420950792 Throttle Body Gasket for Sea-Doo GTX P STD 155 1503 2018

Throttle Body Gasket for Sea-Doo

This throttle body gasket, OEM cross-reference 420950792, seals the joint between the throttle body and intake for proper air delivery on your watercraft.

Overview

This throttle body gasket is a direct-fit sealing component for the 1503 engine used in many Sea-Doo models. The throttle body gasket prevents air leaks at the throttle body mounting surface, helping the engine maintain correct air-fuel mixture and consistent idle quality. It is designed for riders and mechanics servicing a Sea-Doo GTX or similar 1503-equipped watercraft.

Built For Performance

• OEM cross-reference 420950792 for accurate fitment
• Precision-cut sealing surface to prevent intake air leaks
• Heat-resistant material suited to engine bay temperatures
• Correct thickness to maintain proper throttle body seating
• Replaces worn or compressed gaskets that cause rough running

Fits These Machines

• for Sea-Doo GTX P STD 155 (1503 engine)
• for Sea-Doo models equipped with the 1503 engine

On-The-Job Use

• Throttle body removal and reinstallation
• Intake air leak diagnosis and repair
• Routine engine top-end service
• Restoring smooth idle after gasket failure

Specs At A Glance

Good To Know

Q: Does this gasket come with the throttle body? A: No, this listing is for the gasket only. You reuse your existing throttle body and replace the old gasket during reassembly.

Q: Why replace a throttle body gasket? A: A worn gasket can allow unmetered air into the intake, causing lean running, rough idle, or poor throttle response. Replacing it restores a proper seal.

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