Water Pump Repair Impeller Kit for Yamaha 2 Str 40hp 50hp Outboard 6H4-W0078-A0

Water Pump Repair Impeller Kit for Yamaha

This water pump repair impeller kit for Yamaha outboards is designed for 2-stroke 40hp and 50hp models, with OEM cross-reference 6H4-W0078-A0.

Overview

This water pump repair impeller kit for Yamaha 2-stroke 40hp and 50hp outboards replaces worn impellers to maintain proper cooling. It includes the impeller and necessary components for a complete water pump service, referencing OEM part 6H4-W0078-A0. Ideal for boat owners performing routine maintenance on their Yamaha outboard.

Built For Performance

• Direct replacement for Yamaha 2-stroke 40hp and 50hp outboards
• Matches OEM part number 6H4-W0078-A0 for accurate fit
• Includes impeller and gaskets for a full repair
• Restores water flow to prevent overheating
• Constructed from wear-resistant materials for long service life

Fits These Machines

• for Yamaha 40hp 2-stroke outboard
• for Yamaha 50hp 2-stroke outboard

On-The-Job Use

• Replacing a failed water pump impeller
• Performing scheduled impeller changes
• Maintaining proper cooling in saltwater or freshwater
• Fixing overheating issues on Yamaha outboards

Specs At A Glance

Good To Know

Q: Will this kit fit my Yamaha 40hp 2-stroke outboard? A: Yes, it is designed specifically for Yamaha 2-stroke 40hp and 50hp models, using the OEM part number 6H4-W0078-A0.

Q: How often should I replace the impeller? A: Typically every 1-2 years or after 100 hours of use, but always consult your service manual for exact intervals.

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