What size tires fit a 2008 Toyota Sienna?
A 2008 Toyota Sienna typically fits 16-inch tires with P215/65R16, and many trims with 17-inch wheels use P235/60R17. Exact sizes depend on trim and wheels, so always check the door placard or the owner's manual for your specific vehicle.
Common tire sizes by wheel diameter
Here are the most frequently used OE sizes for the 2008 Sienna, depending on whether it has 16-inch or 17-inch wheels.
- P215/65R16 — standard on most trims with the factory 16-inch wheels.
- P235/60R17 — common on trims equipped with factory 17-inch wheels.
Sizes can vary by trim and production date, so always verify your exact OE size using the vehicle’s placard or the owner’s manual. The placard is usually located on the driver’s door jamb.
Guidelines for non-OE tire sizes
If you are considering non-OE sizes, keep these guidelines in mind to avoid handling or safety issues.
- Maintain overall tire diameter within about plus/minus 3% of the factory size to preserve speedometer accuracy and gearing.
- Ensure the new tires have a load index and speed rating that meet or exceed the original specifications.
- Check that the tire width and profile fit within the wheel wells and do not rub on suspension components, fenders, or brake parts.
- When changing wheel diameters, remember that TPMS (tire pressure monitoring system) and ride characteristics may be affected; some installations may require recalibration or professional tuning.
In practice, many drivers stick close to the OE equivalents, such as 215/60R16 or 225/65R16 for 16-inch setups, and 225/60R17 or 235/60R17 for 17-inch setups. Always confirm with a tire professional for your exact vehicle and wheel configuration.
What to check before buying
Where to find the correct size
The tire placard on the driver's door jamb and the owner’s manual list the exact recommended size, load index, and speed rating for your specific trim. Always start here before purchasing replacements.
Important notes on fit and safety
Avoid sizes that cause a noticeable change in diameter or load rating. Incorrect sizes can affect braking, handling, ABS, and overall safety. Have a qualified technician install tires and set the recommended tire pressures per the placard.
Summary
For a 2008 Toyota Sienna, the typical OE sizes are 16-inch wheels with P215/65R16 and 17-inch wheels with P235/60R17. If you choose non-OE sizes, aim for close equivalents that keep the overall diameter and load ratings within safe ranges, and always verify the exact specification with the door placard and a tire professional. By following these guidelines, you can ensure proper fit, performance, and safety for your Sienna.
