The Sierra 18-3623 Thermostat replaces Yamaha 6E5-12411-02, Yamaha 6E5-12411-00, Yamaha 6E5-12411-01 for Yamaha Outboard applications. It regulates cooling-water flow as the engine warms and cools, helping maintain the intended operating temperature.
Suits outboard models:
Two Stroke: 3AMH, 3BMH, 4ACMH, 4CMH, 5CMH, 6CMH, 8CMH, 8FMH, 25BMH, 25XMH, 30HMH, 30HWH, 30HW, 40XWT, E40XMH
Need help with fitment? Contact us with your engine model and serial number and we'll help check suitability.
What is Sierra 18-3623?
Sierra 18-3623 is an aftermarket thermostat for Yamaha Outboard applications.
Which part numbers cross-reference Sierra 18-3623?
This listing cross-references Yamaha 6E5-12411-02, Yamaha 6E5-12411-00 and Yamaha 6E5-12411-01. See the Cross References & Alternative Products section above for linked alternatives where available.
How can I check whether Sierra 18-3623 fits my Yamaha Outboard application?
Contact us with your engine model and serial number and we'll help check suitability.
Australian Dollars
