This is a impeller kit for Johnson Evinrude OMC outboard engines Replaces Johnson Evinrude OMC 377230 777213 777821 Sierra 18-3083 Mallory 9-45209 and GLM 89660 Compatibility with Johnson Evinrude OMC 35hp 40hp 50hp and 55hp outboard motors, ensuring that a wide range of outboard engine needs are met Made of superior materials, this impeller kit offers outstanding durability and reliability, guaranteeing excellent performance of your outboard engine for a long time Regular inspection and timely replacement of your impeller are crucial for maintaining optimal engine performance. It's recommended to inspect the impeller frequently and replace it annually or after every 100 hours of use, especially in sandy water conditions. If your impeller has been in use for three or more years, it's imperative to replace it. Over time, impeller blades harden and lose flexibility, leading to a fixed shape that can degrade engine performance or, in severe cases, result in complete failure

Fits the following Johnson Evinrude OMC outboards：

35hp 1958-1959

40hp 1960-1970

50hp 1971-1978

55hp 1971-1978