Top End Gasket Set for Sea-Doo GTI STD 155 1503 2017

Top End Gasket Set for Sea-Doo GTI STD 155 1503

This top end gasket set provides the seals and gaskets needed to complete an upper engine rebuild on a Sea-Doo GTI STD 155 with the 1503 engine, sealing the cylinder head, cylinders, and related upper components against compression and coolant leaks.

Overview

This top end gasket set is built for the Sea-Doo GTI STD 155 1503, giving riders and mechanics the upper engine seals required for a head or cylinder service. The set covers the gaskets that sit between the cylinder head, cylinders, and exhaust components so the engine seals correctly after a rebuild. It suits personal watercraft owners and shops handling routine top end work on the 1503 platform.

Built For Performance

• Includes the gaskets and seals required for a complete top end reassembly
• Cut to match the 1503 engine's cylinder head and cylinder mating surfaces
• Withstands the heat and pressure of marine engine operation
• Provides a clean sealing surface for head and base junctions
• Suited to rebuilds, refreshes, and scheduled upper engine service
• Keeps coolant and compression sealed where it belongs

Fits These Machines

• for Sea-Doo GTI STD 155 1503

On-The-Job Use

• Head gasket replacement after overheating or compression loss
• Top end rebuilds on the 1503 engine
• Routine upper engine refresh during seasonal maintenance
• Shop repairs on Sea-Doo personal watercraft
• Cylinder and cylinder head service jobs

Specs At A Glance

Good To Know

Q: What does a top end gasket set include? A: It typically covers the gaskets and seals for the cylinder head, cylinder base, and related upper engine joints. Exact contents vary, so check the listing details against your engine before ordering.

Q: Can I reuse gaskets during a rebuild? A: No, gaskets are single-use and should be replaced whenever the head or cylinders are removed. Reusing them risks compression and coolant leaks.

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