420854360 Power Valve Housing for Sea-Doo GTX 800 1996-1997

Power Valve Housing for Sea-Doo

This power valve housing, part number 420854360, is the component that houses and guides the exhaust power valve on Sea-Doo 800 engines for responsive low-end and mid-range power.

Overview

This power valve housing for Sea-Doo is a direct-fit replacement component for the 800 series engine exhaust power valve assembly, part number 420854360. It holds and aligns the power valve so the exhaust port timing adjusts correctly as RPM rises. It is intended for riders and mechanics servicing Sea-Doo GTX 800 and other 800-powered models.

Built For Performance

• Precision housing bore to keep the power valve aligned through its travel
• Direct replacement for OEM part number 420854360
• Seals the valve assembly against exhaust leakage
• Rated for the heat and vibration of two-stroke marine exhaust
• Mounting points matched to the factory bolt pattern

Fits These Machines

• for Sea-Doo GTX 800 1996-1997

On-The-Job Use

• Rebuilding a top end on Sea-Doo 800 engines
• Servicing exhaust power valves during routine maintenance
• Restoring proper low-end throttle response on personal watercraft
• Replacing a cracked or worn housing during power valve cleaning

Specs At A Glance

Good To Know

Q: Does this housing come with the power valve itself? A: No, this listing covers the housing only. Reuse or replace the valve, spring, and gaskets as needed for your rebuild.

Q: Will this fit every Sea-Doo 800 engine? A: It matches the 420854360 housing used on many 800-series engines, but fitment can vary by model year, so verify your part 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.