Genuine Yamaha Oil seal (677)
About this part
This page covers the genuine Yamaha part 9310114M0100 (Oil seal (677)). 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
Gaskets and seals prevent leaks and help systems hold pressure where required. OEM materials and profiles matter — particularly for cooling and gearcase components where correct sealing is critical.
Installation tip: follow correct torque values and sequences, avoid over-tightening, and replace any fasteners that are corroded or stretched.
Warranty
Warranty: 1 year on new genuine parts (subject to correct installation and normal use).
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.