Description
This is a Brake Caliper Piston for a Triumph TR3, TR4 and TR4A. Two are needed per caliper. The pistons are Plasma Nitrided which will give you the life of Stainless at half the price. The Nitriding becomes a part of the metal and will not flake off or separate, you can't buy a harder caliper piston. Cross Ref.# 582-000, 64325561
