Porsche Power Brake Booster TRW 99635592300

The Porsche Power Brake Booster TRW 99635592300, manufactured by TRW (manufacturer part number PSA521), is an OE supplier component engineered to deliver factory-original vacuum brake assistance for select Porsche models. This brake booster is designed for precise compatibility and reliable performance.

Key features:

• OE part number: 996 355 923 00 / 99635592300
• OEM quality for direct fit and function
• Application: Brake Booster (Vacuum)

Verified fitment includes:

• Porsche 911 (Chassis 996): 1999–2005, including Carrera, Carrera 4, Carrera 4S, Targa, GT2, GT3, Turbo, Turbo S, and Anniversary Edition (with specified H6 engines and body styles)
• Porsche Boxster (Chassis 986): 1997–2004, including Base, S, and S Special Edition (with specified H6 engines; some early models require seal set 000 043 204 66)

Engineered for uncompromising brake performance and reliability, the TRW 99635592300 is the correct choice for restoring original braking response to your Porsche 911 or Boxster. Always verify fitment by model and year before installation.