420950820 Valve Cover Gasket for Sea-Doo GTX Fish Pro 170 1630 2020-2021

Valve Cover Gasket for Sea-Doo

This valve cover gasket seals the valve cover to the cylinder head on select Sea-Doo 1630 engine models, cross-referencing OEM part number 420950820 for a precise fit.

Overview

This valve cover gasket is a direct replacement sealing component for Sea-Doo personal watercraft running the 1630 engine platform. It creates a tight seal between the valve cover and cylinder head to prevent oil seepage and keep the top end clean. Built to OEM cross-reference 420950820, this valve cover gasket suits riders performing routine top-end maintenance on their 2020-2021 GTX Fish Pro 170.

Built For Performance

• Cross-references OEM part number 420950820 for direct replacement
• Seals the valve cover to the cylinder head to stop oil weeping
• Constructed from oil-resistant gasket material
• Designed to hold up under the heat cycles of a 1630 engine
• Restores a proper seal during top-end service

Fits These Machines

• for Sea-Doo GTX Fish Pro 170 1630, 2020-2021

On-The-Job Use

• Routine top-end maintenance and valve cover resealing
• Replacing a worn, weeping, or leaking valve cover gasket
• Freshwater and saltwater personal watercraft use
• Workshop and DIY engine repair

Specs At A Glance

Good To Know

Q: Does this gasket need sealant during install? A: Many riders install it dry, but always follow the service manual for your specific Sea-Doo model and torque the valve cover bolts to spec.

Q: Can I reuse the old valve cover gasket? A: A valve cover gasket is a single-use seal, so replace it whenever the cover is removed to avoid oil leaks.

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