2008 Porsche Boxster Tire Size & Pressure
The 2008 Porsche Boxster tire size depends on trim: the S, Automatic takes 235/35ZR19 (87Y); the Base, Automatic takes 205/55R17 91Y; the S, Standard takes 235/35ZR19 (87Y); the Base, Standard takes 205/55R17 91Y, per the factory service manual.
- S, Automatic: 235/35ZR19 (87Y)
- Base, Automatic: 205/55R17 91Y
- S, Standard: 235/35ZR19 (87Y)
- Base, Standard: 205/55R17 91Y
S, Automatic
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | 235/35ZR19 (87Y) | Door Placard | — | — |
| All | 235/40ZR18 (91Y) | Door Placard | — | — |
| All | 265/35ZR19 (94Y) | Door Placard | — | — |
| All | 265/40ZR18 (101Y) XL | Door Placard | — | — |
| All | 235/40R18 91V | Door Placard | — | — |
| All | 255/40R18 95V | Door Placard | — | — |
Base, Automatic
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | 205/55R17 91Y | Door Placard | — | — |
| All | 235/40ZR18 (91Y) | Door Placard | — | — |
| All | 235/50R17 96Y | Door Placard | — | — |
| All | 265/40ZR18 (101Y) RF | Door Placard | — | — |
| All | 205/55R17 91V | Door Placard | — | — |
| All | 235/50R17 96V | Door Placard | — | — |
S, Standard
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | 235/35ZR19 (87Y) | Door Placard | — | — |
| All | 235/40ZR18 (91Y) | Door Placard | — | — |
| All | 265/35ZR19 (94Y) | Door Placard | — | — |
| All | 265/40ZR18 (101Y) XL | Door Placard | — | — |
| All | 235/40R18 91V | Door Placard | — | — |
| All | 255/40R18 95V | Door Placard | — | — |
Base, Standard
Tire Specifications
| Position | Tire Size | Pressure | Load Index | Speed Rating |
|---|---|---|---|---|
| All | 205/55R17 91Y | Door Placard | — | — |
| All | 235/40ZR18 (91Y) | Door Placard | — | — |
| All | 235/50R17 96Y | Door Placard | — | — |
| All | 265/40ZR18 (101Y) RF | Door Placard | — | — |
| All | 205/55R17 91V | Door Placard | — | — |
| All | 235/50R17 96V | Door Placard | — | — |
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Frequently Asked Questions
What size tires does a 2008 Porsche Boxster take?
It depends on the trim: S, Automatic uses 235/35ZR19 (87Y); Base, Automatic uses 205/55R17 91Y; S, Standard uses 235/35ZR19 (87Y); Base, Standard uses 205/55R17 91Y.
What is the tire pressure for a 2008 Porsche Boxster?
Refer to the tire pressure placard on your vehicle's driver side door jamb for exact cold inflation pressures.
What is the bolt pattern on a 2008 Porsche Boxster?
Bolt pattern data is available in the factory service manual.