For 50 years Sierra has been producing parts engineered to meet or exceed the specifications of marine engine manufacturers and has gained the confidence of engine manufacturers and boat builders to a point of supplying them with OEM parts. Boaters and technicians can be assured a Sierra part will fit right the first time and restore function to OEM specifications.Sierra water pump kits include all you will need to rebuild a sea water pump. An impeller, a wear plate and the required O-Rings and associated fasteners make the task to rebuilding the water pump straightforward. We recommend having a spare impeller (Sierra part no. 18-3056) onboard to be prepared in the event of a failure caused by debris or system blockage.Meets or exceeds manufacturer specificationsComplete kit provides all you will need to rebuild water pumpCompatible with MerCruiser Alpha I generation II drives with serial no. D494569 and aboveFits Honda BF70 and BF90 outboards from 1996-1998Backed by SeaStar Solutions limited 2 years warrantyKit Contains: (3) Impeller gaskets, (1) Seal ring, (1) Impeller, (1) Impeller plate and (1) O-Ring in non-retail packaging