Johnson Pump 09-701B-1 Impeller (MC97)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;