Water Pump Impeller Kit – Fits Mercury/Mariner 2-Cycle 30-70 HP (Replaces 46-77177A3, 77177A3) family-mercury-140hp inspect the belt at every

inspect the belt at every service interval and plan for replacement every 3-5 years

Compatibility: Fits 6 HP through 235 HP models (1983–1991)

Install the impeller into the housing

Replace Oil Filter: Drain the engine oil and remove the old oil filter

Insert the new Woodruff key into the driveshaft slot and guide the new impeller onto the shaft

Water Pump Impeller Kit – Fits Mercury/Mariner 2-Cycle 30-70 HP (Replaces 46-77177A3, 77177A3) family-mercury-140hp inspect the belt at everyWater Pump Impeller Kit Fits Mercury Mariner 2 Cycle 30 70 HP This water pump impeller repair kit provides a complete solution for servicing the lower unit water pump on a wide range of Mercury and Mariner 2 stroke outboard engines from 30 HP to 70 HP (19761997). It is designed to restore cooling system performance and prevent engine overheating. Directly replaces Mercury OEM part numbers 46 77177A3 and 77177A3, as well as aftermarket parts from