420260728 Power Valve Bellow for Sea-Doo XP 800 1995-1997

Power Valve Bellow for Sea-Doo

This power valve bellow is a replacement rubber diaphragm that seals the power valve actuator on Sea-Doo 800 engines, cross-referencing OEM part number 420260728.

Overview

This power valve bellow acts as the flexible seal between the power valve and its actuator on Sea-Doo 800 engines. The power valve bellow keeps exhaust pressure contained so the valve opens and closes at the right moment for smooth power delivery. It is a direct replacement for riders servicing a Sea-Doo XP 800 from the 1995 to 1997 model years.

Built For Performance

• Direct replacement for OEM part number 420260728
• Flexible rubber construction rated for repeated valve cycling
• Seals the power valve actuator against exhaust pressure loss
• Resists heat and oil exposure typical of two-stroke marine engines
• Designed for the Sea-Doo 800 engine platform

Fits These Machines

• for Sea-Doo XP 800, 1995-1997
• for Sea-Doo 800 engine equipped models using power valve bellow 420260728

On-The-Job Use

• Replacing a torn or hardened bellow during power valve service
• Restoring correct valve actuation on a rebuilt 800 engine
• Routine maintenance on Sea-Doo XP 800 watercraft
• Eliminating exhaust leaks around the valve actuator

Specs At A Glance

Good To Know

Q: How many bellows should I replace at once? A: Bellows typically wear at similar rates, so replacing them as a set on the same engine is a common practice. Q: What causes a bellow to fail? A: Heat cycling, oil exposure, and age harden the rubber until it cracks or tears, which lets exhaust pressure escape.

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