420431801 Valve Cover Gasket for Sea-Doo GTI P STD 90 900 2018

Valve Cover Gasket for Sea-Doo

This valve cover gasket seals the valve cover to the cylinder head on select Sea-Doo personal watercraft engines, cross-referencing OEM part number 420431801.

Overview

The valve cover gasket for Sea-Doo is a sealing component that sits between the valve cover and cylinder head to keep oil contained and prevent leaks. This valve cover gasket for Sea-Doo applications helps maintain proper engine sealing on 900-series Rotax powerplants. It is intended for riders and mechanics replacing a worn or leaking gasket during routine engine service.

Built For Performance

• Precision-cut to match the OEM 420431801 sealing profile
• Resists oil, heat, and the vibration typical of marine engines
• Forms a tight seal between valve cover and cylinder head
• Direct replacement for the original gasket during top-end service
• Constructed for repeatable sealing under normal operating temperatures

Fits These Machines

• for Sea-Doo GTI P STD 90 900, 2018

On-The-Job Use

• Replacing a leaking valve cover gasket during engine servicing
• Top-end resealing on 900-series Sea-Doo personal watercraft
• Routine maintenance to prevent oil seepage on the valve cover

Specs At A Glance

Good To Know

Q: Does this gasket require sealant during installation? A: Many valve cover gaskets install dry, but always follow the service manual for the specific engine. Check the mating surfaces for cleanliness before fitting.

Q: How do I know if my valve cover gasket needs replacing? A: Common signs include oil seepage around the valve cover and a visible wet or degraded gasket. Inspect the sealing area during regular engine checks.

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