Yamaha - Water Pump Repair Kit - Cooling System Service Kit - 63V-W0078-02-00

Overview

The Yamaha Water Pump Repair Kit | 63V-W0078-02-00 is one of those go-to maintenance kits for keeping smaller outboards running cool and reliable. On 9.9 and 15 horsepower engines, even a slight drop in water flow shows up fast, especially at idle or slow speeds. This kit gives you the key components to rebuild the pump and bring cooling performance back where it should be. If you’re doing routine service or fixing overheating issues, this is a solid, straightforward fix.

Key Features

• Complete Pump Service Kit – Includes essential components needed to restore water pump operation.

• OEM Fit Precision – Built to Yamaha specifications for proper alignment and reliable installation.

• Restores Cooling Flow – Helps bring back strong water circulation and stable engine temperatures.

• Durable Marine Components – Designed to handle continuous use, heat, and water exposure.

Engine & Boat Compatibility

• F9.9 1996-Current
• T9.9 1996-Current
• F15 1996-Current
• 9.9 1996-Current
• 15 1996-Current

FAQs

Q1: When should I replace the water pump kit?
A: Typically during routine service intervals or when you notice weak water flow.

Q2: What are signs the pump needs rebuilding?
A: Weak telltale stream, overheating, or inconsistent cooling performance.

Q3: Does this kit include everything needed?
A: It includes the main internal components required to service the water pump.

Q4: Is this considered regular maintenance?
A: Yes, especially for small engines that rely on consistent cooling.

Q5: Is installation difficult?
A: It requires removing the lower unit, but it’s a standard and manageable repair.

• Supersessions
  63V-W0078-00-00, 63V-W0078-01-00, 63V-W0078-03-00, 63V-W0078-04-00, 63V-W0078-04-00
• Engine Application
  • F9.9 - 1996-Current
  • T9.9 - 1996-Current
  • F15 - 1996-Current
  • 9.9 - 1996-Current
  • 15 - 1996-Current