Yamaha - Water Pump Repair Kit - Cooling System Service Kit - C55 - 663-W0078-01-00

Overview

If your cooling stream is starting to weaken or you’re seeing temps creep up, this is the kind of kit you reach for. This Yamaha water pump repair kit is built to freshen up the key internal components and get proper water flow back through the engine. On older two-stroke setups like the C55, staying ahead of cooling system wear makes a big difference. It’s a straightforward service that helps keep everything running cool and steady.

Key Features

• Complete Pump Service Kit – Includes essential internal parts needed to restore water pump function.

• Reliable Water Flow – Helps bring back strong and consistent cooling circulation.

• OEM Yamaha Fitment – Built to match factory specs for proper alignment and sealing.

• Durable Internal Components – Designed to handle continuous water exposure and regular use.

Engine & Boat Compatibility

• C55 1992-1994

FAQ

Q: What are signs this kit is needed?
A: Weak tell-tale stream, overheating, or inconsistent water flow are common indicators.

Q: Should I replace everything or just the impeller?
A: It’s best to replace all included components to avoid repeat issues and ensure proper sealing.

Q: How difficult is installation?
A: It’s manageable if you’re familiar with lower unit service, but alignment and sealing need to be done carefully.

Q: Is this necessary for seasonal maintenance?
A: Yes, especially on older engines, it’s a good preventative step to avoid overheating problems.

• Engine Application
  • C55 - 1992 to 1994