This MAHLE piston ring set (part number 504 40 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 Boxster/Cayman applications listed in the fitment table below. MAHLE built its reputation on piston and filtration engineering over more than a century and supplies these parts at OE quality across European applications.
Technical Details
- Manufacturer part number: 504 40 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.
With over 20 years working on Porsche cars, PMB Performance can help you match this part to your application. Reach out with your VIN if you want it confirmed first.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2000 | Porsche | Boxster | ||
| 2001 | Porsche | Boxster | ||
| 2002 | Porsche | Boxster | ||
| 2003 | Porsche | Boxster | ||
| 2004 | Porsche | Boxster | ||
| 2005 | Porsche | Boxster | Base | |
| 2006 | Porsche | Boxster | Base | |
| 2007 | Porsche | Boxster | Base | |
| 2008 | Porsche | Boxster | Base | |
| 2008 | Porsche | Boxster | Limited Edition | |
| 2007 | Porsche | Cayman | Base | |
| 2008 | Porsche | Cayman | Base |