420874430 Fuel Injector for Sea-Doo Speedster Wake 155 1503 2007

Fuel Injector for Sea-Doo Speedster Wake 155 1503

This fuel injector replaces OEM part number 420874430 and provides accurate fuel atomization for the 1503 engine in your Sea-Doo Speedster Wake 155.

Overview

This fuel injector is a direct replacement for the 420874430 unit used on Sea-Doo 1503 engines. It delivers fuel in a fine spray pattern so combustion stays consistent under load. Built for owners and shops servicing a Sea-Doo Speedster Wake 155, this fuel injector helps restore smooth running and reliable starts.

Built For Performance

• Direct fitment for the 420874430 injector position on 1503 engines
• Sealed connector resists water intrusion and vibration
• Corrosion-resistant internals handle ethanol-blended fuel
• Calibrated spray pattern supports clean idle and throttle response
• OEM-style housing dimensions allow drop-in replacement

Fits These Machines

• for Sea-Doo Speedster Wake 155
• for Sea-Doo models equipped with the 1503 engine
• for model year 2007 applications using 420874430

On-The-Job Use

• Fixing rough idle or misfire on a 1503 engine
• Routine fuel system service on a Sea-Doo Speedster Wake 155
• Replacing a clogged or failed injector during repairs
• Troubleshooting a lean or rich running cylinder

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: No, it is an aftermarket fuel injector cross-referenced to 420874430. Verify your engine and injector position before ordering.

Q: Should I replace all injectors at the same time? A: Many technicians replace the full set together on a 1503 engine. Doing so helps maintain even fuel delivery across all cylinders.

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