420854449 Power Valve Piston for Sea-Doo XP 951 2000-2002

Power Valve Piston for Sea-Doo XP 951

This power valve piston is a replacement component for the Sea-Doo XP 951 watercraft, cross-referencing OEM part number 420854449, and it operates the exhaust power valve to manage exhaust timing across the RPM range.

Overview

This power valve piston serves the Sea-Doo XP 951, 2000-2002 models as a direct replacement for worn or damaged exhaust valve components. It restores proper actuation of the power valve system so the engine breathes correctly at all speeds. Built for riders and mechanics maintaining Sea-Doo XP 951 watercraft.

Built For Performance

• Direct replacement for OEM part number 420854449
• Constructed from durable materials to withstand exhaust heat
• Restores proper power valve travel and timing
• Precision fit for the Sea-Doo 951 engine platform
• Sold as a single piston unit

Fits These Machines

• for Sea-Doo XP 951 (2000-2002)

On-The-Job Use

• Rebuilding worn power valve assemblies
• Restoring exhaust timing on high-hour engines
• Routine top-end maintenance

Specs At A Glance

Good To Know

Q: What does a power valve piston do? A: It moves the exhaust power valve to change exhaust port timing, which helps the engine deliver power across the RPM range.

Q: Does this fit every Sea-Doo 951 engine? A: It is listed for the XP 951 2000-2002, so verify your model year and engine 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.