Water pump 4TNE106 123900-42000 123900-42100 for Yanmar

Water pump 4TNE106 123900-42000 123900-42100 for Yanmar

A vehicle' s water pump is a belt-driven pump that derives its power from the engine's crankshaft. Designed as a centrifuge, the water pump draws the cooled fluid through the pump's center inlet from the radiator. It then circulates the fluid outward into the engine and back into the car' s cooling system.