Caterpillar original Common Rail Fuel Injector 2645A718 Replacement for OEM Parts, Cross Reference 320-0680 for C4.4 C6.6 1104D-E44TA Engines, Excavator 312D2 315D2, 292-3780 original new injector

The 2645A718 high-pressure common rail fuel injector is a heavy-duty diesel injection component engineered as a direct OEM replacement for Caterpillar and Perkins electronic common rail systems. It is fully compatible with CAT C4.4, CAT C6.6, Perkins 1104D and 1106D engine platforms, and fits a wide range of heavy equipment including excavators, wheel loaders, telehandlers, bulldozers, asphalt pavers, compactors, backhoe loaders, generator sets and agricultural tractors. It supports demanding use cases across construction, agriculture, mining, power generation and material handling sectors.

Built with heat-treated alloy steel for exceptional resistance to extreme combustion pressure and temperature, the injector adopts electronic solenoid control to deliver precision fuel metering and optimized spray patterns. Its micro-machined nozzle orifices enhance fuel atomization, which boosts combustion efficiency, reduces fuel consumption and particulate emissions, improves cold start performance, and increases engine power output. Corrosion-resistant internal surfaces also support reliable operation under harsh working conditions.

Every 2645A718 injector is manufactured to OEM specifications and undergoes rigorous testing including flow balance testing, leak testing, spray pattern verification and pressure calibration before delivery. When paired with standard OEM maintenance procedures, it extends service life, reduces unplanned downtime and lowers overall operating costs for B2B equipment operators.