c-ummins Injector N14 Series (Part Number: 4307776) Product Details

The c-ummins 4307776 fuel injector is a premium, OEM-standard finished electronic unit injector specifically developed for the c-ummins N14 14L diesel engine platform (1991–2006), with wide compatibility for N14-based QSNT series engines and NT series models—primarily designed for heavy-duty construction machinery, industrial generators, and auxiliary equipment that demand reliable performance, easy installation, and strong adaptability in harsh working environments. As a fully refined, factory-tested and calibrated finished product, it boasts three core competitive advantages: broad N14 platform compatibility, lightweight yet durable structure, and strict OEM-level quality control, all engineered to meet c-ummins’ global quality standards, ISO 9001 certification requirements (verified by Germany’s TÜV Rheinland), 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 intelligent manufacturing processes—including advanced equipment such as AVL hot test benches, Atlas tightening tools, and ABB automatic robots as part of c-ummins Global Operating System (COS) practices, this finished injector undergoes a full-process quality management system (IQC, IPQC, FQC) to ensure consistent performance and reliability under high-load, high-vibration, high-dust, and high-temperature operating conditions. Its precision-machined solenoid design integrates seamlessly with the engine’s ECM, enabling precise control over injection timing and fuel delivery, optimizing combustion efficiency, reducing fuel consumption, and lowering 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 4307776 injector features a compact structure with a size of 23cm*15cm*7cm and a net weight of 1.636KG, built to withstand the harsh operating conditions of construction and industrial fields. As a direct-fit finished replacement, it requires no installation modifications, perfectly matches the N14 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 and diesel generator set quality inspection specifications) to ensure trouble-free installation and long-term stable operation. This finished injector comes with standard 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-powered construction machinery, industrial generators, and heavy-duty auxiliary equipment, delivering exceptional durability, reduced downtime, and consistent power output. It is a brand-new finished product (not remanufactured) with no customization options, and the minimum order quantity is 1 piece, suitable for various mainstream engineering machinery brands. The OEM cross-reference numbers for 4307776 include 4307776-20, 4307516-20, 4384360-20, which are fully interchangeable and compatible with the N14 series fuel system.

1. Core Technical Specifications (4307776)

2. Compatible Equipment & Application Scenarios

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