Johnson impeller kit w/gaskets for Malibu monsoon engines 99-19 and Axis monsoon engines 09-15. Also will be on the new M-Series engine from 2022-current. For 19-21 if you had your impeller housing converted this will be the correct impeller. Double-check your raw water pump before ordering.
For M-Series Engines:
Sherwood Impeller Housing:
Uses the Keyway Impeller E100037
Johnson Impeller Housing:
Uses the Splined Impeller
(Malibu starting using the Johnson Pump Housing in the M series engines starting in Oct 2021 with select batches of engines. All Indmar engines will use the Johnson pump)