Jabsco Impeller & Gasket Kit Neoprene Compound,12 blades, Splined drive, Shaft diameter 5/8" (16mm) Imp Diameter 57.1mm, Width 31.5mm THIS JABSCO IMPELLER DIRECTLY REPLACES THE FOLLOWING : Onan 132-0162 impeller Johnson 09-1027B impeller, Volvo Impellers 860203, 3856039-7, 875811-2 Perkins 0460038 Impeller, Yanmar 129470-42530 Impeller