420950772 Head Gasket for Sea-Doo GTI STD 155 1503 2017

Head Gasket for Sea-Doo

This head gasket for Sea-Doo personal watercraft is a direct replacement sealing component that fits between the cylinder head and engine block to maintain compression and prevent coolant or combustion leaks, cross-referencing OEM part number 420950772.

Overview

This head gasket for Sea-Doo is a sealing component that installs between the cylinder head and engine block to maintain proper compression and keep coolant and combustion gases separated. It is built to match the original 420950772 specification for a precise fit. This head gasket for Sea-Doo is intended for riders performing top-end rebuilds or replacing a failed seal on their watercraft.

Built For Performance

• Cross-references OEM part number 420950772 for direct replacement fit
• Constructed to seal combustion chambers under high compression
• Designed to withstand the heat cycles of marine engine operation
• Precision-cut to match the 1503 engine deck surface
• Helps restore lost compression after a blown gasket
• Suitable for top-end rebuild and maintenance work

Fits These Machines

• for Sea-Doo GTI STD 155 with the 1503 engine, 2017

On-The-Job Use

• Top-end engine rebuilds on the 1503 powerplant
• Replacing a blown or leaking head gasket
• Restoring compression on a Sea-Doo GTI STD 155
• Routine marine engine maintenance

Specs At A Glance

Good To Know

Q: Does this fit my Sea-Doo GTI STD 155? A: It is listed for the 2017 GTI STD 155 with the 1503 engine. Confirm your serial number and engine code before ordering.

Q: Does this replace OEM 420950772? A: Yes, it cross-references OEM part number 420950772. Always verify the number on your old gasket before installation.

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