420911558 Power Valve Cover for Sea-Doo GSX RFI 800 1999-2000

Power Valve Cover for Sea-Doo

This power valve cover is a replacement component designed to seal and protect the power valve assembly on select Sea-Doo 800 RFI engines, carrying OEM cross-reference 420911558.

Overview

This power valve cover serves as a direct replacement for the factory cover on Sea-Doo 800 RFI watercraft, helping maintain proper sealing of the power valve mechanism. It is built to fit the 1999-2000 GSX RFI 800 platform and is intended for riders performing routine engine maintenance or replacing a worn or damaged cover. Whether you are servicing your power valve system or completing a rebuild, this cover matches the original fitment requirements for Sea-Doo 800 RFI engines.

Built For Performance

• OEM cross-reference 420911558 for precise fitment matching
• Constructed to seal the power valve cavity against water and debris intrusion
• Designed specifically for the Sea-Doo 800 RFI engine configuration
• Compatible with 1999-2000 GSX RFI 800 models
• Replacement part supporting proper power valve operation

Fits These Machines

• for Sea-Doo GSX RFI 800 1999
• for Sea-Doo GSX RFI 800 2000

On-The-Job Use

• Routine power valve maintenance on Sea-Doo 800 RFI engines
• Replacing a cracked or leaking power valve cover
• Engine rebuild and top-end service projects
• Seasonal tune-ups before riding season

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: This is a replacement power valve cover manufactured to fit Sea-Doo 800 RFI engines and is referenced by OEM number 420911558, but it is not an original brand product.

Q: Will this fit my 1999 GSX RFI 800? A: This cover is designed for the 1999-2000 GSX RFI 800 platform, but serial number variation can affect fitment, so confirm compatibility with your machine 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.