17ZTS - EXCAVATOR 21 VEHICLE MAIN HYDRAULIC SYSTEM Parts group 21 VEHICLE MAIN HYDRAULIC SYSTEM 2160 VEHICLE HYDRAULICS . PILOT SOLENOID VALVE 2161 HYUDRAULIC PUMPS & DRIVES . HYDRAULIC PUMP AND COUPLING HYDRAULIC PUMP 2163 HYD LINES AND HOSES . PILOT LINES PILOT LINES OIL COOLER LINES 2164 HYDRAULIC RESERVOIR, FILTER & COOLER . OIL TANK Select group 21 VEHICLE MAIN HYDRAULIC SYSTEM John Deere: 2160 VEHICLE HYDRAULICS 2161 HYUDRAULIC PUMPS & DRIVES 2163 HYD LINES AND HOSES 2164 HYDRAULIC RESERVOIR, FILTER & COOLER