420874848 Fuel Injector for Sea-Doo GTI 1503 2015

Fuel Injector for Sea-Doo

This fuel injector for Sea-Doo delivers precise fuel metering to the 1503 engine, cross-referenced to OEM part number 420874848.

Overview

This fuel injector for Sea-Doo is a direct-fit replacement that sprays atomized fuel into the intake for consistent combustion. It restores smooth idle, crisp throttle response, and reliable power delivery to your 1503-powered watercraft. Built for riders and mechanics who want factory-style fueling without the factory price.

Built For Performance

• Direct replacement for OEM part number 420874848
• Precision-machined nozzle for consistent fuel atomization
• Sealed coil body resists moisture and corrosion in marine use
• Flow rate matched to the 1503 engine's fueling requirements
• Plug-and-play connector for the factory wiring harness
• Constructed from corrosion-resistant internal components

Fits These Machines

• for Sea-Doo GTI with the 1503 engine (2015)

On-The-Job Use

• Replacing a clogged or failed injector that causes misfires or rough idle
• Routine fuel system service on high-hour 1503 engines
• Restoring performance after stale or contaminated fuel
• Marine shops servicing Sea-Doo personal watercraft

Specs At A Glance

Good To Know

Q: How do I know if my fuel injector needs replacing? A: Common signs include rough idle, misfires, hard starting, or a noticeable loss of power. A clogged or failed injector will not deliver the fuel volume the engine needs.

Q: Should I replace all injectors at once? A: If the engine has high hours or the other injectors show similar wear, replacing them as a set helps keep fueling balanced. Otherwise, replacing just the failed unit is acceptable.

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