326-4740 10r-7676 Fuel Injector 32f61-00022 for Cater-pillar C4.2 315dl 319d Engine

This model of high-pressure electronically controlled common rail injector assembly (standard part identification code: 326-4740 / 3264740, common OE cross-reference and interchangeable numbers include 10R-7675, 10R7675, 326-4739, 295-1410, etc.) is meticulously manufactured for heavy engineering construction machinery, large-scale operating facilities, and industrial diesel power platforms (such as C6.4 and C6.6 series 6.6L inline six-cylinder diesel engines, commonly equipped in 320D, 320D L, 321D CR tracked excavators, 924H and 928H wheel loaders, and 120M graders, etc.). As a key metering and ultra-fine atomization actuator in the high-pressure common rail fuel supply system, it bears the crucial responsibility of precisely metering high-pressure diesel fuel and rapidly atomizing it into ultra-fine particles under microsecond-level electronic control commands. This ensures thorough and uniform mixing of fuel and intake airflow, achieving complete and efficient combustion.

Based on industrial manufacturing standards of "ultra-high pressure micro-atomization and millisecond-level ultra-fast response," the product's internal core needle valve assembly and control valve core are made of aerospace-grade quenched special alloy steel, combined with ultra-high precision geometric grinding and low-friction polishing. The surface is covered with a dense, anti-coking hardened coating, effectively preventing early erosion caused by diesel fuel impurities. After the replacement parts are installed, mechanics and equipment operators will experience a clear and intuitive improvement in performance: ignition starts crisply and quickly, and the severe vibrations at low idling speeds are reduced and smoothed out; under heavy-duty excavation, high-load bulldozing, or steep slope climbing conditions, the control lever and accelerator pedal respond smoothly and precisely, acceleration is rapid and powerful, and exhaust black smoke is significantly reduced, resulting in satisfactory fuel consumption control and a smooth driving experience.

Open-pit mining and large tracked excavator operations: Large tracked excavators continuously excavate and load large rocks in harsh, high-dust, and high-load environments, requiring extremely high stability in fuel supply and explosive power. When operators notice a decrease in digging force, severe idling vibration, or black smoke from the exhaust pipe, maintenance personnel should promptly replace the fuel injector with this high-precision model. After replacement, fuel injection atomization is extremely uniform, and the hydraulic system power output is restored to ample and stable levels, ensuring efficient progress in mining operations.

Large-scale highway infrastructure construction and continuous leveling operations: When graders and wheel loaders are used in highway infrastructure construction, their engines need to maintain a stable low-speed, high-torque output for extended periods. When equipment experiences starting difficulties, sluggish acceleration, or abnormally high fuel consumption, the maintenance team will replace the entire fuel supply system. Precise electronic injection control restores smooth engine operation, significantly improving fuel efficiency and acceleration response, avoiding downtime costs.