Genuine P4 Front Caliper Piston and Seal Service Kit by Brembo. 

Brembo Part nr - 120279911

Please note that dust seals are not supply in this kit.

This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. 

Hight of pistons is 16.2mm

Calipers service kit for the P4 calipers include:

2x pistons 34mm

2x pistons 30mm 

4x fluid seals

Please note:

This service kit its only for one caliper. Its strongly recommended to service both calipers at the same time as of this you will need two kits.