31556 KIT UNLP NBR B 67DX39G1I

SKU: 3406

CAT Pumps kit 31556 is an NBR integral unloader repair kit for CAT 67DX series pumps, including the 67DX39G1I. The kit includes a complete piston assembly, piston retainer, retainer O-ring, seat, and seat O-ring to rebuild the pump's integral unloader. Service the unloader on the same schedule as the pump seals to maintain pressure control and protect against overpressure.