It is not compatible with models that use a cone clutch
noting the rotational direction of the vanes
What does "bi-directional" mean and why is it important
Diesel (Low-pressure systems) Connection 3/8" (10mm) Hose Barbs on both ends Housing Material NBR (Nitrile Butadiene Rubber) with aluminum alloy components Housing Color Black Dimensions Approximately 15 cm × 5 cm × 5 cm Weight Approximately 0
Please check your specific model and year against the lists below to ensure correct fitment
Water Pump Kit – Fits MerCruiser Alpha, Bravo & TRS (Replaces 46-807151A14, 807151A7) 160-430HP It is not compatible withProduct 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