UF70391 Piston Pump O-ring--Replaces number C0NNB997A

Replaces number C0NNB997A,, 47697560, 81802255, C0NNB997AZZ

Fits: 501, 600, 601, 700, 701, 800, 801, 900, 901, 2000-4 Cyl., 4000-4 Cyl.

O-Ring, large one that mounts between manifold and pump.