Tire Size Specification
VIN Verification Required1989 Porsche 928 5.0L 8-cyl — Tire Size
Recommended interval: Rotate every 5,000–7,500 miles; check cold PSI monthly
Factory Tire Size
225/50R16
Rear Factory Size
245/45R16
Technical Specifications
| Front Tire Size | 225/50R16 |
|---|---|
| Rear Tire Size | 245/45R16 |
| Rim / Wheel Size | 16" |
| Matched Trims | GT, S4 |
Compatible Aftermarket Options
Direct OEM cross-references- Buy Michelin / Continental / Pirelli 225/50R16 on AmazonMichelin / Continental / Pirelli225/50R16Front
Search query: 225/50R16 tire
- Buy Michelin / Continental / Pirelli 245/45R16 on AmazonMichelin / Continental / Pirelli245/45R16Rear
Search query: 245/45R16 tire
DIY Fitment & Verification Checklist for 1989 Porsche 928
- Confirm your engine code or trim variant above before ordering parts, as mid-year production changes can affect tire size fitment.
- When purchasing OEM or aftermarket brands (Motorcraft, ACDelco, Mopar, Wix, Fram, Mobil 1, Bosch, NGK), cross-check the Amazon Garage Confirmed Fit badge with your 17-digit VIN.
- Always consult your 1989 Porsche 928 owner's manual for exact torque specs and fluid service intervals.
Sources: NHTSA vPIC & OEM Service SpecificationsReport an inaccurate spec or part number
Frequently Asked Questions
What is the OEM tire size specification for a 1989 Porsche 928?
The primary OEM tire size part number / specification for the 1989 Porsche 928 5.0L 8-cyl is 225/50R16.
Which aftermarket tire size brands fit the 1989 Porsche 928?
Compatible aftermarket options include Michelin / Continental / Pirelli 225/50R16, Michelin / Continental / Pirelli 245/45R16.