Tire specs
- Load range
- E (10-ply)
- Item #
- 2657018BKH1602519
2014 GMC Sierra 3500 HD SLT Ext. Cab — LT265/70R18
O.E. size · LT265/70R18
2014 GMC Sierra 3500 HD SLT Ext. Cab
3 tire results
Factory-size matches for your vehicleTire specs
- Warranty
- 50,000 miles
- Load index
- 124/121
- Speed rating
- S (112 mph)
- Load range
- E (10-ply)
- Item #
- 2657018FAL28820127
Tire specs
- Warranty
- 60,000 miles
- Load index
- 124/121
- Speed rating
- S (112 mph)
- Load range
- E (10-ply)
- Tread depth
- 17/32"
- Item #
- 2657018FAL28840233
What size tires does the 2014 GMC Sierra 3500 HD SLT Ext. Cab take?
The factory tire size for the 2014 GMC Sierra 3500 HD SLT Ext. Cab is LT265/70R18.
The catalog lists it at load index 124/121, speed rating S (up to 112 mph).
This trim is also listed with LT265/60R20. Check which one your vehicle has.
| Wheels | Size | Load index | Speed rating |
|---|---|---|---|
| All wheels | LT265/70R18 | 124/121 | S |
| All wheels | LT265/60R20 | 121/118 | S |
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.