Mercury Water Pump Impeller 4/4.5/6/7.5/9.8HP Outboard 47-89981 47-65957 18-3039

Water Pump Impeller for Mercury

This water pump impeller circulates cooling water through Mercury outboard engines and cross-references OEM numbers 47-89981 and 47-65957, as well as aftermarket reference 18-3039.

Overview

The Mercury water pump impeller is a replacement cooling-system component for specified Mercury outboards. This water pump impeller drives water circulation through the engine, and the water pump impeller supports routine pump servicing across listed horsepower applications.

Built For Performance

• Designed for outboard water pump service
• Supports cooling-water circulation
• Listed for multiple compact outboard horsepower applications
• Cross-references OEM numbers 47-89981 and 47-65957
• Includes aftermarket reference 18-3039

Fits These Machines

• for Mercury 4 HP outboards
• for Mercury 4.5 HP outboards
• for Mercury 6 HP outboards
• for Mercury 7.5 HP outboards
• for Mercury 9.8 HP outboards

On-The-Job Use

• Water pump replacement during cooling-system service
• Routine outboard maintenance
• Cooling-system repair on listed Mercury engines
• Seasonal inspection and service of compact outboards

Specs At A Glance

Good To Know

Q: What does this impeller do? A: It circulates cooling water through the outboard cooling system to help maintain operating temperature.

Q: Which reference numbers are listed? A: The title lists 47-89981, 47-65957, and 18-3039 for cross-reference purposes.

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