This MAHLE piston ring set (part number 503 71 N0) replaces the compression and oil-control rings that seal the combustion chamber, control oil film on the cylinder wall, and transfer heat from the piston to the bore. It fits Porsche 911 applications listed in the fitment table below. MAHLE is one of the largest automotive systems suppliers in the world, known for filtration, pistons, rings, and sealing parts produced to OE specification.
Technical Details
- Manufacturer part number: 503 71 N0
- Part type: Piston Ring Set
- 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 brings more than 20 years of Porsche work to every order. If you are unsure about year or submodel, send your VIN and we will check it against the application.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1978 | Porsche | 911 | ||
| 1979 | Porsche | 911 |