher ride under load. Heavy-duty tires can also age out before the tread is gone, especially if the truck sits between jobs. A local shop can inspect them and confirm whether they're still safe for towing at your weight.
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Last updated 2026-07-24. General guidance only — confirm specifics with a local shop for your exact vehicle.