420950820 Valve Cover Gasket for Sea-Doo Speedster Wake 155 1503 2007

Valve Cover Gasket for Sea-Doo

This valve cover gasket seals the valve cover to the cylinder head on 1503 engine applications, replacing OEM part 420950820.

Overview

This valve cover gasket for Sea-Doo is a direct-fit sealing component for the 1503 engine. It keeps oil contained at the valve cover mating surface and blocks dirt and moisture from entering the top end. A solid choice for riders servicing a Speedster Wake 155 or similar 1503-equipped watercraft.

Built For Performance

• Replaces OEM part number 420950820
• Precision-cut to match the 1503 valve cover mating surface
• Oil-resistant material stands up to constant engine heat
• Seals against oil weep and vapor loss at the top end
• Flexible construction helps compensate for minor surface imperfections

Fits These Machines

• for Sea-Doo Speedster Wake 155 with 1503 engine

On-The-Job Use

• Valve cover resealing during top-end service
• Routine maintenance on 1503 marine engines
• Replacing a hardened or leaking factory gasket

Specs At A Glance

Good To Know

Q: Should the valve cover bolts be retorqued after installation? A: Yes, run the engine through a heat cycle, let it cool, then recheck the bolts to the factory specification to keep the seal seated evenly.

Q: Can this gasket be reused if the cover is removed again? A: It is best treated as a single-use item, since the material takes a compression set once it has been torqued and heated.

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