
The Story
This German Thermostat Housing Seal is used on Porsche 911/993/Boxster/Cayman (2009–2013) applications listed below when the original part is worn, leaking, damaged, or missing. It supports cooling-system service where coolant flow, sealing, or pressure control matters.
Use it when old rubber, paper, or sealing surfaces have hardened, flattened, or begun to leak.
Technical Details
- Manufacturer part number: 99970758940
- Type: Thermostat Housing Seal
- Application range: Porsche 911/993/Boxster/Cayman (2009–2013)
Fitment & Compatibility
Use the fitment table below to confirm year, model, submodel, and application notes before ordering.
If you want help confirming the application, send us your VIN. PMB Performance has spent over 20 years working through Porsche fitment details, model changes, and service parts.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2009 | Porsche | 911 | Carrera | |
| 2010 | Porsche | 911 | Carrera | |
| 2011 | Porsche | 911 | Carrera | |
| 2012 | Porsche | 911 | Carrera | |
| 2009 | Porsche | 911 | Carrera 4 | |
| 2010 | Porsche | 911 | Carrera 4 | |
| 2011 | Porsche | 911 | Carrera 4 | |
| 2012 | Porsche | 911 | Carrera 4 | |
| 2012 | Porsche | 911 | Carrera 4 GTS | |
| 2009 | Porsche | 911 | Carrera 4S | |
| 2010 | Porsche | 911 | Carrera 4S | |
| 2011 | Porsche | 911 | Carrera 4S | |
| 2012 | Porsche | 911 | Carrera 4S | |
| 2011 | Porsche | 911 | Carrera GTS | |
| 2012 | Porsche | 911 | Carrera GTS | |
| 2009 | Porsche | 911 | Carrera S | |
| 2010 | Porsche | 911 | Carrera S | |
| 2011 | Porsche | 911 | Carrera S | |
| 2012 | Porsche | 911 | Carrera S | |
| 2011 | Porsche | 911 | Speedster | |
| 2009 | Porsche | 911 | Targa 4 | |
| 2010 | Porsche | 911 | Targa 4 | |
| 2011 | Porsche | 911 | Targa 4 | |
| 2012 | Porsche | 911 | Targa 4 | |
| 2009 | Porsche | 911 | Targa 4S | |
| 2010 | Porsche | 911 | Targa 4S | |
| 2011 | Porsche | 911 | Targa 4S | |
| 2012 | Porsche | 911 | Targa 4S | |
| 2010 | Porsche | 911 | Turbo | |
| 2011 | Porsche | 911 | Turbo | |
| 2012 | Porsche | 911 | Turbo | |
| 2013 | Porsche | 911 | Turbo | |
| 2011 | Porsche | 911 | Turbo S | |
| 2012 | Porsche | 911 | Turbo S | |
| 2013 | Porsche | 911 | Turbo S | |
| 2009 | Porsche | Boxster | ||
| 2010 | Porsche | Boxster | ||
| 2011 | Porsche | Boxster | ||
| 2012 | Porsche | Boxster | ||
| 2009 | Porsche | Cayman | ||
| 2010 | Porsche | Cayman | ||
| 2011 | Porsche | Cayman | ||
| 2012 | Porsche | Cayman |
Description
This German Thermostat Housing Seal is used on Porsche 911/993/Boxster/Cayman (2009–2013) applications listed below when the original part is worn, leaking, damaged, or missing. It supports cooling-system service where coolant flow, sealing, or pressure control matters.
Use it when old rubber, paper, or sealing surfaces have hardened, flattened, or begun to leak.
Technical Details
- Manufacturer part number: 99970758940
- Type: Thermostat Housing Seal
- Application range: Porsche 911/993/Boxster/Cayman (2009–2013)
Fitment & Compatibility
Use the fitment table below to confirm year, model, submodel, and application notes before ordering.
If you want help confirming the application, send us your VIN. PMB Performance has spent over 20 years working through Porsche fitment details, model changes, and service parts.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2009 | Porsche | 911 | Carrera | |
| 2010 | Porsche | 911 | Carrera | |
| 2011 | Porsche | 911 | Carrera | |
| 2012 | Porsche | 911 | Carrera | |
| 2009 | Porsche | 911 | Carrera 4 | |
| 2010 | Porsche | 911 | Carrera 4 | |
| 2011 | Porsche | 911 | Carrera 4 | |
| 2012 | Porsche | 911 | Carrera 4 | |
| 2012 | Porsche | 911 | Carrera 4 GTS | |
| 2009 | Porsche | 911 | Carrera 4S | |
| 2010 | Porsche | 911 | Carrera 4S | |
| 2011 | Porsche | 911 | Carrera 4S | |
| 2012 | Porsche | 911 | Carrera 4S | |
| 2011 | Porsche | 911 | Carrera GTS | |
| 2012 | Porsche | 911 | Carrera GTS | |
| 2009 | Porsche | 911 | Carrera S | |
| 2010 | Porsche | 911 | Carrera S | |
| 2011 | Porsche | 911 | Carrera S | |
| 2012 | Porsche | 911 | Carrera S | |
| 2011 | Porsche | 911 | Speedster | |
| 2009 | Porsche | 911 | Targa 4 | |
| 2010 | Porsche | 911 | Targa 4 | |
| 2011 | Porsche | 911 | Targa 4 | |
| 2012 | Porsche | 911 | Targa 4 | |
| 2009 | Porsche | 911 | Targa 4S | |
| 2010 | Porsche | 911 | Targa 4S | |
| 2011 | Porsche | 911 | Targa 4S | |
| 2012 | Porsche | 911 | Targa 4S | |
| 2010 | Porsche | 911 | Turbo | |
| 2011 | Porsche | 911 | Turbo | |
| 2012 | Porsche | 911 | Turbo | |
| 2013 | Porsche | 911 | Turbo | |
| 2011 | Porsche | 911 | Turbo S | |
| 2012 | Porsche | 911 | Turbo S | |
| 2013 | Porsche | 911 | Turbo S | |
| 2009 | Porsche | Boxster | ||
| 2010 | Porsche | Boxster | ||
| 2011 | Porsche | Boxster | ||
| 2012 | Porsche | Boxster | ||
| 2009 | Porsche | Cayman | ||
| 2010 | Porsche | Cayman | ||
| 2011 | Porsche | Cayman | ||
| 2012 | Porsche | Cayman |





















