420874430 Fuel Injector for Sea-Doo Challenger SP 310 1503 2010

Fuel Injector for Sea-Doo Challenger SP 310 1503

This fuel injector replaces OEM part 420874430 and delivers measured fuel into the 1503 engine of a 2010 Sea-Doo Challenger SP 310.

Overview

This fuel injector is a direct-fit replacement for the 1503 engine used in the 2010 Sea-Doo Challenger SP 310. Cross-referenced to OEM 420874430, it meters fuel into the combustion chamber so the engine runs clean and consistent. It suits owners servicing a single injector or refreshing the full set on a 1503-powered jet boat.

Built For Performance

• Cross-referenced to OEM part number 420874430
• Built for the 1503 four-stroke engine platform
• Precision nozzle for consistent fuel atomization
• Sealed electrical connector to resist moisture
• Direct fit into the factory injector location

Fits These Machines

• for Sea-Doo Challenger SP 310 with 1503 engine, 2010

On-The-Job Use

• Replacing a clogged or failed injector
• Restoring rough idle and poor throttle response
• Routine fuel system service on a 1503 engine

Specs At A Glance

Good To Know

Q: Is this a genuine Sea-Doo part? A: No. It is an aftermarket fuel injector made to fit the 1503 engine and cross-referenced to OEM 420874430.

Q: How many should I order? A: Order one for each injector you are replacing, and confirm the count for your engine 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.