Fits the 12.19" Wilwood Big Brake Kit Front calipers. Piston dimension 1.38 x 1.05 Aluminum.

Pistons sold each - 4 required per caliper.

For Wilwood Big Brake Kit replacement Brake Pads, see NMB2045.

For Wilwood Big Brake Kit replacement rotors, see NMB2047.

For Wilwood Big Brake Caliper rebuild kit, see NMB2070.

For Wilwood Big Brake Kit, see NMB2041. 

MINI recommends Brake Fluid replacement every 2 years to maintain the optimum performance of the ABS brake system. For High Performance Brake Fluids, see the following:

• Ate Performance Brake Fluid - Very Good
• Motul Racing Brake Fluid - Better
• Torque Racing Brake Fluid - Best

For 'standard' replacement Brake Fluid, see Mini Cooper Brake Fluid Pentosin DOT4.