2021 GMC Sierra 1500 Wheel & Tire Sizes
Complete fitment guide for the 2021 GMC Sierra 1500: factory tire sizes, compatible wheel diameters, widths and offsets, and the 6x139.7 bolt pattern — for every trim.
Bolt Pattern
6x139.7
Centre Bore
78.1 mm
Lug nuts
M14 x 1.5
Torque: 190 Nm
TPMS
315 MHz
Factory (OEM) Tire Sizes for the 2021 GMC Sierra 1500
Click any size to shop tires in stock now — free shipping anywhere in Canada, optional installation at our 5 GTA locations.
2021 GMC Sierra 1500 Wheel Fitment by Trim
Compatible wheel diameter, width and offset ranges for each 2021 GMC Sierra 1500 configuration.
2.7 Turbo · Pickup Regular Cab, 2d
2.7L · I4 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–26" |
| Wheel width | 8–10.5" |
| Wheel offset | -12–40 mm |
| Tire width | 255–285 mm |
3.0 TD · Pickup Regular Cab, 2d
3.0L · I6 · Diesel
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–26" |
| Wheel width | 8–10.5" |
| Wheel offset | -12–40 mm |
| Tire width | 255–285 mm |
4.3i · Pickup Regular Cab, 2d
4.3L · V6 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–26" |
| Wheel width | 8–10.5" |
| Wheel offset | -12–40 mm |
| Tire width | 255–285 mm |
5.3i · Pickup Regular Cab, 2d
5.3L · V8 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–26" |
| Wheel width | 8–10.5" |
| Wheel offset | -12–40 mm |
| Tire width | 255–285 mm |
6.2i · Pickup Regular Cab, 2d
6.2L · V8 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–26" |
| Wheel width | 8–10.5" |
| Wheel offset | -12–40 mm |
| Tire width | 255–285 mm |
2021 GMC Sierra 1500 Fitment FAQ
What is the bolt pattern on a 2021 GMC Sierra 1500?
The 2021 GMC Sierra 1500 uses a 6x139.7 bolt pattern (6 lug nuts on a 139.7 mm circle) with a 78.1 mm centre bore.
What size tires fit a 2021 GMC Sierra 1500?
Factory (OEM) tire sizes for the 2021 GMC Sierra 1500 include 255/70R17, LT265/70R17, 265/70R17, 265/65R18, 275/65R18, 275/60R20, 275/50R22. Always confirm against the placard inside the driver's door jamb.
What wheel sizes can I put on a 2021 GMC Sierra 1500?
Depending on trim, the 2021 GMC Sierra 1500 accepts wheels from 17" up to 26" in diameter with the correct width and offset — larger diameters typically require lower-profile tires to keep the overall rolling diameter stock.
What lug nut size does a 2021 GMC Sierra 1500 use?
The 2021 GMC Sierra 1500 uses M14 x 1.5 lug nuts, torqued to 190 Nm.
Fitment data is provided as a guide. Always verify sizes against your vehicle's door-jamb placard or with our fitment experts before ordering.