Brake Caliper Piston – Ø 38mm × 29mm – Porsche 911 (Rear) & 930 Turbo (Front)

Replacement brake caliper piston (38mm diameter, 29mm height) suitable for Porsche 911 (rear axle) and 930 Turbo (front axle). Replaces OE numbers 90135299300, 93035155104.

• Brake caliper piston (replacement)
• Dimensions: Ø 38 mm × 29 mm (height)
• Replaces OE: 90135299300, 90135209911, 93035155104
• Suitable for: Porsche 911 (rear) & 930 (front)
• Important: Please check the dimensions of the old part before ordering!

This high-quality replacement brake caliper piston is designed for the repair of various Porsche braking systems. With a diameter of 38 mm and a height of 29 mm, it corresponds to the specifications for various caliper types (e.g., A-caliper or M-caliper, depending on the version).

The piston serves as a replacement for corroded or damaged original parts and covers several reference numbers (90135299300, 90135209911, 93035155104). Replacement is essential to ensure the free movement of the brake, prevent uneven pulling, and avoid consequential damage to the caliper housing.

Important note on fitment accuracy: Due to the long production period and the wide range of braking system options for Porsche, it is absolutely essential that you measure the size of your installed pistons before ordering (diameter and height).

Technical Data

• Diameter: 38 mm
• Height: 29 mm
• Reference numbers: 90135299300, 90135209911, 93035155104

Compatibility

Please check dimensions. Suitable for:

• Porsche 911 (F-model & G-model) – Rear Axle
  Model years 1969–1989
  Incl. 911 S, 911 L, 911 2.7, SC, Carrera 3.2
• Porsche 930 Turbo – Front Axle
  Early models / Specific calipers (please check)

Scope of Delivery

• 1 × Brake caliper piston (38 × 29 mm)

Note

Price per piece. Please be sure to check the diameter and height of your old piston before ordering.