2008 Pontiac Montana Wheel & Tire Sizes
Complete fitment guide for the 2008 Pontiac Montana: factory tire sizes, compatible wheel diameters, widths and offsets, and the 6x114.3 bolt pattern — for every trim.
Bolt Pattern
6x114.3
Centre Bore
70.3 mm
Lug nuts
M12 x 1.5
TPMS
315 MHz
Factory (OEM) Tire Sizes for the 2008 Pontiac Montana
Click any size to shop tires in stock now — free shipping anywhere in Canada, optional installation at our 5 GTA locations.
2008 Pontiac Montana Wheel Fitment by Trim
Compatible wheel diameter, width and offset ranges for each 2008 Pontiac Montana configuration.
3.5i · MPV
V6 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–18" |
| Wheel width | 6.5–7.5" |
| Wheel offset | 50–52 mm |
| Tire width | 225–245 mm |
3.9i · MPV
V6 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 17–19" |
| Wheel width | 6.5–8" |
| Wheel offset | 45–52 mm |
| Tire width | 225–245 mm |
2008 Pontiac Montana Fitment FAQ
What is the bolt pattern on a 2008 Pontiac Montana?
The 2008 Pontiac Montana uses a 6x114.3 bolt pattern (6 lug nuts on a 114.3 mm circle) with a 70.3 mm centre bore.
What size tires fit a 2008 Pontiac Montana?
Factory (OEM) tire sizes for the 2008 Pontiac Montana include 225/60R17, 225/55R18, 235/55R18, 245/50R18, 245/45R19. Always confirm against the placard inside the driver's door jamb.
What wheel sizes can I put on a 2008 Pontiac Montana?
Depending on trim, the 2008 Pontiac Montana accepts wheels from 17" up to 19" 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 2008 Pontiac Montana use?
The 2008 Pontiac Montana uses M12 x 1.5 lug nuts.
Fitment data is provided as a guide. Always verify sizes against your vehicle's door-jamb placard or with our fitment experts before ordering.