Parts list: № Number Qty Name Options 1 L111978 2 Piston MARKED L111978 2 AL181918 6 Spring 3 L56243 2 O-Ring 4 L56246 2 O-Ring 5 AL171954 2 Brake Disk TK = 4.9 mm (0.192") 6 L114053 2 Disk TK = 22 mm (0.866") Next page: ST1026944 Brake Lines, Bleed Valve, Foot Brake, W/O Air Trailer Brake, W/O Hydraulic Trailer Brake, W/ Secondary Brake (115988 - 673928) ST723088 Adaptor Fitting, Quick Connectors ST898753 Brake Disks, Rear Axle, W/ Power Fill Brake, W/ Transmission Oil Evacuation (LH Illustrated) ST971200 Brake Lines, Bleed Valve, Foot Brake, W/O Air Trailer Brake, W/O Hydraulic Trailer Brake, W/ Secondary Brake (673929 - 999999), (100001 - 115987) ST983625 Brake Lines, Bleed Valve, Foot Brake, W/O Air Trailer Brake, W/O Hydraulic Trailer Brake, W/O Secondary Brake (673929 - 999999), (100001 - 115987) ST983651 Brake Line, Bleed Valve, Foot Brake, W/O Air Trailer Brake, W/ Hydraulic Trailer Brake, W/O Secondary Brake (673929 - 999999), (100001 - 115987) ST983558 Oil Lines, Foot Brake, W/ Power Fill Brake, W/O Secondary Brake ST971184 Oil Lines, Foot Brake, W/ Secondary Brake ST898754 Brake Disks, Rear Axle, Heavy Duty, W/ Power Fill Brake, W/ Transmission Oil Evacuation (LH Illustrated)