Water Pump Impeller – Fits Johnson/Evinrude OMC 40 HP (Replaces 390286, 0390286, 777835, 0777835) 100HP It features a square tooth

It features a square tooth profile just like the original

if you use fuel from questionable sources or notice performance issues

Carefully remove the old air filter element

Reinstall the exhaust manifold

2L MPI SKI 6

Water Pump Impeller – Fits Johnson/Evinrude OMC 40 HP (Replaces 390286, 0390286, 777835, 0777835) 100HP It features a square toothProduct Details This is a direct replacement Water Pump Impeller for Johnson Evinrude OMC 40 HP 2 stroke outboard engines. It is designed to fit models manufactured between 19741976, 19811987, and specifically a range of models from 19831986, ensuring reliable cooling performance. This part serves as a direct interchange for OEM numbers 390286, 0390286, 777835, and 0777835, and aftermarket references including Sierra 18 3366, CEF 500353, Mallory 9