Restore older OMC water pumps with a complete service kit. Sierra parts are engineered to meet or exceed the specifications of marine engine manufacturers and have earned the confidence of the marine industry. Sierra water pump kits are designed and packaged to simplify sourcing parts. Each kit includes all the parts and gaskets needed to restore the water pump and eliminates the time spent researching and sourcing the individual components. We recommend having a spare impeller (Sierra p/n 18-3086) for unexpected failures caused by debris or clogged intakes. Key Features Engineered to meet or exceed OEM specifications Kit includes; impeller housing, impeller, impeller plate and O-rings Fits many OMC engines manufactured between 1964—1986 excluding Cobra models 18-3386 Application Guide ApplicationOEM Part NumbersGLM12190Mallory9-45286OMC Stern Drive983218The Sierra Engine Parts SelectorIn addition to impellers, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see ourEngine Parts Selector, where you can search by engine make, serial number and model or year of manufacture.