Porsche Power Brake Booster 996-355-923-00

Power Brake Booster

Note: Check vehicle applications tab for fitment details.

Important Technical Information:

Due to a modification in the body firewall, the brake booster bellows and seal at the body firewall were changed during model year 2000. The replacement brake booster are available only with the latest style bellows. The vehicles that will require modification when replacing the brake booster were produced before September 13, 1999, starting with the following VIN numbers:

Model: 996 Carrera/Carrera 4
Year: From 1999 to 2000

99 1YS 62 0337 (Coupe)
99 5YS 65 0546 (Cabriolet)

Model: 986 Boxster
Year: From 1997 to 2000

98 XYS 62 0332 (Boxster)
98 XYS 66 0090 (Boxster S)
98 4YU 62 1423 (Boxster)
98 4YU 66 0106 (Boxster S)

In order to install the brake booster with the latest style bellows in these models, you must order the brake booster and the following parts: 

000-043-204-66 Brake Booster Seal Kit
996-423-165-05 Brake Pedal Pushrod
996-423-307-00 Threaded Bushing (For Fastening Pushrod to Brake Pedal)
996-423-308-00 Pin (For Fastening Brake Pushrod to Brake Pedal)

The brake pedal is also required for 1997 Boxsters:

996-423-091-03 Brake Pedal - Manual Transmission
996-423-091-03 Brake Pedal - Tiptronic Transmission 

Reference Part Number: 996-355-923-00
Manufacturer: TRW (OEM)
Cross Ref: PSA521

Vehicle Fitment