420854449 Power Valve Piston for Sea-Doo GTX 800 1996-1997

Power Valve Piston for Sea-Doo

This power valve piston for Sea-Doo watercraft replaces OEM part 420854449, restoring precise exhaust valve movement on 800 engines.

Overview

This power valve piston for Sea-Doo is a direct replacement component for the exhaust power valve system on 800 engines. It restores smooth valve actuation so the engine delivers consistent power across the RPM range. This power valve piston for Sea-Doo is suited to riders servicing a worn or seized valve assembly.

Built For Performance

• Precision-machined piston body for consistent valve travel
• Constructed from durable metal for heat and wear resistance
• Direct replacement for OEM part 420854449
• Designed for the exhaust power valve assembly on 800 engines
• Restores proper valve opening and closing action

Fits These Machines

• for Sea-Doo GTX 800, 1996-1997

On-The-Job Use

• Routine exhaust power valve rebuilds
• Restoring lost top-end power on older watercraft
• Servicing a sticking or seized power valve
• Seasonal maintenance on 800-equipped models

Specs At A Glance

Good To Know

Q: Does this piston fit both valves on my engine? A: This listing covers one power valve piston, so order the quantity needed to service each valve position on your engine.

Q: Do I need any other parts when replacing this piston? A: Inspect the valve guillotine, spring, and seals during the job and replace any worn components to keep the assembly working correctly.

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