Fits: Kohler Pump GM28487; Fits Models 4EF, 5E, 6EF, 7.3E, 4 EFCD, 5 ECD, 6 EFCD, 7.3 ECD,
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Comments about Sierra Impeller Kit, Kohler 359978:
This was an exact fit for my Kohler generator. It was easy to install off the back side of the sea water pump. I would suggest coating the impeller in a liquid dish detergent for lubrication. In the case of my pump turning the impeller clockwise (the direction the pump flows) while inserting it was ensured all the blades of the impeller were facing the right direction.