931034001100
About this part
Genuine Yamaha 931034001100 (Oil seal) — an OEM replacement part built to Yamaha standards. OEM specification helps avoid common fitment issues and supports long-term reliability on the water.
Why choose genuine Yamaha?
Choosing genuine Yamaha OEM helps avoid problems often seen with pattern parts: mis-sized sealing profiles, inconsistent rubber compounds, poor plating, and connectors that don’t lock correctly. On a marine engine, those small differences can become big issues.
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: when buying multiple items, it’s worth reviewing the same diagram section for related gaskets and seals so everything arrives together.