420874432 Fuel Injector for Sea-Doo Challenger SE 255 1503 2009-2011

Fuel Injector for Sea-Doo Challenger SE 255 1503

This fuel injector for Sea-Doo Challenger SE 255 1503 models (OEM cross-reference 420874432) provides accurate fuel metering to keep the 1503 engine running smoothly through the full throttle range.

Overview

This direct-fit fuel injector for Sea-Doo Challenger SE 255 restores dependable fuel delivery to the 1503 engine. A clogged or failing injector can cause hesitation, rough running, and power loss, so swapping in this 420874432 injector returns consistent spray performance to your jet boat. It is aimed at owners and techs servicing 2009 to 2011 Sea-Doo Challenger SE 255 1503 models.

Built For Performance

• Precision-machined nozzle produces a fine, uniform spray for complete combustion
• Calibrated to flow within the 1503 engine's factory fuel delivery specs
• Corrosion-resistant internals handle regular marine exposure
• Mounts directly in the factory injector location with no modifications
• Seals securely at the fuel rail to hold pressure and prevent leaks
• Supplied as one injector for direct replacement

Fits These Machines

• for Sea-Doo Challenger SE 255 1503 (2009)
• for Sea-Doo Challenger SE 255 1503 (2010)
• for Sea-Doo Challenger SE 255 1503 (2011)

On-The-Job Use

• Replacing a clogged or failed injector during routine engine service
• Bringing back smooth idle and crisp throttle response on the water
• Fuel system upkeep on 1503-powered Challenger SE 255 jet boats
• Shop or DIY repairs needing factory-style fuel delivery

Specs At A Glance

Good To Know

Q: Does this injector fit all 2009 to 2011 Challenger SE 255 models? A: It is listed for the Challenger SE 255 with the 1503 engine across those years, but serial number and production differences exist, so verify your engine code and injector number before ordering.

Q: Can I replace just one injector? A: Yes, a single replacement works when only one injector has failed, though replacing aged injectors as a set helps keep fuel delivery balanced across the engine.

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