StayCoolPumps Impeller Kit Replaces Sherwood 09959K New Impeller Kit Includes Impeller , Gaskets & O-ring Replaces Sherwood 09959K-SHW Replaces: Sierra 18-3060 , 18-3046 , Crusader 20300 , Pleasurecraft R061015 and more. (see below) Fits Sherwood pump numbers: G9901 , G9902 , G9903 , G15 , G21 , G30-2 , G30-2B , J70 , K75 , K75B