BULLDOZERS DRT031-2H S/N 41001-UP (D31S/Q/SM-20) SERVICE KIT AND COMPONENT PARTS Section SERVICE KIT AND COMPONENT PARTS DRT031-2H S/N 41001-UP (D31S/Q/SM-20) Komatsu: RIPPER CYLINDER 150010 CONTROL VALVE (3-SPOOL) (1/2) (FOR 3-POINT HITCH OR RIPPER) 150020 CONTROL VALVE (3-SPOOL) (2/2) (FOR 3-POINT HITCH OR RIPPER) 150030 Truck sale: