420950820 Valve Cover Gasket for Sea-Doo Challenger SP 155 1503 2009

Valve Cover Gasket for Sea-Doo

The Valve Cover Gasket for Sea-Doo replaces the OEM 420950820 seal to keep oil contained around the valve cover on 1503 engine applications.

Overview

This valve cover gasket for Sea-Doo is a direct replacement seal for the 1503 engine valve cover. It keeps engine oil from seeping past the cover mating surface so the top end stays clean and oil stays where it belongs. Designed for riders and mechanics servicing the Challenger SP 155 platform.

Built For Performance

• Replaces OEM part number 420950820 to restore a proper valve cover seal
• Constructed to resist heat and oil breakdown under regular engine use
• Molded shape matches the valve cover mating surface for a consistent fit
• Seals against oil weep at the top end of the 1503 engine
• Sold individually as a direct replacement gasket

Fits These Machines

• for Sea-Doo Challenger SP 155 with 1503 engine, 2009

On-The-Job Use

• Valve cover resealing during top end service
• Replacing a hardened or leaking gasket on a 1503 engine
• Routine maintenance on the Challenger SP 155 jet boat

Specs At A Glance

Good To Know

Q: Does replacing the valve cover gasket stop oil leaks? A: Yes, a fresh gasket restores the seal between the valve cover and cylinder head to stop oil weep at the top end.

Q: Should the valve cover bolts be torqued after installing this gasket? A: Yes, always tighten the cover bolts to the manufacturer's specified torque to avoid crushing the gasket or causing a new leak.

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