76179 KIT REPAIR UNL NBR B

SKU: 3522

CAT Pumps kit 76179 is an NBR integral unloader repair kit for CAT 3DNX, 4DNX, 3SPX, and 4SPX series pumps with integral unloaders. The kit includes a complete piston assembly, piston retainer, retainer O-ring, seat, and seat O-ring. Rebuild the unloader with this kit on the pump's regular seal service schedule to maintain pressure control and prevent overpressure.