Impeller Replacement Kit. A worn or damaged impeller can cause system failure or engine breakdown. Johnson Pump brand impellers are developed and manufactured for maximum flow and long life. With a genuine spare impeller from Johnson Pump, you can also be sure that you are getting the quality required by engine manufacturers and professionals. Johnson Pump 09-701B-1. Sherwood 9959K. Jabsco 18838-001. Engines/Pump Chris Craft; Chrysler Marine; Commander; Crusader; Glastron Boat Co.; Gray Marine; Interceptor; Onan; OMC; Pathfinder VolksWagon Eng.; Perkins Eng. U.S.; Plesurecraft Marine; Universal Medalist; Volvo Penta; Yamaha; Westerbeke 24102; Sherwood 11353; Pleasure Craft 302 351; Chris Craft 350; Onan MDL3,4 A worn or damaged impeller can cause system failure or engine breakdown. Johnson Pump brand impeller Sherwood 9959K. Jabsco 18838-001 Engines/Pump . Chris Craft; Chrysler Marine; Commander; Crusader; Glastron Boat Co.; Gray Marine; In