1999 Pontiac Grand Prix Wheel & Tire Sizes
Complete fitment guide for the 1999 Pontiac Grand Prix: factory tire sizes, compatible wheel diameters, widths and offsets, and the 5x115 bolt pattern — for every trim.
Bolt Pattern
5x115
Centre Bore
70.3 mm
Lug nuts
M12 x 1.5
Wheel Diameters
15"–19"
Factory (OEM) Tire Sizes for the 1999 Pontiac Grand Prix
Click any size to shop tires in stock now — free shipping anywhere in Canada, optional installation at our 5 GTA locations.
1999 Pontiac Grand Prix Wheel Fitment by Trim
Compatible wheel diameter, width and offset ranges for each 1999 Pontiac Grand Prix configuration.
3.1i · Saloon
V6 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 15–19" |
| Wheel width | 6–8" |
| Wheel offset | 40–52 mm |
| Tire width | 205–235 mm |
3.8i GT · Saloon
V6 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 16–19" |
| Wheel width | 6.5–8" |
| Wheel offset | 40–52 mm |
| Tire width | 225–245 mm |
3.8i GTP · Saloon
V6 · Petrol
| Spec | Front & Rear |
|---|---|
| Wheel diameter | 16–19" |
| Wheel width | 6.5–8" |
| Wheel offset | 40–52 mm |
| Tire width | 225–245 mm |
1999 Pontiac Grand Prix Fitment FAQ
What is the bolt pattern on a 1999 Pontiac Grand Prix?
The 1999 Pontiac Grand Prix uses a 5x115 bolt pattern (5 lug nuts on a 115 mm circle) with a 70.3 mm centre bore.
What size tires fit a 1999 Pontiac Grand Prix?
Factory (OEM) tire sizes for the 1999 Pontiac Grand Prix include 205/70R15, 225/60R16, 225/55R17, 245/50R17. Always confirm against the placard inside the driver's door jamb.
What wheel sizes can I put on a 1999 Pontiac Grand Prix?
Depending on trim, the 1999 Pontiac Grand Prix accepts wheels from 15" 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 1999 Pontiac Grand Prix use?
The 1999 Pontiac Grand Prix 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.