2025 GMC Sierra 3500 HD Denali Ultimate (DRW) — LT235/80R18
O.E. size · LT235/80R18
2025 GMC Sierra 3500 HD Denali Ultimate (DRW)
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Factory-size matches for your vehicleNo tires are currently available to order at Anaheim.
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What size tires does the 2025 GMC Sierra 3500 HD Denali Ultimate (DRW) take?
The factory tire size for the 2025 GMC Sierra 3500 HD Denali Ultimate (DRW) is LT235/80R18.
The catalog lists it at load index 121/118, speed rating R (up to 106 mph).
| Wheels | Size | Load index | Speed rating |
|---|---|---|---|
| All wheels | LT235/80R18 | 121/118 | R |
Confirm the size printed on the sidewall of your current tire or on the tire placard in the driver's door jamb before you buy. Replacement tires should meet or exceed the vehicle's load index and speed rating.