420950772 Head Gasket for Sea-Doo GTI STD DT 1503 2007

Head Gasket for Sea-Doo GTI STD DT 1503

This head gasket, part number 420950772, is a sealing component that fits between the cylinder head and engine block on the Sea-Doo GTI STD and GTI DT with the 1503 engine, keeping combustion pressure and coolant contained.

Overview

The head gasket for Sea-Doo GTI STD DT 1503 seals the joint between the cylinder head and the engine block on the 1503 engine. This head gasket holds compression inside the combustion chamber and keeps oil and coolant in their proper passages. It is a direct service part for riders and mechanics maintaining the 2007 GTI STD and GTI DT.

Built For Performance

• Precision-cut openings matched to the 1503 engine's combustion chambers and coolant passages
• Multi-layer construction built to handle the clamp load between head and block
• Heat-resistant material suited to the operating temperatures of the 1503 engine
• Seals combustion pressure, oil, and coolant at the head-to-block joint
• Cross-references OEM part number 420950772

Fits These Machines

• for Sea-Doo GTI STD with the 1503 engine, 2007
• for Sea-Doo GTI DT with the 1503 engine, 2007

On-The-Job Use

• Top-end rebuilds after a blown head gasket or overheating event
• Cylinder head removal and reinstallation on the 1503 engine
• Routine engine service on 2007 GTI STD and GTI DT watercraft
• Shop and garage repairs where a fresh sealing layer is required at the head joint

Specs At A Glance

Good To Know

Q: Does this head gasket fit other Sea-Doo models? A: This listing covers the GTI STD and GTI DT with the 1503 engine for 2007. Confirm your model and engine before ordering.

Q: Should head bolts be replaced when installing this gasket? A: Many torque-to-yield head bolts are single-use, so check the service manual for your 1503 engine and replace them if specified.

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