836-0001-P Jabsco Impeller Neoprene Jabsco 836-0001-P Impeller Neoprene Impeller, 9 Blades, 1 Inch Shaft, Spline Drive, Brass Insert. Replaces Cummins 160596, 166758, 556540, 556850, 21601R. Replaces Detroit Diesel 5193553