420950772 Head Gasket for Sea-Doo GTX LTD IS 255 1503 2009

Head Gasket for Sea-Doo GTX LTD IS 255 1503

This head gasket replaces OEM part 420950772 for the Sea-Doo GTX LTD IS 255 1503, sealing the cylinder head to the engine block to hold compression and coolant on 2009 models.

Overview

This head gasket is a direct replacement sealing component for the Sea-Doo GTX LTD IS 255 1503 equipped with the 1503 engine, carrying OEM cross-reference 420950772. It seals the cylinder head to the engine block, preserving combustion pressure and coolant flow so the engine stays reliable on the water. It suits riders and mechanics performing top-end work on the 2009 Sea-Doo GTX LTD IS 255 1503.

Built For Performance

• Cut to match OEM part number 420950772 for a precise fit
• Built to handle the compression and heat of the 1503 engine
• Seals both combustion chambers and coolant passages
• Designed for the 2009 Sea-Doo GTX LTD IS 255 platform
• Works with factory cylinder head and block mating surfaces

Fits These Machines

• for Sea-Doo GTX LTD IS 255 1503, 2009

On-The-Job Use

• Top-end rebuilds after compression loss or overheating
• Cylinder head removal and reinstallation service
• Routine engine maintenance on 1503-powered watercraft
• Coolant leak repair at the head-to-block joint

Specs At A Glance

Good To Know

Q: Do I need to replace head bolts when installing this gasket? A: Many torque-to-yield head bolts are single-use, so check your service manual and replace them if specified to ensure a proper seal. A: Clean both mating surfaces and follow the factory torque sequence and values.

Q: Will this gasket fit any 1503 engine? A: It is listed for the Sea-Doo GTX LTD IS 255 1503 from 2009, so verify your model and year before ordering.

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