StayCoolPumps Impeller Kit Replaces Westerbeke 46622 Sierra 23-3306 New Impeller Kit contains impeller , screws , and o-ring Replaces: Westerbeke 46622 , 046622 , Sierra 23-3306 Includes: Impeller , 4ea ss screws and O-ring Fits pumps number : 46120 , 42026 , 55624