35C - EXCAVATOR 21 Vehicle Main Hydraulic System Parts group 21 Vehicle Main Hydraulic System 2161 Hyd Pumps & Drives . HYDRAULIC PUMP AND PUMP SUPPORT (COMPLETE) Hydraulic Pump Components 2163 HYD LINES & HOSES . OIL RESERVOIR HYDRAULIC HOSES AND LINES HYDRAULIC PUMP HOSES Oil Reservoir Lines MAIN CONTROL VALVE HOSES SWING MOTOR, GEARBOX, ROTARY MANIFOLD AND MAIN CONTROL VALVE HOSES (SN -005217) ( - 005217) SWING MOTOR, GEARBOX, ROTARY MANIFOLD AND CONTROL VALVE HOSES (SN 005218- ) (005218 - ) ROTARY MANIFOLD AND MAIN CONTROL VALVE HOSES (SN -005217) ( - 005217) ROTARY MANIFOLD AND MAIN CONTROL VALVE HOSES (SN 005218- ) (005218 - ) MAIN CONTROL VALVE HOSES MAIN CONTROL VALVE HOSES 2164 HYD RESERVOIR, FILTER & COOLER . OIL RESERVOIR (COMPONENTS) Select group 21 Vehicle Main Hydraulic System John Deere: 2161 Hyd Pumps & Drives 2163 HYD LINES & HOSES 2164 HYD RESERVOIR, FILTER & COOLER