420874430 Fuel Injector for Sea-Doo GTX 1503 2002-2003

Fuel Injector for Sea-Doo GTX 1503

This fuel injector feeds a precise amount of fuel into the 1503 engine of your Sea-Doo GTX, cross-referencing OEM part number 420874430, and is made for the 2002 to 2003 model years.

Overview

This fuel injector is a replacement fuel delivery component for the 1503 engine in the Sea-Doo GTX. It sprays fuel in a controlled pattern so combustion stays efficient and throttle response stays crisp. It suits owners servicing a rough-running or hard-starting watercraft.

Built For Performance

• Precise fuel metering for stable combustion
• Designed to seat in the 1503 engine intake
• Heat and fuel resistant construction
• Drop-in fit for the factory injector location
• Cross-references OEM part number 420874430

Fits These Machines

• for Sea-Doo GTX 1503, 2002-2003
• for Sea-Doo 1503 engine applications

On-The-Job Use

• Fuel system service after a misfire diagnosis
• Restoring idle quality and acceleration on the water
• Replacing an injector clogged by stale or dirty fuel

Specs At A Glance

Good To Know

Q: How can I tell if my injector is failing? A: Watch for rough idle, misfires, hard starting, and a strong fuel smell. A flow test or scan tool reading can confirm the injector is the cause.

Q: Is sealing hardware included? A: Check the listing contents before ordering, and replace O-rings or seals if they show wear. New seals help prevent leaks at the injector seat.

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