YAMAHA GASKET 6H4-14198-01

Function and technical context

This gasket is part of the Yamaha engine sealing systems, sealing critical connections between mechanical components to prevent coolant, oil or water leaks depending on their specific location in the engine block. Its integrity is essential to maintain the internal pressure of the cooling system and preserve the optimal operating conditions of the propellant. Deterioration or leakage in this seal compromises the effectiveness of the cooling, and may cause overheating of the engine and progressive damage to other internal parts. On boats, where salinity and corrosion accelerate wear, this gasket requires periodic attention to ensure reliable operation.

When to replace this part?

Any signs of visible leakage around the installation area, abnormal loss of coolant, or changes in operating temperature indicate that the seal has lost effectiveness and should be replaced without delay. It is recommended to include the inspection of joints in each seasonal inspection, especially before intensive work; Preventive replacement at scheduled maintenance prevents costly on-water emergencies and extends engine life. Changing this part preventively is always cheaper than repairing damage due to overheating or water ingress into the system.

Engine Compatibility Table

Equivalent manufacturer part numbers