c-ummins Injector N14 Series (Part Number: 4307516) Product Details

The c-ummins 4307516 fuel injector is a reliable, OEM-standard finished electronic unit injector specifically developed for the c-ummins N14 14L diesel engine platform (1991–2006), with specialized compatibility for N14-based QSNT-C345 engines and NT series models—primarily designed for heavy-duty construction machinery and industrial applications that demand stable performance and strong adaptability. As a fully refined, factory-tested finished product, it features three core competitive advantages tailored for harsh working environments: QSNT-C345 dedicated compatibility, rigorous factory quality control, and enhanced durability for construction scenarios, all engineered to meet c-ummins’ global quality standards, ISO 9001 certification requirements, and the strict quality control protocols of c-ummins’ global manufacturing facilities including CCEC, DCEC, and GCIC. Adhering to c-ummins’ OEM design specifications and comprehensive manufacturing processes—including advanced equipment such as AVL hot test benches, precision testing instruments (Zeiss, Mahr) in c-ummins’ advanced quality laboratories, strict incoming material inspection (IQC) and assembly quality control (IPQC), this finished injector undergoes a full-process quality management system to ensure consistent performance and reliability under high-load, high-vibration, high-dust, and high-temperature operating conditions. Its precision-machined high-power solenoid design integrates seamlessly with the engine’s ECM, enabling precise control over injection timing, fuel delivery volume, and atomization effect, which optimizes combustion efficiency, reduces fuel consumption, and lowers harmful exhaust emissions even under long-term continuous operation. Crafted from high-grade high-strength heat-resistant alloy and hardened steel (strictly screened and tested to meet global material standards), the finished 4307516 injector is built to withstand the harsh operating conditions of construction and industrial fields—sustained high pressure, extreme temperatures, heavy dust, and diesel fuel impurities. As a direct-fit finished replacement, it requires no installation modifications, perfectly matches the N14 QSNT-C345 and NT series engine’s electronic control and fuel supply systems, and each unit undergoes 100% pre-delivery testing (consistent with c-ummins EQA engine quality audit standards, diesel generator set quality inspection specifications, and professional injector performance testing requirements) to ensure trouble-free installation and long-term stable operation. With a standard size and optimized structure, this finished injector comes with original or customized packaging, backed by a 6-month limited warranty, global delivery (3-7 working days), and professional after-sales support, making it the ideal choice for maintaining peak performance in N14 QSNT-C345-powered construction machinery, industrial generators, and heavy-duty equipment, delivering exceptional durability, reduced downtime, and consistent power output. Each engine requires 6 units of this injector, which is perfectly matched to the 14L in-line 6-cylinder structure of QSNT-C345 engines, ensuring synchronous and stable fuel supply for each cylinder.

1. Core Technical Specifications (4307516)

2. Compatible Equipment & Application Scenarios

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