Product Description
These stainless steel caliper pistons for E30 325e/325i rear calipers are an excellent addition to your caliper rebuild. Brake fluid absorbs moisture which sits against your steel calipers and original pistons. It's quite common to find rust inside the caliper bores. Often it's the rust that binds or freezes a caliper, requiring a piston and seal replacement. Your caliper may only need a good scrubbing to be returned to service. These are made from 304 stainless and then polished for smooth operation. They are a direct replacement for the stock pistons in your Ate caliper.FITS REAR CALIPER. PRICE IS FOR THE PAIR.
Each piston measures 33mm in diameter with a depth/height of 48mm.