Thermostat Assembly – Fits Yamaha Outboard 2.5-100HP (Replaces Yamaha 66M-12411-01-00) 415HP Product Type Water Pump Repair

Product Type Water Pump Repair Kit Installation Lower Unit Connection Direct Shaft Mount Housing Material Metal/Plastic Composite Housing Color Silver/Black Dimensions 5

Installation: Direct bolt-on OEM replacement

but typically cost significantly more

Engineered for direct-fit replacement

Thermostat Assembly – Fits Yamaha Outboard 2.5-100HP (Replaces Yamaha 66M-12411-01-00) 415HP Product Type Water Pump RepairProduct Details This Yamaha Thermostat Assembly is an essential component designed to maintain proper engine operating temperature by regulating coolant flow. It is engineered for a wide range of Yamaha 4 Stroke Outboards from 2. 5 HP to 100 HP, covering models from approximately 1996 to 2023. It serves as a direct replacement for Yamaha OEM part 66M 12411 01 00 and interchanges with aftermarket references like GHmarine 66M 12411 and PWCParts 66M