Coolant Expansion Tank Cap
We show live inventory for in-stock items. Products may sell out due to high demand but are restocked regularly. Out-of-stock items can still be ordered and usually arrive within a few weeks.
We show live inventory for in-stock items. Products may sell out due to high demand but are restocked regularly. Out-of-stock items can still be ordered and usually arrive within a few weeks.
This is a very important and often overlooked part of your car's cooling system. A properly functioning coolant cap helps regulate pressure within the system. If it leaks, proper pressure may not be reached, and your car may overheat. If it doesn't vent properly, excessive pressure can build, leading to severe leaks in the cooling system. The coolant reservoir cap should be tested at each cooling system service.
This part also goes by the following cross reference.
Cross Reference Part Number:
| Make | Model | Engine | Years |
|---|---|---|---|
| Porsche | CayenneBase, S, Turbo, Turbo S | 3.2V6 | 2004–2006 |
| Porsche | CayenneBase, GTS, S, S Transsyberia, Turbo, Turbo S | 3.6V6 | 2008–2010 |
| Porsche | CayenneBase, S, Turbo, Turbo S | 4.5V8 | 2003–2006 |
| Porsche | CayenneBase, GTS, S, S Transsyberia, Turbo, Turbo S | 4.8V8 | 2008–2010 |
| Porsche | Panamera4, 4 Edition, 4S, 4S Executive, Base, Edition, Exclusive, GTS, S, S E-Hybrid, S Hybrid, Turbo, Turbo Executive, Turbo S, Turbo S Executive | 3.0V6 | 2012–2016 |
| Porsche | Panamera4, 4 Edition, 4S, 4S Executive, Base, Edition, Exclusive, GTS, S, S E-Hybrid, S Hybrid, Turbo, Turbo Executive, Turbo S, Turbo S Executive | 3.6V6 | 2011–2016 |
| Porsche | Panamera4, 4 Edition, 4S, 4S Executive, Base, Edition, Exclusive, GTS, S, S E-Hybrid, S Hybrid, Turbo, Turbo Executive, Turbo S, Turbo S Executive | 4.8V8 | 2010–2016 |