420854410 Power Valve for Sea-Doo XP LTD 951 1998-1999

Power Valve Link for Yamaha

This power valve link is a replacement component that connects the power valve actuator to the valve itself on Yamaha GP 800 watercraft, carrying OEM cross-reference 66E-1131S-10-00 for straightforward matching.

Overview

This power valve link is a direct replacement component for the Yamaha GP 800 personal watercraft. It connects the power valve actuator to the valve, helping restore proper exhaust timing for consistent engine response. It suits riders performing routine maintenance or rebuilding top-end components on their Yamaha GP 800.

Built For Performance

• Cross-references OEM part number 66E-1131S-10-00 for easy verification
• Designed for the exhaust power valve linkage on Yamaha GP 800 engines
• Restores proper power valve actuation for consistent exhaust timing
• Direct-fit replacement for worn or broken factory linkage
• Stamped or machined to match original linkage geometry

Fits These Machines

• for Yamaha GP 800, 1999
• for Yamaha GP 800, 2000
• for Yamaha GP 800, 2001
• for Yamaha GP 800, 2002

On-The-Job Use

• Top-end rebuilds on Yamaha GP 800 engines
• Restoring power valve function after linkage wear or breakage
• Routine exhaust system maintenance on personal watercraft
• Pre-season service to keep exhaust timing within spec

Specs At A Glance

Good To Know

Q: Is this an original Yamaha part? A: No, this is an aftermarket replacement power valve link that cross-references Yamaha part number 66E-1131S-10-00. It is designed to fit the listed Yamaha GP 800 models.

Q: How do I know if my power valve link needs replacing? A: Common signs include erratic power delivery, sticking at certain RPM ranges, or visible wear and play at the linkage. Inspecting the link during top-end service is the simplest way to confirm.

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