420950772 Head Gasket for Sea-Doo Challenger SE 215 1503 2012 1 x 215

Head Gasket for Sea-Doo Challenger/SE

This head gasket for Sea-Doo Challenger/SE seals the cylinder head to the engine block on the 1503 215 engine, and it cross-references OEM part number 420950772.

Overview

This head gasket for Sea-Doo Challenger/SE is a sealing component that sits between the cylinder head and engine block to contain combustion pressure and coolant on the 1503 215 powerplant. It is built for riders and mechanics servicing a 2012 Sea-Doo Challenger or SE who need a dependable replacement for a blown or worn gasket. The head gasket for Sea-Doo Challenger/SE matches OEM reference 420950772 for straightforward installation.

Built For Performance

• Precision-formed to seal the cylinder head joint on the 1503 215 engine
• Withstands the high combustion temperatures and pressures of marine use
• Helps maintain proper compression across the cylinders
• Seals coolant passages to prevent leaks between head and block
• Cross-references OEM part number 420950772
• Direct-fit replacement for the specified 2012 application

Fits These Machines

• for Sea-Doo Challenger 1503 215 (2012)
• for Sea-Doo Challenger SE 1503 215 (2012)

On-The-Job Use

• Top-end rebuilds after a blown head gasket
• Cylinder head removal and reinstallation jobs
• Routine engine refresh on a 2012 Sea-Doo Challenger or SE
• Compression loss or coolant intrusion diagnostics and repair

Specs At A Glance

Good To Know

Q: What does a head gasket do? A: It seals the joint between the cylinder head and engine block, keeping combustion gases, coolant, and oil in their proper places. A failed head gasket can cause overheating, coolant loss, or a drop in compression.

Q: Do I need to replace other parts when changing this gasket? A: It is common practice to inspect head bolts and the cylinder head surface for flatness when replacing the gasket. Replacing worn fasteners and cleaning mating surfaces helps the new gasket seal correctly.

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