Genuine Yamaha Thermostat
About this part
This page covers the genuine Yamaha part 5LP124110000 (Thermostat). It’s an original OEM component designed to match Yamaha’s factory tolerances for correct fit, reliable function, and long service life in marine conditions.
Why choose genuine Yamaha?
For marine use, OEM specification matters. Yamaha components are designed for salt, humidity, temperature swings, and continuous vibration. If you’re aiming for “fit once, do it right”, genuine parts are typically the safest option.
Notes for this part
Thermostats regulate operating temperature. A stuck thermostat can cause overheating or unstable temperature control. OEM parts help ensure the correct opening temperature and consistent regulation.
Installation tip: renew gaskets/O-rings, clean mating faces, and verify related cooling components (where fitted) are free to move and not blocked by deposits.
Warranty
New genuine parts include a 1-year warranty (correct application and installation required).
Ordering tips
Ordering tip: Yamaha variations can exist within the same year. The safest approach is to confirm the part number against your exact model code / serial range before purchase.