420854449 Power Valve Piston for Sea-Doo RX X 951 2001

Power Valve Piston for Sea-Doo

This power valve piston for Sea-Doo replaces OEM 420854449 and keeps the RAVE exhaust valve operating correctly on RX X 951 models.

Overview

The power valve piston drives the exhaust valve in the RAVE system found on Sea-Doo 951 engines. It controls valve opening to balance low-end torque and high-rpm power. This replacement power valve piston fits 2001 Sea-Doo RX X 951 applications and matches OEM part number 420854449.

Built For Performance

• Direct replacement for OEM part number 420854449
• Machined to factory tolerances for precise valve travel
• Designed for the RAVE exhaust valve on 951 series engines
• Built to withstand repeated heat cycles from exhaust gases
• Sold individually for targeted replacement

Fits These Machines

• for Sea-Doo RX X 951, 2001

On-The-Job Use

• Repairing a RAVE valve that has seized or stopped moving
• Restoring acceleration response after exhaust valve wear
• Top-end rebuilds on 951 Rotax marine engines
• Routine maintenance of the power valve assembly

Specs At A Glance

Good To Know

Q: Is this a set or a single piston? A: This is a single power valve piston, so order the quantity your repair requires. Replacing both sides together is common practice when wear is uneven.

Q: What else should I check during replacement? A: Inspect the guillotine, housing, bellows, and seals while the valve is apart. Addressing worn components now helps prevent a second teardown later.

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