Jabsco 17936-0001P Impeller Jabsco 17936-0001-P Impeller Neoprene - Silhoulette Q - Replaces Perkins 0460027, Volvo Penta 842857, 844683,845796,875697. Replaces Johnson 814B. The "P" at the end of the part number indicates that it is packaged in hard plastic.