2025 GMC Sierra 2500 HD AT4X AEV Edition Diesel — LT305/70R18
O.E. size · LT305/70R18
2025 GMC Sierra 2500 HD AT4X AEV Edition Diesel
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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 2500 HD AT4X AEV Edition Diesel take?
The factory tire size for the 2025 GMC Sierra 2500 HD AT4X AEV Edition Diesel is LT305/70R18.
The catalog lists it at load index 126/123, speed rating R (up to 106 mph).
| Wheels | Size | Load index | Speed rating |
|---|---|---|---|
| All wheels | LT305/70R18 | 126/123 | 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.