This Elring Valve Stem Seal is a direct-fit replacement for Porsche 996/997/991/Boxster/Cayenne applications where this seal is specified. Elring Dichtung has been manufacturing engine sealing components for over a century, supplying gaskets, seals, and sealing systems to major vehicle manufacturers including Porsche. Known for German engineering, OEM-level sealing performance, and precision manufacturing, Elring components are built to maintain proper sealing under heat, pressure, and long-term engine operation.
Technical Details
- Manufacturer part number: 403.730
- Type: Valve stem seal for oil control at valve guides
Fitment & Compatibility
Confirm the part number and application details against your vehicle before ordering. If you are unsure on fitment, send us your VIN and we can help verify. At PMB Performance, we have been working with Porsche systems for over 20 years.