420950772 Head Gasket for Sea-Doo Challenger/SE 310 1503 2008-2011

Head Gasket for Sea-Doo Challenger/SE 310 1503

This head gasket for Sea-Doo Challenger and SE 310 1503 models seals the cylinder head to the engine block, maintaining compression and keeping coolant and oil passages separated, and it cross-references OEM number 420950772.

Overview

This head gasket for Sea-Doo Challenger and SE 310 1503 watercraft provides a critical seal between the cylinder head and engine block on the 1503 engine. A quality head gasket for Sea-Doo 1503 applications helps maintain proper compression and separates coolant from oil passages for reliable operation. It suits riders performing top-end rebuilds or replacing a failed gasket on their 2008-2011 Sea-Doo Challenger or SE 310.

Built For Performance

• Cross-references OEM part number 420950772 for straightforward matching
• Designed to seal the cylinder head to the engine block on 1503 engines
• Maintains compression between the cylinder head and block
• Separates coolant and oil passages to prevent cross-contamination
• Suited to top-end rebuild and head gasket replacement work

Fits These Machines

• for Sea-Doo Challenger 310 1503, 2008-2011
• for Sea-Doo SE 310 1503, 2008-2011

On-The-Job Use

• Top-end engine rebuilds on 1503-powered watercraft
• Replacing a blown or leaking head gasket
• Routine engine maintenance and refresh work
• Restoring proper compression after overheating or damage

Specs At A Glance

Good To Know

Q: Does this gasket fit my 2008-2011 Sea-Doo Challenger or SE 310? A: It is listed for Sea-Doo Challenger and SE 310 1503 models from 2008-2011 and cross-references OEM 420950772. Confirm your engine and model year before ordering.

Q: Is this an original Sea-Doo part? A: This is an aftermarket head gasket for Sea-Doo applications that cross-references OEM number 420950772. It is not an original brand product.

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