Caterpillar original C15 Diesel Engine Fuel Injector 1OR-0955 280-0574 for Construction Machinery, for heavy duty diesel engine application original new injector

Tailored for B2B buyers sourcing Caterpillar fuel system components by part number, engine model or equipment type, the 10R-0955 (common search variant: 1OR-0955) is a heavy-duty diesel fuel injector built for CAT’s core heavy-duty engine platforms. It supports use cases across construction, mining, petroleum, power generation, industrial and on-highway truck sectors, aligned with Caterpillar’s publicly listed application specifications for the covered engine families.

Classified as an Electronic Unit Injector (EUI), this part differs from common rail injector designs by integrating high-pressure fuel injection control directly at each individual cylinder. It is mechanically actuated via the engine valve train, with electronic regulation of injection timing and fuel delivery to deliver precise fuel metering per engine design requirements. It is verified for compatibility with CAT C15, C-15, C15 ACERT, 3406E, C16 and 3456 diesel engines, covering a broad range of original Caterpillar equipment models.

The injector is available in remanufactured (Cat Reman), rebuilt, OEM-style replacement and aftermarket replacement conditions, with order formats including single injectors, 6-piece engine sets and bulk quantities to suit diverse aftermarket purchasing requirements. To eliminate fitment errors, buyers are required to confirm engine model, serial number, machine model, injector part number and provide photos of the old injector prior to shipment. Validated cross-reference numbers are included to support seamless global aftermarket sourcing.