Caterpillar original C11 C13 Diesel Engine Fuel Injector 253-1459 10R-3147 for 725 730 966H Excavator Wheel Loader Replacement for OEM new original new injector

Engineered as a direct replacement for the C11 diesel engine fuel injection pump group, this high-precision fuel injector carries the primary reference 253-1459 and cross-supports 249-0712, 10R-1305, 10R-3147, 249-0707, 249-0708, and 239-4907. It is manufactured to OE-style dimensions with hardened internal components, allowing seamless integration into the original C11 fuel system without modification. Every unit is pressure-tested and flow-tested prior to shipment to ensure consistent atomization, accurate fuel metering, and reliable cylinder-to-cylinder combustion balance.

Typical applications include the 725 and 730 articulated trucks, the 966H wheel loader, the R1700G load haul dump, and R1600G C11 repower machines, as well as industrial and off-road C11 ACERT configurations. The injector is well suited for construction, mining, quarry, road construction, industrial power generation, fleet maintenance, aftermarket distribution, and emergency repair channels. Broad cross-reference coverage—including 2531459, 2490712, 10R1305, and 10R3147—simplifies sourcing for export traders and repair workshops managing mixed C11 fleets.

Installing this replacement injector helps operators restore rated engine power, reduce black and white smoke, lower fuel consumption, and eliminate hard-start and misfire symptoms linked to worn injectors. For best service life, use clean diesel, replace fuel filters on schedule, drain the water separator, verify the correct part number against the engine serial number, replace all seals, prime the fuel system, and perform ECM diagnostic testing after installation.