Porsche 911/Boxster/Cayman Brake Booster 99635502504
Porsche Part #: 996-355-025-04 (99635502504)
This page covers one exact OEM part number. Every unit we stocked has sold.
We may be able to get another
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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The brake booster, located in the engine compartment, plays a crucial role in enhancing braking efficiency by amplifying the force applied to the brake pedal. This OEM part, with part numbers 99635592300 and 99635502504, serves to increase braking power without requiring excessive physical effort from the driver. Common issues that may necessitate replacement include diminished braking response, a hard brake pedal, or fluid leaks indicating internal failure. Compatible with Porsche models such as the Boxster (1997-2004, 2009-2012), Cayman (2009-2012), and 911 (1998-2005), this factory-original part ensures seamless integration with existing brake systems.
Specifications
| Fits Vehicle Model | 911, Boxster, Cayman |
| Fits Vehicle Make | Porsche |
| Porsche Part No | 996-355-025-04 (99635502504) |
| Compatible OEM Part No | 996-355-923-00 |
| Category | Brake Booster |
Compatible Vehicles
Fits 85 vehicle configurations across 1 make, 1997-2012.
View all 85 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 1997 | Porsche | Boxster | Convertible | 2.5L | |
| 1998 | Porsche | 911 | Carrera 4 Convertible | 3.6L | |
| 1998 | Porsche | 911 | Carrera 4 Coupe | 3.6L | |
| 1998 | Porsche | 911 | Carrera 4S Coupe | 3.6L | |
| 1998 | Porsche | 911 | Carrera Convertible | 3.6L | |
| 1998 | Porsche | 911 | Carrera S Coupe | 3.6L | |
| 1998 | Porsche | 911 | Targa | 3.6L | |
| 1998 | Porsche | Boxster | Convertible | 2.5L | |
| 1999 | Porsche | 911 | Carrera 4 Convertible | 3.4L | |
| 1999 | Porsche | 911 | Carrera 4 Coupe | 3.4L | |
| 1999 | Porsche | 911 | Carrera Convertible | 3.4L | |
| 1999 | Porsche | 911 | Carrera Coupe | 3.4L | |
| 1999 | Porsche | Boxster | Convertible | 2.5L | |
| 2000 | Porsche | 911 | Carrera 4 Convertible | 3.4L | |
| 2000 | Porsche | 911 | Carrera 4 Coupe | 3.4L | |
| 2000 | Porsche | 911 | Carrera Convertible | 3.4L | |
| 2000 | Porsche | 911 | Carrera Coupe | 3.4L | |
| 2000 | Porsche | Boxster | Roadster Convertible | 2.7L | |
| 2000 | Porsche | Boxster | Roadster S Convertible | 3.2L | |
| 2001 | Porsche | 911 | Carrera 4 Convertible | 3.4L | |
| 2001 | Porsche | 911 | Carrera 4 Coupe | 3.4L | |
| 2001 | Porsche | 911 | Carrera Convertible | 3.4L | |
| 2001 | Porsche | 911 | Carrera Coupe | 3.4L | |
| 2001 | Porsche | 911 | Turbo Coupe | 3.6L Turbo | |
| 2001 | Porsche | Boxster | Roadster Convertible | 2.7L | |
| 2001 | Porsche | Boxster | Roadster S Convertible | 3.2L | |
| 2002 | Porsche | 911 | Carrera 4 Convertible | 3.6L | |
| 2002 | Porsche | 911 | Carrera 4S Coupe | 3.6L | |
| 2002 | Porsche | 911 | Carrera Convertible | 3.6L | |
| 2002 | Porsche | 911 | Carrera Coupe | 3.6L | |
| 2002 | Porsche | 911 | GT2 Coupe | 3.6L Turbo | |
| 2002 | Porsche | 911 | Targa | 3.6L | |
| 2002 | Porsche | 911 | Turbo Coupe | 3.6L Turbo | |
| 2002 | Porsche | Boxster | Roadster Convertible | 2.7L | |
| 2002 | Porsche | Boxster | Roadster S Convertible | 3.2L | |
| 2003 | Porsche | 911 | Carrera 4 Convertible | 3.6L | |
| 2003 | Porsche | 911 | Carrera 4S Coupe | 3.6L | |
| 2003 | Porsche | 911 | Carrera Convertible | 3.6L | |
| 2003 | Porsche | 911 | Carrera Coupe | 3.6L | |
| 2003 | Porsche | 911 | GT2 Coupe | 3.6L Turbo | |
| 2003 | Porsche | 911 | Turbo Coupe | 3.6L Turbo | |
| 2003 | Porsche | Boxster | Roadster Convertible | 2.7L | |
| 2003 | Porsche | Boxster | Roadster S Convertible | 3.2L | |
| 2004 | Porsche | 911 | Coupe | 3.6L | |
| 2004 | Porsche | 911 | Carrera 4 Convertible | 3.6L | |
| 2004 | Porsche | 911 | Carrera 4S Convertible | 3.6L | |
| 2004 | Porsche | 911 | Carrera 4S Coupe | 3.6L | |
| 2004 | Porsche | 911 | Carrera Convertible | 3.6L | |
| 2004 | Porsche | 911 | Carrera Coupe | 3.6L | |
| 2004 | Porsche | 911 | GT2 Coupe | 3.6L Turbo | |
| 2004 | Porsche | 911 | GT3 Coupe | 3.6L | |
| 2004 | Porsche | 911 | Turbo Convertible | 3.6L Turbo | |
| 2004 | Porsche | 911 | Turbo Coupe | 3.6L Turbo | |
| 2004 | Porsche | Boxster | Convertible | 2.7L | |
| 2004 | Porsche | Boxster | S Convertible | 3.2L | |
| 2005 | Porsche | 911 | Carrera 4S Convertible | 3.6L | |
| 2005 | Porsche | 911 | Carrera 4S Coupe | 3.6L | |
| 2005 | Porsche | 911 | Carrera Convertible | 3.6L | |
| 2005 | Porsche | 911 | Carrera Coupe | 3.6L | |
| 2005 | Porsche | 911 | GT2 Coupe | 3.6L Turbo | |
| 2005 | Porsche | 911 | GT3 Coupe | 3.6L | |
| 2005 | Porsche | 911 | Turbo Convertible | 3.6L Turbo | |
| 2005 | Porsche | 911 | Turbo Coupe | 3.6L Turbo | |
| 2005 | Porsche | 911 | Turbo S Convertible | 3.6L Turbo | |
| 2005 | Porsche | 911 | Turbo S Coupe | 3.6L Turbo | |
| 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 |