290GLC - EXCAVATOR 21 Vehicle Main Hydraulic System Parts group 21 Vehicle Main Hydraulic System 2160 Vehicle Hydraulics . Control Valve Hardware and O-Rings Control Valve Body and Spools (4 Spool Side) Control Valve End Caps (4 Spool Side) Control Valve Body and Spools (5 Spool Side) Control Valve End Caps (5 Spool Side) Control Valve Mounting Brackets 2161 Hydraulic Pumps & Drives . Hydraulic Pump Hydraulic Pump Rotating Group Hydraulic Pump 1 Regulator Hydraulic Pump Regulator 2 Pilot Pump Hydraulic Pump Mounting 2164 Hydraulic Reservoir, Filter & Cooler . Hydraulic Oil Reservoir Select group 21 Vehicle Main Hydraulic System John Deere: 2160 Vehicle Hydraulics 2161 Hydraulic Pumps & Drives 2164 Hydraulic Reservoir, Filter & Cooler