420950772 Head Gasket for Sea-Doo Challenger SE 2 x 215 1503 2012

Head Gasket for Sea-Doo

This head gasket for Sea-Doo 1503 engines seals the cylinder head to the engine block, maintaining compression and keeping coolant and oil where they belong, and it replaces OEM part 420950772.

Overview

This head gasket for Sea-Doo 1503 engines is a direct-fit replacement for the 215 HP powerplant found in the Challenger SE. It seals the head to the block, which helps hold compression, keep coolant out of the cylinders, and protect the engine under boost. It is built for owners doing a top-end rebuild or tracking down a failed gasket on their 1503 Rotax marine engine.

Built For Performance

• Multi-layer steel construction suited to the heat and pressure of a supercharged marine engine
• Bore and port openings matched to the 1503 cylinder head bolt pattern
• Precisely cut water and oil passage holes for correct coolant and oil flow
• Designed to seal in the combustion chamber under factory boost levels for the 215 HP engine
• Replaces OEM part number 420950772

Fits These Machines

• for Sea-Doo Challenger SE 215
• for Sea-Doo 1503 engines with 215 HP rating

On-The-Job Use

• Top-end rebuilds after a blown head gasket
• Fresh gasket install when removing the head for valve or piston service
• Restoring fresh compression to a 2012 Challenger SE
• Seasonal maintenance on supercharged 1503 equipped boats

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: No, it is a replacement head gasket made to fit Sea-Doo 1503 engines that use OEM number 420950772.

Q: Can I reuse this gasket? A: No, a head gasket is a one-time use item and should be replaced any time the cylinder head is removed.

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