The Sierra 18-3408 Water Pump Kit replaces Yamaha 6H4-W0078-A0, Yamaha 663-44311-02, Yamaha 6H4-W0078-00-00 for Yamaha Outboard applications. It renews the water-pump components that maintain cooling-water flow through the engine.
Same as 18-3429 but includes Water Pump Housing
Need help with fitment? Contact us with your engine model and serial number and we'll help check suitability.
What is Sierra 18-3408?
Sierra 18-3408 is an aftermarket water pump kit with housing for Yamaha Outboard applications.
Which part numbers cross-reference Sierra 18-3408?
This listing cross-references Yamaha 6H4-W0078-A0, Yamaha 663-44311-02, Yamaha 6H4-W0078-00-00 and Yamaha 6H4-W0078-01-00. See the Cross References & Alternative Products section above for linked alternatives where available.
How can I check whether Sierra 18-3408 fits my Yamaha Outboard application?
Contact us with your engine model and serial number and we'll help check suitability.
Australian Dollars
