Brake Caliper Piston, OEM Plus - E46 330i Rear

This is a replacement 42mm caliper piston for the rear of E46 330i and 330ci (not for 330xi). This is one piston for one caliper. Replacing pistons during a caliper rebuild is not always required unless the piston is so badly rusted that it cannot slide in the bore or retain the fluid seal or dust boot.

Our caliper pistons are not sourced from China and not a cheaply cast piece with flaking chrome. These are manufactured from new bar stock, with a durable plating, and have better tolerances than any of the budget pistons you find online.

Sold per piston / per caliper. A new seal and boot kit is highly recommended.