420950792 Throttle Body Gasket for Sea-Doo Speedster 2 x 255 1503 2012

Throttle Body Gasket for Sea-Doo

This throttle body gasket is a direct-fit sealing component for the Sea-Doo 1503 engine, cross-referenced to OEM part number 420950792, and it seals the joint between the throttle body and intake to prevent air leaks.

Overview

The throttle body gasket for Sea-Doo 1503 engines seals the mating surface between the throttle body and intake manifold to stop unmetered air from entering the system. This throttle body gasket supports a stable idle and consistent fueling by maintaining a clean seal under boost and vibration. It suits personal watercraft owners and mechanics servicing the 1503 engine platform.

Built For Performance

• Direct cross-reference to OEM part number 420950792 for straightforward replacement
• Precision-cut to match the 1503 throttle body mounting flange
• Seals the intake joint to prevent vacuum and boost leaks
• Resists heat, fuel vapor, and oil exposure in the intake tract
• Constructed from gasket material designed to compress and hold torque
• Simple bolt-on installation with no modification required

Fits These Machines

• for Sea-Doo Speedster 2 x 255 with 1503 engine, 2012

On-The-Job Use

• Intake manifold and throttle body reinstallation after service
• Routine maintenance when chasing rough idle or lean running issues
• Top-end rebuilds and engine refresh work on the 1503 platform
• Diagnosing and repairing vacuum leaks at the throttle body joint

Specs At A Glance

Good To Know

Q: How do I know this gasket fits my machine? A: Match the OEM number 420950792 against your existing part and confirm the 1503 engine and model year listed. Checking your serial number against a parts diagram is the safest way to verify.

Q: Should I replace this gasket every time the throttle body is removed? A: Yes, gaskets are single-use sealing components and should be swapped whenever the throttle body is unbolted. Reusing an old gasket can cause air leaks that affect idle and fueling.

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