Yamaha - Water Pump Repair Kit - Engine Models 6 & 8 - Cooling System Service Kit - 6N0-W0078-A0-00

Overview

The Yamaha Water Pump Repair Kit | 6N0-W0078-A0-00 is one of those maintenance kits you don’t skip if you want your small outboard running cool and reliable. On 6 and 8 horsepower motors, even a slight drop in water flow shows up fast, especially at idle. This kit gives you the core components to rebuild the pump instead of chasing individual parts. If you’re doing routine service or fixing cooling issues, it’s a solid, complete solution.

Key Features

• Complete Pump Rebuild Kit – Includes essential components needed to restore full water pump performance.

• OEM Fit Precision – Built to Yamaha specifications for proper alignment and dependable operation.

• Restores Cooling Efficiency – Helps bring back strong water flow and stable engine temperatures.

• Compact Marine Design – Designed specifically for small outboards with consistent performance in tight housings.

Engine & Boat Compatibility

• 6 1997-2000
• 8 1996-2009

FAQs

Q1: When should I replace the full water pump instead of just the impeller?
A: If internal parts like plates or seals are worn, replacing everything together is the better option.

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

Q3: Does this kit include everything needed for the job?
A: Yes, it includes the main components required for a full pump service.

Q4: Is this routine maintenance?
A: Yes, especially for small engines that rely heavily on consistent cooling flow.

Q5: Is installation difficult?
A: It requires lower unit removal, but it’s a standard and manageable job for most setups.

• Supersessions
  6G1-W0078-A1-00, 6G1-W0078-01-00, 6G1-W0078-00-00
• Engine Application
  • 6 - 1997 to 2000
  • 8 - 1996 to 2009