420950792 Throttle Body Gasket for Sea-Doo GTI STD 155 1503 2017

Throttle Body Gasket for Sea-Doo

The throttle body gasket for Sea-Doo replaces OEM 420950792, sealing the throttle body to intake joint to prevent air leaks on GTI STD 155 1503 models.

Overview

This throttle body gasket for Sea-Doo is a direct-fit sealing component for the 1503 engine family. It seals the joint between the throttle body and intake manifold, blocking unmetered air from entering the system. Designed for riders and mechanics servicing the GTI STD 155, it keeps idle quality and throttle response consistent.

Built For Performance

• OEM cross-reference 420950792 for exact fitment
• Seals the throttle body to intake mounting surface against vacuum leaks
• Resists heat and fuel vapor exposure in the engine bay
• Maintains consistent air metering for stable idle quality
• Direct replacement for worn or hardened factory gaskets

Fits These Machines

• for Sea-Doo GTI STD 155 1503, 2017

On-The-Job Use

• Throttle body removal and reinstallation
• Intake leak diagnosis and repair
• Top-end service on 1503 engines
• Routine maintenance of the intake tract

Specs At A Glance

Good To Know

Q: How do I know if my throttle body gasket needs replacing? A: A hardened, cracked, or leaking gasket often causes erratic idle, lean running, or a whistle at the intake. Replace it whenever the throttle body is removed.

Q: Is this an original Sea-Doo part? A: This is an aftermarket replacement part designed to fit Sea-Doo applications and cross-references OEM 420950792. Confirm your model and serial number before ordering.

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