420950820 Valve Cover Gasket for Sea-Doo RXP P XRS 300 1630 2018

Valve Cover Gasket for Sea-Doo

This valve cover gasket seals the valve cover to the cylinder head on 1630 engine platforms, replacing OEM part 420950820.

Overview

This valve cover gasket is a direct-fit replacement for the 1630 engine used in Sea-Doo RXP, RXP-X, and RXP-XRS 300 models. The gasket seals the valve cover mating surface to prevent oil seepage and keep crankcase pressure stable. It suits riders and mechanics handling top-end service or rebuilds on these watercraft.

Built For Performance

• Precision-cut to match the 1630 cylinder head profile
• Oil-resistant material handles heat cycling in marine engines
• Seals the valve cover mating surface against oil seepage
• Direct replacement for OEM part 420950820
• Sold as a single gasket for straightforward installation

Fits These Machines

• for Sea-Doo RXP 300
• for Sea-Doo RXP-X 300
• for Sea-Doo RXP-XRS 300

On-The-Job Use

• Valve cover resealing during top-end service
• Engine rebuilds on 1630 powerplants
• Correcting oil leaks at the valve cover mating surface
• Routine maintenance on Sea-Doo 300-series watercraft

Specs At A Glance

Good To Know

Q: Does this gasket fit the 1630 engine in RXP, RXP-X, and RXP-XRS 300 models? A: Yes, it is listed for the 1630 platform across those 300-series models and cross-references OEM 420950820.

Q: Should I apply sealant when installing this gasket? A: Follow the manufacturer service procedure for your engine; most valve cover gaskets install dry or with a light sealer only where specified.

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