420950820 Valve Cover Gasket for Sea-Doo Explorer Pro 300 1630 2024

Valve Cover Gasket for Sea-Doo

This valve cover gasket, OEM cross-reference 420950820, seals the valve cover to the cylinder head on personal watercraft engines to prevent oil leaks and keep combustion gases contained.

Overview

This valve cover gasket is a direct replacement sealing component for personal watercraft engines, cross-referenced to OEM part 420950820. The gasket sits between the valve cover and cylinder head to create a tight seal that keeps oil where it belongs and blocks dirt and moisture from entering the top end. It suits riders performing routine maintenance or top-end service on their Sea-Doo watercraft.

Built For Performance

• Precision-cut to match OEM 420950820 sealing profile
• Constructed from oil-resistant gasket material for long service life
• Maintains a tight seal under heat cycling and vibration
• Resists compression set to prevent recurring leaks
• Direct-fit replacement with no modification required

Fits These Machines

• for Sea-Doo Explorer Pro 300 1630, 2024

On-The-Job Use

• Top-end servicing and valve cover removal jobs
• Routine engine maintenance on personal watercraft
• Leak repair at the valve cover mating surface
• Seasonal rebuilds and gasket refresh

Specs At A Glance

Good To Know

Q: Does this gasket require sealant during installation? A: Most valve cover gaskets install dry, but check your service manual for the specific Sea-Doo 1630 engine, as some applications call for a small amount of sealant at corners.

Q: How often should a valve cover gasket be replaced? A: Replace it any time the valve cover is removed for service, or whenever signs of oil seepage appear around the valve cover mating surface.

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