Moose Racing Valve Seal Kit for Yamaha WR450F, YZ450F and YFZ450R/SE (M80-80710)

The Moose Offroad M80-80710 Valve Seal Kit is designed to help restore dependable valve sealing in compatible Yamaha engines. Each seal features contact surfaces engineered for improved sealing performance, helping reduce the risk of oil migration and maintain proper engine operation. The kit is suited for Yamaha WR450F, YZ450F, and YFZ450R/SE applications.
Manufactured with high-temperature Viton® and PTFE materials, these valve seals are built to withstand the heat and demanding conditions associated with performance four-stroke engines. Improved tolerance over OEM-style components supports a precise fit and consistent sealing during operation, making the M80-80710 a practical choice for engine service, rebuilds, and maintenance.
Moose Offroad quality controls every seal to help ensure reliable manufacturing consistency. The kit includes one complete set of intake and exhaust valve seals, providing the components needed to service the valve train without sourcing individual seals separately. Made in the USA, the Moose Offroad M80-80710 combines durable materials, application-specific fit, and comprehensive kit coverage for professional or enthusiast engine work.

Features:

• Improved sealing: Contact surfaces are designed to promote dependable sealing performance.

• High-temperature materials: Constructed with Viton® and PTFE for demanding engine environments.

• Improved tolerance: Engineered to provide improved tolerance over OEM-style seals.

• Complete valve seal set: Includes one full set of intake and exhaust seals.

• Quality controlled: 100% quality controlled for consistent manufacturing standards.

• Made in the USA: Manufactured in the United States.

Ships from Parts Unlimited.