420950772 Head Gasket for Sea-Doo RXP 155 S/C 1503 2008

Head Gasket 420950772 for Sea-Doo RXP 155 S/C 1503

This head gasket for Sea-Doo RXP 155 S/C 1503 is a replacement sealing component that fits between the cylinder head and engine block on 1503 4-TEC engines, and it carries OEM cross-reference 420950772 for straightforward matching.

Overview

This head gasket for Sea-Doo RXP 155 S/C 1503 seals the junction between the cylinder head and the engine block on 1503 4-TEC powerplants. Proper sealing at this joint keeps combustion pressure, coolant and oil where they belong, which protects compression and keeps the cooling system doing its job. It suits riders and mechanics refreshing a top end that needs a dependable replacement in place of a worn or failed gasket.

Built For Performance

• Direct replacement for OEM part number 420950772
• Seals the cylinder head to block joint on the 1503 4-TEC engine
• Helps maintain combustion pressure and compression
• Designed to keep coolant and oil from cross-contaminating
• Constructed for the heat and clamping loads of a supercharged 4-stroke
• One gasket supplied for one head install

Fits These Machines

• for Sea-Doo RXP 155 S/C 1503 (2008)

On-The-Job Use

• Top end rebuilds and reseals on a Sea-Doo RXP 155 S/C
• Replacing a weeping or blown head gasket after overheating
• Refresh work during supercharger or cooling service
• Head-off repairs that require a fresh sealing gasket

Specs At A Glance

Good To Know

Q: Does this gasket fit a standard non-supercharged 1503? A: It is listed for the Sea-Doo RXP 155 S/C 1503, so always confirm your engine code and model before ordering. Fit can vary between variants that share the same displacement.

Q: Should the head bolts be replaced during this job? A: Many manufacturers specify new torque-to-yield head bolts for a head gasket service, so check your service manual. Following the correct torque sequence is critical to sealing.

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