No need to look up each individual part These kits contain all necessary replacement parts to rebuild one brake caliper assembly Note: One Front brake caliper kit required to do complete job for: XS400D/E/F, SR500E/F/G/H, XS500C/D/E, XJ650RJ Seca, XS650 Twins All, XS750D/2D/E/F Note: Two Front brake caliper kits required to do complete job for: XS850G/H, XV920RH/RJ, XS1100E Order 1 kit for rear caliper use Brake caliper piston and brake caliper pad spring not included in kit