2005-2012 Porsche Boxster/Cayman Coolant Cap 98710604400
Porsche Part #: 987-106-044-00 (98710604400)
Actual photo
The exact part you’ll receive — not a stock photo.
$11.49
Used
Donor2010 Porsche BOXSTER · 2.9L · 43k miles
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Only 2 in stock — no guaranteed restock
Genuine OEM Used
SKU: 476195
Donor Vehicle: 2010 Porsche BOXSTER · 2.9L · 43k miles
2 photos
$11.49
30-Day Returns
Genuine OEM Used
SKU: 693148
Donor Vehicle: 2007 Porsche BOXSTER · 2.7L
2 photos
$11.49
30-Day Returns
- Genuine OEM — real photos
- 30-day returns on eligible parts
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- Ships from our own indoor warehouse
This genuine Porsche coolant cap (98710604400) is a used OEM part, removed from a donor vehicle. It seals the engine's expansion tank, maintaining correct system pressure. A failing cap can allow coolant to escape, leading to overheating—a common issue on high-mileage Boxster and Cayman models with the 2.7L to 3.4L H6 engines.
Specifications
| Fits Vehicle Model | Boxster, Cayman |
| Fits Vehicle Make | Porsche |
| Porsche Part No | 987-106-044-00 (98710604400) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 32 vehicle configurations across 1 make, 2005-2012.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 32 vehicle configurations — 7 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2011 | Porsche | Boxster | Spyder Convertible | 3.4L | |
| 2011 | Porsche | Boxster | Convertible | 2.9L | |
| 2012 | Porsche | Boxster | S Convertible | 3.4L | |
| 2012 | Porsche | Boxster | Convertible | 2.9L | |
| 2012 | Porsche | Cayman | Hatchback | 2.9L | |
| 2011 | Porsche | Cayman | Hatchback | 2.9L | |
| 2012 | Porsche | Boxster | Spyder Convertible | 3.4L | |
| 2009 | Porsche | Boxster | S 2 Convertible | 3.4L | |
| 2011 | Porsche | Boxster | S Convertible | 3.4L | |
| 2011 | Porsche | Cayman | S Hatchback | 3.4L | |
| 2012 | Porsche | Cayman | R Hatchback | 3.4L | |
| 2012 | Porsche | Cayman | S Hatchback | 3.4L | |
| 2010 | Porsche | Cayman | Hatchback | 2.9L | |
| 2005 | Porsche | Boxster | Convertible | 2.7L | For Vehicles with Engine Code(s) 9720 |
| 2006 | Porsche | Cayman | S Hatchback | 3.4L | |
| 2007 | Porsche | Boxster | S Convertible | 3.4L | For Vehicles with Engine Code(s) 9721, 9722 |
| 2006 | Porsche | Boxster | Convertible | 2.7L | For Vehicles with Engine Code(s) 9720 |
| 2007 | Porsche | Cayman | S Hatchback | 3.4L | |
| 2008 | Porsche | Boxster | Convertible | 2.7L | For Vehicles with Engine Code(s) 9720 |
| 2008 | Porsche | Cayman | Hatchback | 2.7L | |
| 2008 | Porsche | Cayman | S Hatchback | 3.4L | |
| 2008 | Porsche | Boxster | RS 60 Spyder Convertible | 3.4L | For Vehicles with Engine Code(s) 9721, 9722 |
| 2010 | Porsche | Cayman | S Hatchback | 3.4L | |
| 2009 | Porsche | Cayman | S Hatchback | 3.4L | |
| 2007 | Porsche | Boxster | Convertible | 2.7L | For Vehicles with Engine Code(s) 9720 |
| 2008 | Porsche | Boxster | S Convertible | 3.4L | For Vehicles with Engine Code(s) 9721, 9722 |
| 2009 | Porsche | Boxster | S Convertible | 3.4L | |
| 2009 | Porsche | Boxster | Convertible | 2.9L | |
| 2009 | Porsche | Cayman | Hatchback | 2.9L | |
| 2010 | Porsche | Boxster | S Convertible | 3.4L | |
| 2010 | Porsche | Boxster | Convertible | 2.9L | |
| 2007 | Porsche | Cayman | Hatchback | 2.7L |