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Brake Servo | Booster
By OE Match
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche Cayman S 3.4L 987C 2005-08
This Brake Booster is a OE MATCH Porsche braking system component designed to enhance braking performance by using vacuum pressure to amplify brake pedal force. Mounted between the brake pedal assembly and the master cylinder, the brake booster reduces the physical effort required to apply the brakes, ensuring smooth, responsive, and controlled braking performance.
Fits:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08 (I450 - Cars With Ceramic Brake)
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche Cayman S 3.4L 987C 2005-08 (I450 - Cars With Ceramic Brake)
What This Product Does:
- Amplifies brake pedal force using vacuum assistance
- Reduces driver effort during braking
- Improves braking responsiveness and control
- Works with the brake master cylinder to generate hydraulic pressure
- Enhances overall braking safety and performance
Symptoms Of Wear Or Failure:
- Hard or stiff brake pedal requiring excessive force
- Reduced braking efficiency or delayed response
- Hissing noise caused by vacuum leaks
- Increased stopping distance
- Inconsistent brake pedal feel
- Engine idle irregularities linked to vacuum system leaks
Why Replacement Matters:
- Restores proper brake assistance and pedal feel
- Improves braking response and stopping performance
- Prevents excessive strain on braking components
- Eliminates vacuum leaks affecting engine and brake operation
- Ensures safe and predictable braking under all driving conditions
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99635592300
The product you are viewing cross references to these numbers
OEMatch Brake Servo | Booster — Stopping Power, Consistent Control
OEMatch brake servos and boosters for Porsche models are selected to support application-specific needs and common maintenance, restoration and repair tasks. The range covers vacuum and hydraulic assist types used across classic and modern Porsche models, with components drawn from a large Porsche-focused catalogue prepared for these applications.
Available Types
- Vacuum brake servos for engine vacuum-assisted systems
- Hydraulic brake boosters for vehicles with hydraulic assist
- Complete replacement units including mounting gaskets and check valves
- Exchange and remanufactured cores where listed
Understanding OEMatch Brake Servo | Booster
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original brake servos and boosters. OE (Original Equipment) refers to parts matching original specifications for the brake servos and boosters and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM brake servos and boosters engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models.
The brake servo amplifies the force applied at the pedal before it reaches the master cylinder, reducing driver effort and helping to preserve the intended pedal feel. Servos interface with the vehicle vacuum or hydraulic supply and work alongside ABS and stability systems to provide consistent assistance under varying loads and speeds. OEMatch draws on an extensive parts catalogue and cross-references to help identify correct units for different Porsche model years and braking system variants.
Benefits Include
- Restores correct pedal assistance and predictable brake feel
- Consistent vacuum or hydraulic support for repeatable stopping performance
- Components selected for corrosion resistance and durable sealing
Why Brake Servos | Boosters Wear and Fail
- Diaphragm deterioration or cracks allowing vacuum leaks
- Failed check valves and worn internal seals reducing assistance
- Corrosion or moisture ingress affecting internal mechanisms
- Reduced vacuum supply from engine issues or leaks in vacuum lines
The Importance of Replacing with OEMatch Brake Servo | Booster
Replacing a worn or failing brake servo restores reliable brake assistance and the predictable pedal response expected from Porsche models. Timely replacement reduces driver effort, helps maintain braking balance with ABS and stability systems and prevents progressive loss of stopping confidence. Because the servo is integral to vehicle safety, correct identification and installation are important.
Advantages
- Compatibility with original mounting points and common sensor interfaces where applicable
- Suitable for restoration, routine maintenance and model-appropriate repairs
- Units supplied with common replacement seals and mounting hardware where specified
Support & Advice
Fitting and work on brake servos affects safety-critical systems. Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new fasteners where specified. If you lack the correct tools or are unsure about hidden sensors or vacuum/hydraulic connections, seek professional help and recheck fasteners after initial mileage.