2026 GMC Sierra 3500HD Wheel & Tire Sizes
Complete fitment guide for the 2026 GMC Sierra 3500HD: factory tire sizes, compatible wheel diameters, widths and offsets, and the 8x180 bolt pattern, for every trim.
Bolt Pattern
8x180 / 8x210
Varies by trim
Centre Bore
124.1 mm
TPMS
433 MHz
Factory (OEM) Tire Sizes for the 2026 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.
2026 GMC Sierra 3500HD Wheel Fitment by Trim
Compatible wheel diameter, width and offset ranges for each 2026 GMC Sierra 3500HD configuration.
6.6i · SRW
6.6L · Bolt pattern: 8x180
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 18–26" |
| Wheel width | 8–10.5" |
| Wheel offset | 15–40 mm |
| Tire width | 265–305 mm |
6.6i · DRW
6.6L · 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 |
6.6i · SRW
6.6L · Bolt pattern: 8x180
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 18–20" |
| Wheel width | 8–9" |
| Wheel offset | 0–47 mm |
| Tire width | 275–305 mm |
6.6TD · SRW
6.6L · Bolt pattern: 8x180
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 18–26" |
| Wheel width | 8–10.5" |
| Wheel offset | 15–40 mm |
| Tire width | 265–305 mm |
6.6TD · DRW
6.6L · 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 |
6.6TD · SRW
6.6L · Bolt pattern: 8x180
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 18–20" |
| Wheel width | 8–9" |
| Wheel offset | 0–47 mm |
| Tire width | 275–305 mm |
2026 GMC Sierra 3500HD Fitment FAQ
What is the bolt pattern on a 2026 GMC Sierra 3500HD?
The 2026 GMC Sierra 3500HD uses 8x180 or 8x210 depending on trim, check the per-trim tables below to confirm which applies to your configuration. The centre bore is 124.1 mm.
What size tires fit a 2026 GMC Sierra 3500HD?
Factory (OEM) tire sizes for the 2026 GMC Sierra 3500HD include LT275/70R18, LT275/65R20. Always confirm against the placard inside the driver's door jamb.
What wheel sizes can I put on a 2026 GMC Sierra 3500HD?
Depending on trim, the 2026 GMC Sierra 3500HD 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.
Fitment data is provided as a guide. Always verify sizes against your vehicle's door-jamb placard or with our fitment experts before ordering.