420950772 Head Gasket for Sea-Doo Wake SE 510 1503 2010-2011

Head Gasket for Sea-Doo

This head gasket 420950772 seals the cylinder head to the block on 1503 4-TEC equipped watercraft, holding compression and keeping coolant, oil, and combustion gases in their proper passages.

Overview

This head gasket is a sealing component for the 1503 engine found in several Sea-Doo models. It sits between the cylinder head and block to maintain compression and prevent cross-contamination of fluids. It suits riders and techs servicing a Sea-Doo Wake or SE 510 between 2010 and 2011.

Built For Performance

• Multi-layer steel construction handles combustion heat and pressure
• Precise cutouts match the 1503 head bolt pattern and fluid galleries
• Built to the 420950772 factory dimensions for drop-in fitment
• Stable sealing under the load of a 1503 4-TEC engine
• Direct replacement for the original head gasket

Fits These Machines

• for Sea-Doo Wake with 1503 engine, 2010-2011
• for Sea-Doo SE 510 with 1503 engine, 2010-2011

On-The-Job Use

• Top-end teardown after coolant loss or compression issues
• Head removal for valve, cam, or piston work
• Overheating repair on 1503 powered craft
• Routine resealing during engine service

Specs At A Glance

Good To Know

Q: Do I need to replace head bolts with this gasket? A: Torque-to-yield bolts should be swapped whenever the head comes off, and a clean, flat deck gives this gasket the best chance of sealing correctly.

Q: Can I install this gasket on a warped head? A: No, the head should be checked for flatness and resurfaced or replaced if needed, otherwise the new gasket will likely fail again.

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