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: ST762271 Return Line Hoses, Fittings, PFC-System, W/O Hydraulic Trailer Brake ST796010 Return Oil Parts, Steering / Brake, W/O AutoTrac™ ST807308 Fittings, Priority 1 Valve Block, W/ PFC-Hydraulics, W/ AutoTrac™ ST707238 Steering Control Unit, LAGU 160/80, LD ST465182 Couplers, 2 Line Air Trailer Brake System ST731005 Bleeding / Pilot Lines, Hydraulic / Pneumatic Trailer Brake ST945085 Inlet Valve / Priority 1, PFC-Hydraulics ST796018 Oil Lines, Steering Valve, W/ AutoTrac™ ST723245 Secondary Brake ST723265 Return Line Hoses, Fittings, PC-System, W/ Hydraulic Trailer Brake, W/ TLS™