Vertex Complete Gasket Kit with Oil Seals 811997 — Yamaha YZ450F / YZ450FX / WR450F 2018-2023

Product Description

Maintain the integrity of your engine overhaul with the Vertex 811997 Complete Gasket Kit. Designed specifically for high-performance Yamaha 450 engines, this kit provides a complete motor solution, ensuring every junction in your engine and transmission is sealed perfectly against leaks. When performing a full engine rebuild, using high-quality gaskets is the only way to ensure your engine maintains proper compression and fluid pressures over time.

This comprehensive set includes all necessary gaskets and oil seals required to rebuild the entire engine and transmission unit from the ground up. It features precision-formed rubber valve cover gaskets and includes high-quality valve stem seals. The oil seals included are genuine OEM replacement quality, guaranteeing a long-lasting, reliable seal under intense heat and pressure. Proudly made in the USA, this kit is the professional's choice for a leak-free, high-hour rebuild.

Top Features: Vertex Complete Gasket Kit

• Complete Coverage: Includes all gaskets and oil seals for engine and transmission
• Precision Components: Includes formed rubber valve cover gaskets
• Reliable Sealing: Oil seals are genuine OEM replacement quality
• Essential Add-ons: Valve seals included for comprehensive top-end service
• Quality Assurance: Proudly made in the USA

Please review the detailed compatibility data below to ensure an exact fitment match for your motorcycle before finalizing your purchase.

Fitment List

Frequently Asked Questions

Q: Does this kit include the mechanical water pump seal?
A: No, this kit includes most engine and transmission gaskets and seals, but it does not include the mechanical water pump seal. Please source that separately if you are rebuilding the pump.

Q: Are these gaskets as good as OEM?
A: Vertex gaskets are engineered to meet or exceed OEM specifications, and the oil seals provided are genuine OEM replacement quality, ensuring your engine remains sealed and protected.

Expert Pro-Tip: When installing base gaskets or case-halving gaskets, ensure all mating surfaces are perfectly clean and free of old gasket material or silicone residue. Using a light coat of assembly lube on your new oil seals during installation helps prevent the rubber lip from folding or tearing, which is a common cause of post-rebuild leaks.

Recommended Pairings:
o Yamaha 4-Stroke Performance Parts
o YZ450F Performance Upgrades
o High-Quality Engine Break-In Oils

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