420260721 Power Valve Water Box Bellow for Sea-Doo RX DI 951 2000-2003

Power Valve Water Box Bellow for Sea-Doo

This power valve water box bellow, reference 420260721, is a replacement bellows component that seals and flexes within the exhaust water box assembly on Sea-Doo personal watercraft.

Overview

This power valve water box bellow is a molded flexible component that fits into the exhaust water box on Sea-Doo watercraft, helping manage the power valve exhaust flow while keeping water and gases contained at the joint. The bellow is designed as a direct-fit replacement for the listed Sea-Doo reference, making it a practical choice for riders servicing a worn or cracked original. It suits DIY owners and shops working on 2000 to 2003 RX DI 951 models.

Built For Performance

• Flexible bellow construction that absorbs vibration and movement at the water box connection
• Molded shape matched to the 420260721 reference for a drop-in fit
• Resists heat and moisture typical of two-stroke exhaust environments
• Seals the joint to help prevent exhaust leaks and water intrusion
• Lightweight rubber-style material that will not add bulk to the exhaust assembly

Fits These Machines

• for Sea-Doo RX DI 951, 2000
• for Sea-Doo RX DI 951, 2001
• for Sea-Doo RX DI 951, 2002
• for Sea-Doo RX DI 951, 2003

On-The-Job Use

• Exhaust water box service on Sea-Doo RX DI 951 watercraft
• Replacing a hardened, torn, or leaking bellow during routine maintenance
• Power valve exhaust system repair in a home garage or shop
• Seasonal refresh before launching the boat

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: No, this is a replacement bellow built to match the 420260721 reference. Always phrase it as a fitment option for Sea-Doo watercraft, not an OEM original.

Q: How do I know it will fit my watercraft? A: Check your model year, engine, and existing part number against the 420260721 reference before ordering. Fit can vary by serial number and production changes.

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