420950792 Throttle Body Gasket for Sea-Doo Speedster 255 1503 2009-2011

Throttle Body Gasket for Sea-Doo

This throttle body gasket for Sea-Doo seals the throttle body to the intake manifold on 1503 engines, replacing OEM part 420950792 to stop air leaks and keep running quality steady.

Overview

This throttle body gasket for Sea-Doo is a direct-fit sealing part built for the 1503 engine used in the Speedster 255. It sits between the throttle body and intake manifold to block unmetered air from entering the engine. Ideal for owners and techs servicing a 2009 to 2011 Speedster 255 who need a dependable replacement for OEM 420950792.

Built For Performance

• Direct replacement for OEM part number 420950792
• Seals the throttle body to intake manifold joint
• Helps eliminate vacuum leaks that cause erratic idle
• Made from gasket material suited to engine bay temperatures
• Die-cut to match the 1503 throttle body mounting surface
• Installs with basic hand tools and no modification

Fits These Machines

• for Sea-Doo Speedster 255 with 1503 engine, 2009-2011
• for Sea-Doo 1503 engine applications using throttle body gasket 420950792

On-The-Job Use

• Intake service that requires removing the throttle body
• Chasing down vacuum leaks on the 1503 engine
• Top-end gasket refresh jobs
• Scheduled maintenance on a 2009-2011 Speedster 255

Specs At A Glance

Good To Know

Q: What symptoms point to a bad throttle body gasket? A: A rough or surging idle, lean-running behavior, or a hissing sound around the throttle body often trace back to a failed gasket. Q: Is it safe to reuse the old gasket after removal? A: No, gaskets crush to seal and should not be reused, so replacing it with a fresh 420950792 equivalent each time the throttle body is removed is recommended.

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