This MAHLE piston and cylinder (part number 503 03 90) is a matched piston-and-cylinder assembly supplied as a pair so bore and piston clearance stay correct on Porsche 911 applications listed in the fitment table below. MAHLE, founded in Stuttgart in 1920, pioneered light-alloy and ring-carrier piston technology and supplies pistons, rings, bearings, gaskets, and filtration to OE engine programs worldwide.
Technical Details
- Manufacturer part number: 503 03 90
- Part type: Piston and Cylinder
- Vehicle system: engine cylinder assembly
Fitment & Compatibility
Use the fitment table below to confirm year, make, model, submodel, and any application notes before ordering.
PMB Performance has more than 20 years of hands-on Porsche experience and can confirm this part against your exact car. Send your VIN if anything in the fitment table needs checking.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1970 | Porsche | 911 | S | |
| 1971 | Porsche | 911 | S |