420950820 Valve Cover Gasket for Sea-Doo GTX STD 1503 2004-2006

Valve Cover Gasket for Sea-Doo

This valve cover gasket seals the valve cover to the cylinder head on 1503 engine equipped watercraft, replacing OEM reference 420950820 to keep oil contained and combustion sealed.

Overview

This valve cover gasket is a direct-fit sealing component for the 1503 engine used in Sea-Doo personal watercraft. It creates a tight seal between the valve cover and cylinder head, preventing oil seepage and maintaining proper crankcase pressure. Ideal for riders performing routine maintenance or rebuilding a top end on their 2004-2006 GTX STD.

Built For Performance

• Precision-cut to match the 1503 valve cover mating surface
• Oil-resistant material withstands constant heat cycling
• Replaces OEM reference 420950820
• Seals against oil weep and vacuum leaks at the valve cover
• Direct-fit install with no modification required

Fits These Machines

• for Sea-Doo GTX STD 1503 (2004)
• for Sea-Doo GTX STD 1503 (2005)
• for Sea-Doo GTX STD 1503 (2006)

On-The-Job Use

• Top-end rebuilds on 1503 engines
• Routine valve cover resealing
• Fixing oil seepage around the valve cover
• Preventive maintenance on 2004-2006 GTX STD

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: This is an aftermarket replacement valve cover gasket that cross-references OEM number 420950820, not an original brand component.

Q: Can I reuse the old gasket? A: No, valve cover gaskets are single-use sealing items and should be replaced once removed to prevent 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.