420260728 Power Valve Bellow for Sea-Doo Sportster LE 130 951 2000

Power Valve Bellow for Sea-Doo

This power valve bellow, reference 420260728, is a replacement diaphragm component for the RAVE exhaust power valve system on Sea-Doo personal watercraft and sport boats.

Overview

The power valve bellow for Sea-Doo is a small but critical rubber diaphragm that actuates the RAVE exhaust valves on 951 and 800 series engines. It responds to exhaust pressure changes to open and close the power valve, which helps tune exhaust timing across the RPM range. Built for riders and mechanics servicing Sea-Doo Sportster LE 130 and Speedster 800 models, this bellow restores proper power valve function.

Built For Performance

• Direct replacement for OEM reference 420260728
• Flexible rubber construction designed to seal against the power valve housing
• Responds to exhaust pressure to open and close the RAVE valve
• Withstands repeated flex cycles under high heat
• Helps restore consistent exhaust timing across the powerband

Fits These Machines

• for Sea-Doo Sportster LE 130 951 (2000)
• for Sea-Doo Speedster 800 (1998-1999)

On-The-Job Use

• Servicing RAVE power valve assemblies on 951 and 800 engines
• Routine top-end maintenance on Sea-Doo sport boats
• Restoring exhaust valve response after bellow wear or cracking

Specs At A Glance

Good To Know

Q: How do I know if the bellow needs replacing? A: Common signs include sluggish acceleration, erratic power valve operation, or visible cracks and stiffness in the rubber. Inspect the bellow during routine top-end service.

Q: Is this an original Sea-Doo part? A: This is an aftermarket replacement component for Sea-Doo applications, not an original factory part. Verify the reference number 420260728 matches the part you need 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.