ARO 77430 Stainless Steel Ball Seat

The ARO 77430 is a stainless steel ball seat for ARO piston pump lowers. In a ball check valve, the ball drops onto the seat to close the passage and lifts off it to let fluid through. The contact line between ball and seat is what stops backflow, so a scored or pitted seat lets fluid slip back and cuts output.

Pump parts lists place this seat in the 67372-C6F and 67372-CEF lower pump ends. The spec table also names the 66942-X3X and 66942-X6X models. Check which of these matches the model stamped on your pump before you order. If you are servicing the check valve, inspect the ball at the same time.

Used In These ARO Pumps

• ARO 67372-C6F
• ARO 67372-CEF