420950792 Throttle Body Gasket for Sea-Doo Speedster 310 1503 2008

Throttle Body Gasket for Sea-Doo

This throttle body gasket for Sea-Doo seals the mating surface between the throttle body and intake manifold, replacing OEM part 420950792 to prevent air leaks and keep idle quality consistent.

Overview

This throttle body gasket for Sea-Doo is a direct-fit sealing component for the 1503 engine platform used in the Speedster 310. It seals the throttle body to the intake to stop unmetered air from entering the engine. A smart pick for riders and mechanics servicing a 2008 Speedster 310 who want a reliable replacement for OEM 420950792.

Built For Performance

• Direct replacement for OEM part number 420950792
• Seals the throttle body to intake manifold mating surface
• Helps prevent vacuum leaks that cause rough idle
• Constructed from gasket material rated for engine bay heat
• Precision cut to match the 1503 throttle body footprint
• Simple bolt-on installation with no modification required

Fits These Machines

• for Sea-Doo Speedster 310 with 1503 engine, 2008
• for Sea-Doo 1503 engine applications using throttle body gasket 420950792

On-The-Job Use

• Throttle body removal and reinstallation during intake service
• Vacuum leak diagnosis and repair on the 1503 engine
• Top-end refresh and gasket replacement jobs
• Routine maintenance on a 2008 Speedster 310

Specs At A Glance

Good To Know

Q: How do I know if this gasket needs replacing? A: Common signs include a rough or hunting idle, lean-running symptoms, or a whistle near the throttle body, and a torn or flattened gasket found during removal confirms it. Q: Can I reuse the old gasket after pulling the throttle body? A: No, gaskets are single-use crush items, so fitting a fresh one like this 420950792 replacement is the safe move any time the throttle body comes off.

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