420874520 Fuel Injector for Sea-Doo Challenger S/C 215 1503 2005-2009

Fuel Injector for Sea-Doo Challenger S/C 215 1503

This fuel injector delivers a measured spray of fuel into the combustion chamber of your 1503 engine, cross-referencing OEM part number 420874520, and is intended for riders maintaining a 2005 to 2009 Sea-Doo Challenger S/C 215.

Overview

This fuel injector is a direct replacement component for the 1503 engine used in the Sea-Doo Challenger S/C 215. It meters fuel into the intake charge so the engine runs cleanly and holds its power band. Install it when a worn injector causes rough running, misfires, or loss of performance.

Built For Performance

• Metered fuel delivery for consistent air-fuel ratio
• Built to fit the 1503 engine intake configuration
• Sealed body to resist fuel and heat exposure
• Direct swap for the original injector position
• Manufactured to match OEM part number 420874520 dimensions

Fits These Machines

• for Sea-Doo Challenger S/C 215, 2005-2009
• for Sea-Doo 1503 engine applications

On-The-Job Use

• Replacing a clogged or failed injector during engine service
• Restoring smooth idle and throttle response on the water
• Fuel system repairs after long storage or contaminated fuel

Specs At A Glance

Good To Know

Q: How do I know my injector needs replacing? A: Common signs include rough idle, misfires, hesitation under acceleration, and fouled spark plugs. A fuel pressure and injector flow test can confirm the fault before you order.

Q: Should I replace all injectors at once? A: On multi-cylinder engines, replacing the full set keeps fuel delivery balanced across cylinders. Inspect the others while the fuel rail is accessible.

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