210G - EXCAVATOR 21 Vehicle Main Hydraulic System Parts group 21 Vehicle Main Hydraulic System 2161 Hydraulic Pumps & Drives . Hydraulic Pump Mounting Hydraulic Pump Components Hydraulic Pump Rotating Group Hydraulic Pump Regulator (1) Components Hydraulic Pump Regulator (2) Components Pilot Pump Components 2162 Control Valves . Control Valve Mounting Brackets 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 Hardware and O-Rings Solenoid Valve Pilot Signal Manifold (Housing and Gaskets) Pilot Signal Manifold (Valve Section) Pilot Signal Manifold (Pilot Controller Side) Pilot Signal Manifold (Control Valve Side) Pilot Signal Manifold Valves 2164 Hydraulic Reservoir, Filter & Cooler . Hydraulic Filter Restriction Indicator Kit Hydraulic Oil Reservoir Select group 21 Vehicle Main Hydraulic System John Deere: 2161 Hydraulic Pumps & Drives 2162 Control Valves 2164 Hydraulic Reservoir, Filter & Cooler