Water Pump Kit – Fits MerCruiser Alpha, Bravo & TRS (Replaces 46-807151A14, 807151A7) 160-430HP 2 x O-Ring (25-21836)

2 x O-Ring (25-21836)

What does "bi-directional" mean and why is it important

Complete kit includes the housing

noting the rotational direction of the vanes

It is not compatible with models that use a cone clutch

Water Pump Kit – Fits MerCruiser Alpha, Bravo & TRS (Replaces 46-807151A14, 807151A7) 160-430HP 2 x O-Ring (25-21836)Product Details This Sierra 18 3150 Water Pump Kit Fits MerCruiser Alpha, Bravo & TRS is a complete assembly designed for MerCruiser Alpha engines with freshwater cooling (FWC), all Bravo I II III and TRS sterndrives, and various inboard marine engines. It is engineered for models that utilize a plastic, one piece body sea water pump. This kit serves as a direct replacement for MerCruiser part numbers 46 807151A14 and 46 807151A7, as well as GLM 12088