420874520 Fuel Injector for Sea-Doo Challenger Wake 430 1503 2008

Fuel Injector for Sea-Doo Challenger Wake 430 1503

This fuel injector for Sea-Doo delivers a precise, metered spray of fuel into the 1503 engine, restoring smooth combustion and dependable throttle response in place of a clogged or failed unit, cross-referencing 420874520.

Overview

This fuel injector is built to feed the 1503 engine in the Sea-Doo Challenger Wake 430 with an accurate, atomized fuel charge on every cycle. A healthy fuel injector for Sea-Doo keeps air and fuel balanced so the engine idles cleanly and pulls hard through the rpm range. It suits riders replacing a leaking, gummed-up, or dead injector on a 2008 model.

Built For Performance

• Precision nozzle geometry for a consistent cone-shaped spray pattern
• Sealed electrical connector to keep moisture out of the solenoid
• Corrosion-resistant body suited to marine engine compartments
• Flow-matched to the factory 1503 fuel delivery specification
• OEM-style fitment for straightforward replacement of the original unit

Fits These Machines

• for Sea-Doo Challenger Wake 430, 2008
• for Sea-Doo 1503 four-stroke engine applications

On-The-Job Use

• Restoring rough or uneven idle on a four-stroke Sea-Doo
• Clearing a misfire or lean condition traced to a bad injector
• Scheduled fuel system service on a 1503 engine
• Bringing a long-stored PWC back into running condition

Specs At A Glance

Good To Know

Q: How do I know this injector fits my watercraft? A: Match the part number 420874520 and the 1503 engine listed for your model year before ordering. Serial number differences can affect fitment, so confirm against your machine.

Q: Should I replace one injector or all of them? A: If the others are original and aged, replacing them as a set can keep fuel delivery even across all cylinders. A single replacement is fine when only one unit has failed.

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