6H445114A100
About this part
Looking for Yamaha part 6H445114A100? This is the OEM item described as “Gasket, upper casing” and is manufactured to Yamaha specifications for dependable operation, consistent quality, and straightforward installation.
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
Installation tip: follow correct torque values and sequences, avoid over-tightening, and replace any fasteners that are corroded or stretched.
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.
Warranty
1-year warranty applies to new parts (terms apply; damage from incorrect installation isn’t covered).
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.