420950772 Head Gasket for Sea-Doo Utopia SE 155 1503 2007-2009

Head Gasket for Sea-Doo 1503

This head gasket for Sea-Doo 1503 engines seals the cylinder head to the engine block, cross-referencing OEM part number 420950772.

Overview

This head gasket for Sea-Doo 1503 is a sealing component that fits between the cylinder head and engine block to contain combustion pressure and coolant. It serves as a direct replacement for OEM 420950772 on the 1503 engine platform. Owners of Sea-Doo Utopia and SE 155 watercraft will find this head gasket for Sea-Doo 1503 suited to routine rebuilds and top-end service.

Built For Performance

• Cross-references OEM part number 420950772
• Constructed to seal combustion chambers and coolant passages
• Designed for the 1503 four-stroke marine engine platform
• Withstands heat cycling from repeated engine operation
• Fits between cylinder head and block without modification

Fits These Machines

• for Sea-Doo Utopia 155
• for Sea-Doo SE 155

On-The-Job Use

• Top-end rebuilds on 1503 marine engines
• Cylinder head removal and reinstallation service
• Routine engine maintenance on Sea-Doo jet boats
• Restoring compression after a failed head gasket

Specs At A Glance

Good To Know

Q: Does this head gasket fit other 1503 engines? A: It is listed for the Sea-Doo Utopia and SE 155 with the 1503 engine. Always confirm your model and engine serial number before ordering.

Q: Should head bolts be replaced at the same time? A: Many technicians recommend new head bolts during a top-end job. Follow the service manual torque sequence for best sealing results.

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