66E-1131C-10-00 Power Valve Cover Joint for Yamaha GP 800 1999-2002

Power Valve Cover Joint for Yamaha

This power valve cover joint fits Yamaha GP 800 watercraft and serves as a direct replacement for OEM part number 66E-1131C-10-00, sealing the power valve assembly on the cylinder.

Overview

This power valve cover joint is a sealing component made for Yamaha GP 800 personal watercraft produced between 1999 and 2002. The power valve cover joint seals the power valve housing to keep exhaust pressure contained and protect the valve mechanism from moisture and debris. It is intended for riders and mechanics performing routine maintenance or rebuilds on their Yamaha GP 800 engine.

Built For Performance

• Direct fitment for Yamaha GP 800 models from 1999 to 2002
• Cross-references OEM part number 66E-1131C-10-00
• Seals the power valve cover to prevent exhaust leaks
• Constructed to withstand the heat of two-stroke exhaust
• Helps maintain consistent power valve operation

Fits These Machines

• for Yamaha GP 800 (1999-2002)

On-The-Job Use

• Routine top-end maintenance on Yamaha GP 800 engines
• Power valve service and resealing
• Engine rebuilds where the cover joint is reused or replaced
• Seasonal tune-ups before riding season

Specs At A Glance

Good To Know

Q: Is this an original Yamaha part? A: This is an aftermarket replacement power valve cover joint made for Yamaha GP 800 that cross-references OEM part number 66E-1131C-10-00.

Q: Will this fit my GP 800 regardless of year? A: It is listed for 1999 through 2002 GP 800 models, but confirming your serial number and existing part number before ordering is recommended.

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