Water Pump Impeller Repair Kit – Fits Yamaha 9.9HP/15HP Outboard (Replaces 63V-W0078-01) 425HP Use a light coat of

Use a light coat of grease on the impeller to ease installation

rough or erratic idling

Reinstall the cover plate and tighten the screws evenly

You should also cross-reference your existing part number with the "Part Number Matrix" to ensure it's a match

applying a marine-grade thread sealant or Teflon tape to the sensor's threads before installation is highly recommended to create a leak-proof seal

Water Pump Impeller Repair Kit – Fits Yamaha 9.9HP/15HP Outboard (Replaces 63V-W0078-01) 425HP Use a light coat ofProduct Details This Water Pump Impeller Repair Kit is designed to service Yamaha 9. 9HP and 15HP two stroke outboard engines from 19962009 and 9. 9HP 15HP four stroke models from 19982006. It contains all necessary components to restore your engine's cooling system performance. It serves as a direct replacement for Yamaha OEM part numbers 63V W0078 00, 63V W0078 01, 63V W0078 02, 63V W0078 03, and the latest 63V W0078 04 00, as well as Sierra