Genuine Yamaha Thermo unit
About this part
Looking for Yamaha part 1S4835910100? This is the OEM item described as “Thermo unit” and is manufactured to Yamaha specifications for dependable operation, consistent quality, and straightforward installation.
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
This is a genuine Yamaha OEM component intended for service and repair work on compatible Yamaha products. OEM specification supports correct fit, correct function, and consistent quality.
If you’re unsure it’s correct for your engine, confirm using your exact model code/serial range and the relevant parts diagram before ordering.
Warranty
New genuine parts include a 1-year warranty (correct application and installation required).
Ordering tips
Ordering tip: if you’re mid-repair, check the diagram for one-time-use seals, O-rings, and fasteners listed next to this part so you can complete the job without delays.