Coolant Expansion Tank (Pressure) Cap (Genuine) - 986 Boxster, 987.1 Boxster / Cayman, 996, 997.1

This is the latest, updated coolant expansion tank pressure cap for your Porsche (version 4).

If you ve experienced coolant leakage or overflow, the first step is to replace the (potentially) over 20 year old pressure cap on your car with a brand new, genuine part. The caps are a known weak point, subject to four design revisions over the production run of the M96 and M97 engine family.

An inexpensive preventative maintenance item, and an essential replacement for anyone who s cooling system is giving trouble.

Factory Product Code: 996.106.447.04 99610644704 996 106 447 04