420874432 Fuel Injector for Sea-Doo Speedster 510 1503 2010-2011

Fuel Injector for Sea-Doo

This fuel injector delivers a precise metered spray of fuel into the engine, replacing OEM part 420874432 on compatible Sea-Doo watercraft.

Overview

This fuel injector is a direct-fit replacement built to restore proper fuel delivery on Sea-Doo 1503 510 engines. A failing injector can cause rough running, hard starts, or power loss, so this fuel injector gets fuel atomization back on track. It suits owners and mechanics servicing the Sea-Doo Speedster models.

Built For Performance

• Direct replacement for OEM part number 420874432
• Built for the 1503 510 engine platform
• Precise fuel metering for consistent combustion
• Sealed body resists fuel and heat exposure
• Drop-in fit for the factory injector location

Fits These Machines

• for Sea-Doo Speedster 510 1503, 2010-2011

On-The-Job Use

• Restoring fuel delivery on 1503 510 engine rebuilds
• Replacing clogged or failed injectors during service
• Keeping sport boat performance consistent on the water

Specs At A Glance

Good To Know

Q: Does this injector replace OEM part 420874432? A: It is made to cross-reference that OEM number so it fits the listed Sea-Doo 1503 510 applications. Confirm your engine code and year before ordering.

Q: How many injectors does my engine need? A: Multi-cylinder engines use one injector per cylinder, so order the quantity your model requires. Verify against your machine's layout 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.