Yamaha Water Pump Kit 150 175 200 225hp 1984-91 6G5-W0078-A1-00 6G5-W0078-01-00

Water Pump Kit for Yamaha

This water pump kit for Yamaha outboard engines includes the impeller, gaskets, and seals needed for a complete cooling system rebuild, referencing OEM part numbers 6G5-W0078-A1-00 and 6G5-W0078-01-00.

Overview

The water pump kit is a direct replacement cooling component for Yamaha outboards rated 150, 175, 200, and 225 horsepower built between 1984 and 1991. This water pump kit ensures proper water flow to prevent overheating and maintain engine performance. It is a complete kit with all necessary parts for a straightforward installation.

Built For Performance

• High-quality impeller designed for reliable water flow
• Precision-machined wear plate for consistent pressure
• Includes all required gaskets and seals for a leak-free seal
• Constructed to match OEM specifications for exact fit
• Resistant to wear and corrosion for long service life

Fits These Machines

• for Yamaha 150hp outboard (1984-91)
• for Yamaha 175hp outboard (1984-91)
• for Yamaha 200hp outboard (1984-91)
• for Yamaha 225hp outboard (1984-91)

On-The-Job Use

• Replaces a worn impeller to restore cooling system efficiency
• Commonly used during routine water pump service intervals
• Essential for preventing overheating in saltwater or freshwater operation
• Ideal for do-it-yourself mechanics and professional technicians

Specs At A Glance

Good To Know

Q: What does this water pump kit include? A: It includes the impeller, gaskets, and seals necessary for a complete water pump rebuild.

Q: How often should the water pump be replaced? A: Typically every 2-3 seasons or when overheating occurs, depending on usage.

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