420950792 Throttle Body Gasket for Sea-Doo GTX LTD S/C 1503 2003-2004

Throttle Body Gasket for Sea-Doo

This throttle body gasket for Sea-Doo is a direct-seal replacement that sits between the throttle body and intake on 1503-based watercraft, cross-referencing OEM part number 420950792.

Overview

This throttle body gasket for Sea-Doo seals the mating surface between the throttle body and intake manifold on the 1503 engine. It keeps unmetered air from leaking past the joint, helping the engine hold a steady idle and clean throttle response. A smart service item for recreational riders and independent shops working on these boats.

Built For Performance

• Precision-cut to match the throttle body mounting flange and bolt pattern
• Seals the intake tract against vacuum leaks that cause lean running
• Withstands heat cycling from repeated engine warm-up and cool-down
• Replaces the original gasket without modification to surrounding parts
• Cross-references OEM part number 420950792

Fits These Machines

• for Sea-Doo GTX LTD S/C, 2003-2004

On-The-Job Use

• Throttle body removal and reinstallation during intake service
• Chasing down a rough idle or vacuum leak on a 1503 engine
• Routine top-end refresh alongside other intake gaskets
• Shop repairs and DIY maintenance on GTX LTD S/C models

Specs At A Glance

Good To Know

Q: Is this the same gasket listed under OEM number 420950792? A: Yes, it is made as a replacement for that OEM number and is intended for the throttle body mounting surface on the listed Sea-Doo 1503 applications. Confirm your model and year before ordering.

Q: Do I need to replace the gasket every time the throttle body comes off? A: A fresh gasket is recommended whenever the throttle body is separated, since a crushed or hardened seal can allow air leaks. Reusing an old gasket risks a rough idle and lean conditions.

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