5B-550-1 - TRACTOR 70 Hydraulic System Parts group 70 Hydraulic System 70 Hydraulic System Oil Pump Assembly AG 3-Point Hitch Assembly AG Air Brake Assembly AG Drawbar For Implement (Optional) AG Oil Line, Suction AG Oil Tube Assembly, SCV AG PTO Lever Assembly AG Rockshaft Control Linkages AG Rockshaft Distribution Valve AG Rockshaft Housing AG Rockshaft Unit, Assembly AG Wagon, Hitch, 5B AG Single Selective Control Valve, CAB AG Dual Selective Control Valve, Cab AG sale parts diagram catalog online construction equipment excavator tractor