420874846 Fuel Injector for Sea-Doo GTI SE 155 1503 2011-2017

Fuel Injector for Sea-Doo GTI SE 155

This fuel injector delivers precise fuel metering for the Sea-Doo GTI SE 155 with the 1503 engine and serves as an OEM cross-reference for part number 420874846.

Overview

This fuel injector is a direct-fit replacement for the Sea-Doo GTI SE 155 powered by the 1503 engine. It meters fuel into the combustion chamber to keep air-fuel ratios accurate, supporting smooth throttle response and consistent power. Owners of 2011 through 2017 GTI SE 155 models running a tired or clogged injector will find this unit a practical service option for the Sea-Doo GTI SE 155.

Built For Performance

• OEM cross-reference 420874846 for straightforward parts matching
• Precision nozzle design supports consistent fuel atomization
• Sealed body construction resists fuel system contamination
• Factory-style connectors allow plug-and-play installation
• Built to handle the fuel pressure demands of the 1503 engine

Fits These Machines

• for Sea-Doo GTI SE 155 1503, 2011-2017

On-The-Job Use

• Restoring smooth idle and throttle response on the water
• Fuel system service after clogging or rough running symptoms
• Routine maintenance on high-hour 1503 engine personal watercraft

Specs At A Glance

Good To Know

Q: Is this injector an original Sea-Doo part? A: This is an aftermarket fuel injector built to cross-reference OEM part number 420874846 for the Sea-Doo GTI SE 155. It is not an original Sea-Doo branded component.

Q: How many injectors does my GTI SE 155 need? A: The 1503 engine uses multiple injectors, so confirm your model's cylinder count and order the quantity needed. Check your service manual for exact fitment before purchase.

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