420939130 Power Valve Spring for Sea-Doo Sportster LE DI 951 2004-2006

Power Valve Spring for Sea-Doo

This power valve spring is a direct replacement component that controls the power valve actuation in the 951 DI engine, referencing OEM part number 420939130.

Overview

This power valve spring for Sea-Doo is a replacement component that keeps the power valve operating correctly in 951 DI engines. The spring maintains the proper tension needed to regulate exhaust timing, which helps preserve low-end and mid-range power. It is intended for owners and mechanics servicing Sea-Doo Sportster LE DI 951 watercraft or replacing a worn or broken power valve spring.

Built For Performance

• Direct fitment for the 951 DI engine power valve assembly
• Maintains correct spring tension for proper valve actuation
• Helps preserve low-end and mid-range power delivery
• References OEM part number 420939130 for easy cross-checking
• Constructed to withstand the heat and vibration of marine two-stroke service

Fits These Machines

• for Sea-Doo Sportster LE DI 951 (2004-2006)

On-The-Job Use

• Rebuilding or refreshing a power valve assembly on a 951 DI engine
• Replacing a fatigued or broken spring that affects valve operation
• Routine top-end maintenance on Sea-Doo Sportster LE DI watercraft

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: This is a replacement power valve spring designed to fit Sea-Doo 951 DI power valve assemblies and is not an original brand component. Always confirm your engine and valve configuration before ordering.

Q: How many springs should I replace at once? A: Power valve systems typically use multiple springs, and replacing them as a matched set helps keep valve action consistent. Check your service reference to confirm the quantity and location for your engine.

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