Tire specs
- Load index
- 123/120
- Speed rating
- S (112 mph)
- Load range
- E (10-ply)
- Tread depth
- 12/32"
- Item #
- 2756518GOO844084001
2023 GMC Sierra 1500 AT4X — LT275/65R18
2023 GMC Sierra 1500 AT4X
- Factory size
- LT275/65R18
- Load / speed
- 113/110Q
49 tire results
Factory-size matches for your vehicleWhat size tires does the 2023 GMC Sierra 1500 AT4X take?
The factory tire size for the 2023 GMC Sierra 1500 AT4X is LT275/65R18.
The catalog lists it at load index 113/110, speed rating Q (up to 99 mph).
| Wheels | Size | Load index | Speed rating |
|---|---|---|---|
| All wheels | LT275/65R18 | 113/110 | Q |
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.