420950772 Head Gasket for Sea-Doo RXT 215 1503 2009-2010

Head Gasket for Sea-Doo

This head gasket for Sea-Doo replaces OEM part 420950772 and seals the cylinder head to the engine block on the 1503 engine to maintain proper compression and cooling.

Overview

This head gasket for Sea-Doo is a direct replacement sealing component for the 1503 engine used in RXT 215 models from 2009 to 2010. It seals the mating surface between the cylinder head and engine block, keeping combustion pressure contained and coolant flowing through the correct passages. This head gasket for Sea-Doo suits riders and mechanics performing top-end rebuilds or routine engine maintenance.

Built For Performance

• Cross-references OEM part number 420950772
• Seals combustion chamber and coolant passages between head and block
• Constructed to withstand high compression and heat cycling
• Direct fit for the 1503 engine platform
• Rated for marine duty in closed-loop cooling systems

Fits These Machines

• for Sea-Doo RXT 215 1503, 2009-2010

On-The-Job Use

• Top-end engine rebuilds after overheating or gasket failure
• Cylinder head removal and reinstallation
• Compression restoration on high-hour 1503 engines
• Preventive maintenance during seasonal tear-down

Specs At A Glance

Good To Know

Q: Does this head gasket require any sealant during installation? A: Most marine head gaskets of this type install dry unless the service manual specifies otherwise. Always follow the manufacturer torque sequence and specs for the 1503 engine.

Q: Can I reuse the original head bolts with this gasket? A: Inspect head bolts for stretch and corrosion before reuse, as compromised hardware can cause sealing failure. Many builders replace them as a precaution during a top-end rebuild.

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