420874846 Fuel Injector for Sea-Doo RXT IS 255 1503 2009

Fuel Injector for Sea-Doo RXT IS 255

This fuel injector for Sea-Doo RXT IS 255 replaces OEM part number 420874846, delivering precise fuel delivery to keep your 1503 engine running at peak condition.

Overview

This fuel injector is a direct-fit replacement for the Sea-Doo RXT IS 255 powered by the 1503 engine. It meters fuel into the combustion chamber with accuracy, supporting smooth throttle response and consistent power output. Built for riders and mechanics who need a dependable injector without paying OEM prices.

Built For Performance

• Direct replacement for OEM part number 420874846
• Precision-metered fuel spray for consistent combustion
• Sealed coil housing resists moisture and corrosion
• Compatible with the 1503 four-stroke engine platform
• Plug-and-play electrical connector for straightforward installation
• Constructed from fuel-resistant materials for long service life

Fits These Machines

• for Sea-Doo RXT IS 255 1503, 2009

On-The-Job Use

• Restoring fuel delivery on a poorly running personal watercraft
• Routine replacement during engine maintenance or rebuild
• Addressing rough idle or misfire caused by a clogged injector
• Keeping a seasonal PWC fleet ready for the water

Specs At A Glance

Good To Know

Q: Is this an original Sea-Doo part? A: No, this is an aftermarket fuel injector made for Sea-Doo applications and cross-referenced to OEM part number 420874846. It is designed to match the fit and function of the factory injector.

Q: How many injectors does my RXT IS 255 need? A: The 1503 engine uses one injector per cylinder, so verify the total your model requires before ordering. Replacing all of them at once is common practice when one fails.

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