Parts list: № Number Qty Name Options 1 R561464 2 Brake Rear Axle Brake Piston, C20 2 RE304936 6 Spring Assembly 3 R561462 2 Plate 4 R562295 4 Plate 5 RE587237 4 Brake Disk 6 R320895 2 O-Ring 7 R562193 2 O-Ring Next page: ST1011622 Brake Valve, W/ Air Trailer Brake 2 Lines, W/O Hydraulic Trailer Brake ( - 071001) ST1011908 Brake Valve / Chassis Wiring Harness , W/ Air Trailer Brake (071001 - ) ST1011903 Brake Valve / Chassis Wiring Harness , W/ Hydraulic Trailer Brake (071001 - ) ST1011606 Brake Valve, W/ Secondary Brake, W/ Hydraulic Trailer Brake ( - 071000) ST1011904 Trailer Brake Valve (071001 - ) ST1012052 Brake Valve, W/ Secondary Brake, W/O Hydraulic, Front Axle and Air Trailer Brake