770B - GRADER, MOTOR 2160 HYDRAULIC SYSTEM Parts group 2160 HYDRAULIC SYSTEM 2160 HYDRAULIC SYSTEM . REPLACEMENT HYDRAULIC PUMP ASSEMBLY Hydraulic Pump - Model LC1 (6 IN.3) Hydraulic Pump Stroke Control Valve (6 IN.3) Hydraulic Pump And Stroke Control Valve Overhaul Kit, 6 IN 3 Hydraulic Pump - Model JF1 (4 IN.3) Hydraulic Pump Stroke Control Valve (4 IN.3) Hydraulic Pump And Stroke Control Valve Overhaul Kit (4 IN.3) HYDRAULIC PUMP DRIVE AND SUPPORT HYDRAULIC PUMP JACK SCREW Hydraulic Pump Oil Lines And Hoses (6 IN.3) ( - 543489) Hydraulic Pump Oil Lines And Hoses (6 IN.3) (543490 - ) HYDRAULIC PUMP SEAL DRAIN HYDRAULIC OIL COOLER BYPASS VALVE HYDRAULIC OIL COOLER AND BYPASS VALVE ( - 543489) HYDRAULIC OIL COOLER AND BYPASS VALVE (543490 - ) FUNCTION RETURN OIL FILTER ( - 543489) FUNCTION RETURN OIL FILTER (543490 - ) Function Return Oil Filter (FWD Pump Case) (543490 - ) HYDRAULIC CONTROL VALVE ASSEMBLY Hydraulic Control Valve Section (Left Blade Lift, Right Blade Lift, Scarifier) Hydraulic Control Valve Section (Wheel Lean, Circle Side-Shift, Blade Pitch, Blade Side-Shift) Rear Steering Valve Section Hydraulic Control Valve Section (Circle Rotate) HYDRAULIC CONTROL VALVE INLET AND OUTLET SECTIONS MAIN HYDRAULIC CONTROL VALVE HOSE AND FITTINGS CONTROL VALVE PRESSURE AND RETURN LINES ( - 543489) CONTROL VALVE PRESSURE AND RETURN HYDRAULICS (543490 - ) Replacement Hydraulic Control Valve Section (Left Blade Lift, Right Blade Lift, Scarifier) Replacement Hydraulic Control Valve Section (Wheel Lean, Circle Side-Shift, Blade Pitch, Blade Side- REAR STEERING VALVE SECTION (REPLACEMENT) Replacement Hydraulic Control Valve Section (Circle Rotate) Hydraulic Control Valve Inlet And Outlet Sections (Replacement) MAIN HYDRAULIC CONTROL VALVE HOSE AND FITTINGS (REPLACEMENT)