47-89981 Water Pump Impeller for Mercury Mariner 4HP 4.5HP 6HP 7.5HP 9.8HP | JLM Marine family-yamaha-150tjrw Thoroughly clean the mating surfaces

Thoroughly clean the mating surfaces of the housing and cover

Note: Some sellers may only include the thermostat without the seals

or a loose

Use the included gear oil pump to refill with fresh gear oil until it flows from the upper vent

3H6-04000-7 Nissan NSF9

47-89981 Water Pump Impeller for Mercury Mariner 4HP 4.5HP 6HP 7.5HP 9.8HP | JLM Marine family-yamaha-150tjrw Thoroughly clean the mating surfacesWater Pump Impeller for Mercury Mariner 4HP 4. 5HP 6HP 7. 5HP 9. 8HP Outboard This high quality aftermarket water pump impeller is designed to fit Mercury Mariner 2 Stroke outboards from 4HP to 9. 8HP, covering models manufactured between 1966 and 1978. Engineered for reliable cooling system performance, this impeller ensures your engine operates at optimal temperature during every outing. Direct replacement for OEM part numbers 47 89981, 47 65957,