Tire specs
- Warranty
- 65,000 miles
- Load index
- 114
- Speed rating
- T (118 mph)
- Load range
- Standard load (SL)
- Tread depth
- 13/32"
- Item #
- 2656518FAL28844823
2026 GMC Sierra 1500 SLT — 265/65R18
O.E. size · 265/65R18
2026 GMC Sierra 1500 SLT
13 tire results
Factory-size matches for your vehicleWhat size tires does the 2026 GMC Sierra 1500 SLT take?
The factory tire size for the 2026 GMC Sierra 1500 SLT is 265/65R18.
The catalog lists it at load index 114, speed rating T (up to 118 mph).
This trim is also listed with 275/60R20, 275/50R22. Check which one your vehicle has.
| Wheels | Size | Load index | Speed rating |
|---|---|---|---|
| All wheels | 265/65R18 | 114 | T |
| All wheels | 275/60R20 | 115 | S |
| All wheels | 275/50R22 | 111 | T |
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.