66E-1131C-10-00 Power Valve Cover Joint for Yamaha XL 800 2000-2001

Power Valve Cover Joint for Yamaha

This power valve cover joint for Yamaha is a direct replacement sealing component that fits between the power valve cover and cylinder on 66E-series two-stroke marine engines, cross-referencing OEM part 66E-1131C-10-00.

Overview

This power valve cover joint for Yamaha seals the power valve housing area on 800cc two-stroke jet boat engines to help keep exhaust gases and oil where they belong. The joint provides a fresh sealing surface where the original has hardened, cracked, or blown out. It suits riders and home mechanics servicing a Yamaha XL 800 engine.

Built For Performance

• Cross-references OEM part number 66E-1131C-10-00 for straightforward lookup
• Shaped specifically for the 66E power valve cover mounting surface
• Replaces a hardened or leaking original joint to help restore a clean seal
• Direct-fit design that installs in the same location as the factory piece
• Made for two-stroke marine power valve assemblies, not generic gasket stock

Fits These Machines

• for Yamaha XL 800, 2000-2001

On-The-Job Use

• Replacing a blown or weeping power valve cover joint during top-end service
• Routine engine refresh on an 800cc two-stroke jet boat
• Sealing the power valve area after removing the cover for inspection
• Keeping in a spares kit for trailside or dockside repairs

Specs At A Glance

Good To Know

Q: Does this joint fit both the 2000 and 2001 XL 800? A: Yes, the listing covers the 2000-2001 XL 800, and the part number 66E-1131C-10-00 is the cross-reference to match against your machine.

Q: Should I replace the joint if the old one still looks intact? A: Once a cover has been removed, fitting a fresh joint is the reliable move, since old seals harden and may not seat again. Confirm your engine code and serial number before ordering.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.