420950792 Throttle Body Gasket for Sea-Doo RXP 155 1503 2008

Throttle Body Gasket for Sea-Doo

This throttle body gasket is a direct-fit sealing component for the Sea-Doo RXP 155 1503, seating between the throttle body and intake to prevent air and vacuum leaks, and it cross-references OEM part number 420950792.

Overview

This throttle body gasket for Sea-Doo is a precision-cut sealing part that fits between the throttle body and the intake manifold on the RXP 155 1503 platform. It maintains a tight seal so the engine draws clean, unmetered air only through the throttle body, which keeps idle and throttle response consistent. It is intended for riders and mechanics servicing or rebuilding the intake side of a 2008 Sea-Doo 1503 engine.

Built For Performance

• Precision-cut to match the throttle body mounting surface and bolt pattern
• Seals the throttle body to intake joint against air and vacuum leaks
• Withstands the heat and fuel vapor present in a marine intake tract
• Direct replacement for OEM part number 420950792
• Installs with standard hand tools during throttle body service

Fits These Machines

• for Sea-Doo RXP 155 1503, 2008

On-The-Job Use

• Throttle body removal or replacement on the 1503 engine
• Intake leak repair and vacuum sealing service
• Top-end and intake gasket refresh during rebuilds
• Routine maintenance of the air induction system

Specs At A Glance

Good To Know

Q: How do I know if this gasket needs replacing? A: Common signs include a rough or fluctuating idle, hard starting, and air leak noises around the throttle body. A cracked or flattened gasket allows unmetered air into the intake.

Q: Should this gasket be reused after removing the throttle body? A: No, a gasket that has been compressed should be replaced each time the throttle body is removed. Reusing an old gasket risks vacuum leaks on the 1503 engine.

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