Water Pump Impeller 47-89983T For Mercury 30/35/40/45/50/60/65/70HP Outboard

Water Pump Impeller for Mercury

This water pump impeller, referencing OEM part 47-89983T, moves coolant through the outboard's cooling system to prevent overheating.

Overview

This water pump impeller for Mercury outboards is a direct replacement for the factory 47-89983T part. It maintains proper water flow to keep the engine running cool. The water pump impeller is essential for cooling the lower unit during sustained operation.

Built For Performance

• Precision molded fins provide consistent water pumping action
• Neoprene rubber construction resists heat and flex fatigue
• Correct factory dimensions ensure a tight fit inside the pump housing
• Replaces worn impellers to restore cooling system efficiency
• Compatible with Mercury outboard cooling system

Fits These Machines

• for Mercury 30HP Outboard
• for Mercury 35HP Outboard
• for Mercury 40HP Outboard
• for Mercury 45HP Outboard
• for Mercury 50HP Outboard
• for Mercury 60HP Outboard
• for Mercury 65HP Outboard
• for Mercury 70HP Outboard

On-The-Job Use

• Replace during routine water pump service every season
• Prevents engine overheating during long idling or high-speed runs
• Restores cooling flow after ingestion of debris or sand
• Essential for maintaining dependable operation in saltwater or freshwater

Specs At A Glance

Good To Know

Q: How often should the water pump impeller be changed? A: Most manufacturers recommend replacing it every one to two seasons or after 100 hours of use, whichever comes first.

Q: What happens if the impeller wears out? A: A worn impeller can reduce coolant flow, leading to overheating and possible engine damage. Inspect it during routine maintenance.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.