6AH121211000
About this part
This page covers the genuine Yamaha part 6AH121211000 (Valve, exhaust). 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?
OEM parts are produced to the same specification as the original component fitted at the factory. That means correct materials, correct dimensions and consistent fit — especially important on units where corrosion, heat cycles, and vibration are normal.
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: when buying multiple items, it’s worth reviewing the same diagram section for related gaskets and seals so everything arrives together.