420874432 Fuel Injector for Sea-Doo Challenger SE 510 1503 2010

Fuel Injector for Sea-Doo Challenger SE 510 1503

This fuel injector for Sea-Doo Challenger SE 510 1503 models (OEM cross-reference 420874432) delivers a precise, metered spray pattern that keeps the 1503 engine running clean and strong.

Overview

This direct-fit fuel injector for Sea-Doo Challenger SE 510 restores proper fuel delivery to the 1503 engine. A worn or clogged injector can cause rough idle, poor acceleration, and hard starting, so replacing it with this 420874432 injector brings consistent spray performance back to your jet boat. It is designed for owners and mechanics servicing 2010 Sea-Doo Challenger SE 510 1503 models.

Built For Performance

• Precision-machined nozzle delivers an even, atomized spray pattern for efficient combustion
• Structured to flow within the 1503 engine's factory fuel delivery parameters
• Built with corrosion-resistant internal components suited to marine environments
• Fits directly in place of the original injector with no adapter needed
• Seals tightly against the fuel rail to prevent leaks or pressure loss
• Shipped as a single injector for straightforward replacement

Fits These Machines

• for Sea-Doo Challenger SE 510 1503 (2010)

On-The-Job Use

• Replacing a fouled or non-functioning injector during engine service
• Restoring smooth idle and throttle response on the water
• Fuel system maintenance on 1503-powered Challenger jet boats
• Shop or DIY repair jobs where factory-style fuel delivery is required

Specs At A Glance

Good To Know

Q: Will this injector fit my Sea-Doo Challenger SE 510? A: It is listed for the Challenger SE 510 with the 1503 engine, but serial number and production variations exist, so confirm your engine code and injector number before ordering.

Q: Should I replace all injectors at once? A: If the others are aged or fouled, replacing them as a set helps keep fuel delivery balanced across cylinders, though a single replacement is fine when only one has failed.

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