420950772 Head Gasket for Sea-Doo Islandia SE 220 1503 2006

Head Gasket for Sea-Doo Islandia/SE 220 1503

This head gasket for Sea-Doo seals the cylinder head to the engine block on the 1503 engine used in the Islandia and SE 220, restoring compression and preventing coolant or combustion leaks; it cross-references OEM part 420950772.

Overview

This head gasket for Sea-Doo is a sealing component that fits between the cylinder head and engine block on the 1503 powerplant. It maintains compression and separates coolant and oil passages, making it essential for anyone rebuilding or servicing the Islandia or SE 220. Install this head gasket for Sea-Doo whenever the head is removed for service or the original seal has failed.

Built For Performance

• Direct cross-reference to OEM part number 420950772
• Multi-layer construction designed to handle high combustion pressures
• Precise fitment for the 1503 engine platform
• Seals both combustion chambers and coolant passages
• Resists heat cycling from repeated engine warm-up and cool-down

Fits These Machines

• for Sea-Doo Islandia with the 1503 engine
• for Sea-Doo Islandia SE 220 with the 1503 engine (2006)

On-The-Job Use

• Top-end rebuilds after a blown head gasket
• Cylinder head removal for valve or piston service
• Compression loss diagnosis and repair
• Coolant contamination troubleshooting

Specs At A Glance

Good To Know

Q: Should head bolts be replaced when installing this gasket? A: Many manufacturers specify new torque-to-yield head bolts for this job, so check your service manual before reuse. Always torque in the stated sequence and to the exact spec.

Q: Can I install this gasket dry? A: Follow the service manual for your 1503 engine, since some gaskets require specific sealants while others go on clean and dry. Clean both mating surfaces thoroughly before installation.

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