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c-ummins Fuel Injector 3411691 is a premium OEM-grade precision component exclusively engineered for c-ummins N14 series diesel engines, covering CELECT electronic control variants, CELECT Plus variants, and all mechanical N14 models. As a core component of the engine’s patented PT (Pressure-Time) fuel supply system—c-ummins’ iconic technology—it is designed to atomize diesel fuel into ultra-fine, uniformly distributed particles, delivering them to the combustion chamber with precise timing, stable high pressure, and optimal spray patterns. This directly determines the engine’s power output, fuel efficiency, and long-term operational reliability, perfectly aligning with the diesel engine’s core requirements of efficient combustion and high compression ratio performance. With micron-level machining accuracy, it integrates a high-sensitivity hydraulic servo system and premium electronic control components (solenoid valves) for electronic variants, allowing the ECU to control fuel injection timing, fuel injection volume, and injection rate with exceptional precision. Crafted from high-strength heat-resistant alloy steel with strict heat treatment and a specialized anti-corrosion, anti-wear ceramic coating, this injector exhibits superior durability, capable of withstanding extreme operating conditions such as high temperatures (up to 585℃), high pressure (up to 3250bar), heavy dust, and high humidity. It adopts advanced dual-control technology—electronic CELECT control for N14 electronic models and precision mechanical control for mechanical variants—achieving ultra-accurate fuel metering (error ≤±0.015%) and rapid response (＜0.46ms), effectively eliminating fuel supply fluctuations and ensuring smooth engine operation even under sudden load changes. The high-precision 7-hole low-inertia nozzle, treated with anti-carbon deposition and anti-clogging nano-coating, ensures complete fuel atomization, promotes full combustion, reduces fuel consumption by 34-37%, and meets EPA Pre-2002 and relevant industrial emission standards, while also minimizing carbon deposits and extending the engine’s service life. As a direct OEM replacement part, it perfectly matches the original engine’s installation dimensions, interface, and electrical/mechanical parameters, requiring no modific-ations during installation, which significantly reduces maintenance time and labor costs. Each unit undergoes 100% pre-delivery comprehensive testing, including pressure tightness, flow rate calibration, spray pattern inspection, and fatigue resistance testing, complying with ISO 9001 and TS 16949 quality certific-ations. Widely applied in heavy-duty trucks, industrial generator sets, construction machinery, oilfield power modules, and other equipment equipped with c-ummins N14 engines, it provides a reliable, long-lasting, and cost-effective maintenance solution for equipment operators. Exclusively designed for N14 series engines, it is not compatible with ISBE, M11, or other c-ummins engine series, ensuring optimal performance matching and operational safety. Its design aligns with c-ummins’ PT fuel system principles and the diesel engine’s high-compression, high-efficiency characteristics, optimizing combustion efficiency and complementing the engine’s inherent advantages of high torque and low fuel consumption.

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