420874848 Fuel Injector for Sea-Doo GTI DTF 1503 2016

Fuel Injector for Sea-Doo GTI DTF 1503

This fuel injector for Sea-Doo replaces OEM part 420874848, delivering precise fuel delivery for the 1503 engine in the 2016 GTI DTF.

Overview

This fuel injector is a direct-fit replacement for the 2016 Sea-Doo GTI DTF 1503, replacing OEM part number 420874848. It meters and atomizes fuel into the intake for consistent combustion and dependable throttle response. Built for riders and shops servicing the 1503 engine platform.

Built For Performance

• Direct cross-reference to OEM 420874848 for straightforward replacement
• Precision-machined nozzle for consistent fuel spray pattern
• Sealed coil housing resists moisture and vibration in marine conditions
• Corrosion-resistant internal components suited to watercraft use
• Delivers stable fuel flow across the RPM range

Fits These Machines

• for Sea-Doo GTI DTF 1503 (2016)

On-The-Job Use

• Restoring rough-running or misfiring 1503 engines
• Routine fuel system service and injector replacement
• Diagnosing lean or rich condition faults
• Rebuilding a watercraft top end or fuel delivery system

Specs At A Glance

Good To Know

Q: What does this fuel injector do? A: It sprays a metered amount of fuel into the engine intake for combustion. A faulty injector can cause hard starting, misfires, or rough idle.

Q: Do I need to replace all injectors at once? A: Many technicians replace the full set when one fails to keep fueling balanced across cylinders. Always confirm the part number 420874848 matches your unit.

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