Caterpillar original Fuel Injector 253-1459 10R-1305 10R-3147 239-4907, OEM Replacement for Caterpillar C11 C13 Construction Machinery Excavator Dump Truck Wheel Loader original new injector

Tailored for B2B heavy equipment fuel system maintenance and repair, the CAT 253-1459 fuel injector is a core diesel injection component marketed for Caterpillar C11 engine platforms. A key catalog distinction applies: in several Caterpillar parts-catalog style listings, 253-1459 is classified as a fuel injection pump group, while 249-0712 refers to the matching injector group included in the assembly. The aftermarket widely uses 253-1459 as the primary search identifier for this replacement part, so buyers are advised to verify the exact part type, engine serial number and machine serial number prior to ordering.

This component supports a range of C11 engine variants, including C11 ACERT, industrial, off-road, construction and mining configurations, with final fitment confirmed via engine serial number, arrangement number and original installed part number. It is commonly associated with CAT 725 and 730 articulated trucks, 966H wheel loaders, and R1600G (C11 repower) and R1700G load haul dump units. Cross-reference numbers include 10R-1305, 10R-3147, 249-0707, 249-0708 and 239-4907, with 249-0712 as the related injector-specific identifier.

The C11 injector assembly regulates fuel delivery volume, injection timing, atomization and delivery pressure to support stable, efficient combustion under high-load, high-temperature, vibration and continuous-duty operating conditions. It operates in tandem with the fuel pump, ECM control strategy, fuel lines, seals and cylinder head injector bore to deliver stable power output, optimized combustion and improved load response for heavy-duty operations.