A strong, reliable seal is a small but crucial detail in keeping your outboard running smoothly. The Yamaha O-Ring (6H1-43869-00-00) ensures a tight, leak-proof connection between key engine components, preventing pressure loss and unwanted fluid leaks. As engines endure heat cycles, fuel exposure, and continuous operation, rubber seals can wear down over time—leading to inefficiencies that can impact performance. Replacing a worn O-ring with this genuine Yamaha OEM part keeps your outboard operating at peak efficiency, ensuring everything stays sealed and running as it should.

Designed for Long-Lasting Durability:

• OEM-Precision Fit – Engineered to Yamaha’s exact specifications for a perfect, secure seal.
• High-Quality, Fuel-Resistant Rubber – Built to withstand high temperatures, fuel, and oil exposure.
• Prevents Leaks & Pressure Loss – Helps maintain system efficiency and extends component lifespan.

Ideal for:

• Sealing fuel, cooling, or hydraulic systems to prevent fluid loss.
• Maintaining proper pressure for optimal engine performance.
• Replacing deteriorated or damaged O-rings to restore efficiency.

A failing seal can cause more than just a minor leak—it can lead to costly repairs. Swapping in a Yamaha O-Ring (6H1-43869-00-00) helps keep your outboard leak-free and running strong, no matter where the water takes you.