2020 GMC Sierra 3500HD Wheel & Tire Sizes
Complete fitment guide for the 2020 GMC Sierra 3500HD: factory tire sizes, compatible wheel diameters, widths and offsets, and the 8x210 bolt pattern — for every trim.
Bolt Pattern
8x210 / 8x180
Varies by trim
Centre Bore
154.2 mm
Lug nuts
M14 x 1.5
Torque: 190 Nm
TPMS
433 MHz
Factory (OEM) Tire Sizes for the 2020 GMC Sierra 3500HD
OEM sizes
Click any size to shop tires in stock now — free shipping anywhere in Canada, optional installation at our 5 GTA locations.
2020 GMC Sierra 3500HD Wheel Fitment by Trim
Compatible wheel diameter, width and offset ranges for each 2020 GMC Sierra 3500HD configuration.
6.6 TD · Pickup Truck Regular Cab SRW, 2d · DRW
6.6L · V8 · Diesel · Bolt pattern: 8x210
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–20" |
| Wheel width | 6.5–9" |
| Wheel offset | -145–125 mm |
| Tire width | 235–265 mm |
6.6 TD · Pickup Truck Regular Cab SRW, 2d · SRW
6.6L · V8 · Diesel · Bolt pattern: 8x180
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 18–20" |
| Wheel width | 8–9" |
| Wheel offset | 0–47 mm |
| Tire width | 275–305 mm |
6.6i · Pickup Truck Regular Cab SRW, 2d · SRW
6.6L · V8 · Petrol · Bolt pattern: 8x180
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 18–20" |
| Wheel width | 8–9" |
| Wheel offset | 0–47 mm |
| Tire width | 275–305 mm |
6.6i · Pickup Truck Regular Cab SRW, 2d · SRW
6.6L · V8 · Petrol · Bolt pattern: 8x180
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 18–20" |
| Wheel width | 8–9" |
| Wheel offset | 0–47 mm |
| Tire width | 275–305 mm |
2020 GMC Sierra 3500HD Fitment FAQ
What is the bolt pattern on a 2020 GMC Sierra 3500HD?
The 2020 GMC Sierra 3500HD uses 8x210 or 8x180 depending on trim — check the per-trim tables below to confirm which applies to your configuration. The centre bore is 154.2 mm.
What size tires fit a 2020 GMC Sierra 3500HD?
Factory (OEM) tire sizes for the 2020 GMC Sierra 3500HD include LT235/80R17, LT275/70R18, LT275/65R20. Always confirm against the placard inside the driver's door jamb.
What wheel sizes can I put on a 2020 GMC Sierra 3500HD?
Depending on trim, the 2020 GMC Sierra 3500HD accepts wheels from 17" up to 20" 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 2020 GMC Sierra 3500HD use?
The 2020 GMC Sierra 3500HD 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.