This is a A-17303-73030 Pump, Water PN: 17303-73030Main Description As Following : A-17303-73030 Pump, Water P.N: 17303-73030 This water pump is completely new, from the seal to the housing. It has a 5" diameter, 1/2" belt groove, and fits the Kubota Tractor M4030 and M5030. (NOTE: replaces 1730373030, SW07457)Dim A (1): 5" diam.Dim B (2): 1/2" belt groove Replaces: 1730373030 KUBOTA , Crossed From: SW07457 , Found in Section & Models : Cooling Systems > Water Pumps, Pulleys, & Gaskets, Kubota TRACTOR: M4030, Kubota TRACTOR: M5030 Associated Items : New Also A-KU-O-M4030, A-KU-O-M4030 And : This water pump is completely new, from the seal to the housing. It has a 5" diameter, 1/2" belt
groove, and fits the Kubota Tractor M4030 and M5030. (NOTE: replaces 1730373030, SW07457) Dim A (1): 5" diam. Dim B (2): 1/2" belt groove