420950820 Valve Cover Gasket for Sea-Doo Sport 18-300 1630 2026

Valve Cover Gasket for Sea-Doo

This valve cover gasket for Sea-Doo 1630 engines seals the valve cover to the cylinder head and prevents oil leaks, carrying OEM cross-reference 420950820.

Overview

This valve cover gasket for Sea-Doo keeps oil contained where the valve cover meets the cylinder head on 1630 engines. It delivers a reliable seal to protect against leaks and oil loss during operation. Owners of compatible Sport series watercraft will find this valve cover gasket a practical replacement.

Built For Performance

• Direct fitment for 1630 engine valve covers
• OEM cross-reference 420950820 for easy verification
• Constructed to withstand high engine temperatures
• Resists oil and fuel exposure for long service life
• Pre-formed shape for straightforward installation

Fits These Machines

• for Sea-Doo Sport 18-300 1630, 2026

On-The-Job Use

• Routine valve cover resealing during engine maintenance
• Oil leak repair at the cylinder head
• Top-end service on 1630 engines

Specs At A Glance

Good To Know

Q: Does this gasket need sealant? A: Most valve cover gaskets install dry, but check the service manual for your specific 1630 engine. Any required sealant should be applied only where specified.

Q: How often should a valve cover gasket be replaced? A: Replace it whenever the valve cover is removed or if oil seepage appears at the head. Using a fresh gasket each time helps prevent recurring leaks.

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