Porsche Coolant Reservoir / Tank / Bottle 98710604703
Porsche Part #: 987-106-047-03 (98710604703)
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Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:
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This genuine Porsche coolant reservoir (OEM part number 98710604703) is essential for maintaining the cooling system's efficiency in your Porsche Boxster and Cayman models. Located in the engine bay, this expansion tank serves as a storage unit for coolant, allowing for proper circulation and preventing overheating. It interfaces with the radiator and engine components, ensuring optimal temperature regulation. Common replacement scenarios include cracks, leaks, or deterioration due to age, which can lead to coolant loss and potential engine damage. This reservoir fits the 2006-2012 Porsche Boxster (various trims) and 2006-2012 Cayman (various trims) with 2.7L and 3.4L H6 engines. Alternative part names include expansion tank. Other compatible part numbers are 99610644704, 98710604400, and 99970349440.
Specifications
| Fits Vehicle Model | Boxster, Cayman |
| Fits Vehicle Make | Porsche |
| Porsche Part No | 987-106-047-03 (98710604703) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 32 vehicle configurations across 1 make, 2005-2012.
View all 32 vehicle configurations — 7 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2005 | Porsche | Boxster | Convertible | 2.7L | For Vehicles with Engine Code(s) 9720 |
| 2006 | Porsche | Boxster | Convertible | 2.7L | For Vehicles with Engine Code(s) 9720 |
| 2006 | Porsche | Cayman | S Hatchback | 3.4L | |
| 2007 | Porsche | Boxster | Convertible | 2.7L | For Vehicles with Engine Code(s) 9720 |
| 2007 | Porsche | Boxster | S Convertible | 3.4L | For Vehicles with Engine Code(s) 9721, 9722 |
| 2007 | Porsche | Cayman | Hatchback | 2.7L | |
| 2007 | Porsche | Cayman | S Hatchback | 3.4L | |
| 2008 | Porsche | Boxster | Convertible | 2.7L | For Vehicles with Engine Code(s) 9720 |
| 2008 | Porsche | Boxster | RS 60 Spyder Convertible | 3.4L | For Vehicles with Engine Code(s) 9721, 9722 |
| 2008 | Porsche | Boxster | S Convertible | 3.4L | For Vehicles with Engine Code(s) 9721, 9722 |
| 2008 | Porsche | Cayman | Hatchback | 2.7L | |
| 2008 | Porsche | Cayman | S Hatchback | 3.4L | |
| 2009 | Porsche | Boxster | Convertible | 2.9L | |
| 2009 | Porsche | Boxster | S Convertible | 3.4L | |
| 2009 | Porsche | Boxster | S 2 Convertible | 3.4L | |
| 2009 | Porsche | Cayman | Hatchback | 2.9L | |
| 2009 | Porsche | Cayman | S Hatchback | 3.4L | |
| 2010 | Porsche | Boxster | Convertible | 2.9L | |
| 2010 | Porsche | Boxster | S Convertible | 3.4L | |
| 2010 | Porsche | Cayman | Hatchback | 2.9L | |
| 2010 | Porsche | Cayman | S Hatchback | 3.4L | |
| 2011 | Porsche | Boxster | Convertible | 2.9L | |
| 2011 | Porsche | Boxster | S Convertible | 3.4L | |
| 2011 | Porsche | Boxster | Spyder Convertible | 3.4L | |
| 2011 | Porsche | Cayman | Hatchback | 2.9L | |
| 2011 | Porsche | Cayman | S Hatchback | 3.4L | |
| 2012 | Porsche | Boxster | Convertible | 2.9L | |
| 2012 | Porsche | Boxster | S Convertible | 3.4L | |
| 2012 | Porsche | Boxster | Spyder Convertible | 3.4L | |
| 2012 | Porsche | Cayman | Hatchback | 2.9L | |
| 2012 | Porsche | Cayman | R Hatchback | 3.4L | |
| 2012 | Porsche | Cayman | S Hatchback | 3.4L |