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The c-aterpillar 456-3509 fuel injector is a high-precision Common Rail fuel injector exclusively engineered for c-aterpillar C9.3 series diesel engines, with cross-reference part numbers 4563509, 456-3509, and CA4563509, and it also replaces related injector part numbers including 386-1809, 382-0709, and 20R-5075superscript:4superscript:5;. As a critical core component of the C9.3 engine’s fuel injection system, it strictly adheres to c-aterpillar’s original design standards and performance parameters, perfectly adapting to the C9.3 engine’s 9.3L displacement and 280–390 horsepower output, and is widely compatible with various C9.3-powered heavy-duty equipment across construction, mining, and industrial fields. Equipped with a precision-machined 6-hole VCO nozzle (0.0157 inch hole size) and a 158° spray pattern, this injector achieves ultra-high fuel metering accuracy (error ≤±0.9%), precise injection timing, and excellent atomization effect—its atomization particle size is as fine as 12.2 microns, forming a 99.9% suspended oil film to realize the optimal air-fuel mixture ratio, ensuring efficient, stable, and clean combustion. With a rated working pressure of 2500–2900 bar, it reduces fuel consumption by 5.5–7.0% compared to traditional injectors and significantly reduces harmful emissions (CO reduced by 48%, HC reduced by 62%), fully complying with EU Stage V, EPA Tier 4 Final, and other strict global environmental standards. Manufactured in strict accordance with c-aterpillar OEM standards and ISO 9001:2015 certific-ation requirements, each 456-3509 injector undergoes 100% professional factory bench testing, including electrical performance, high-pressure sealing, spray pattern, leakage, and durability tests, with pre-production samples and pre-shipment final inspections conducted to ensure quality consistencysuperscript:7;. It features a high-strength steel body treated with vacuum quenching (hardness HRC71-74)superscript:6;, greatly enhancing wear resistance and corrosion resistance, and its service life perfectly matches the C9.3 engine’s overhaul cycle, making it ideal for construction sites, mining areas, industrial workshops, and other severe working scenarios. As a direct OEM replacement part, it supports plug-and-play installation without any modific-ations to the engine or fuel system, and full-set replacement is highly recommended to ensure the engine’s peak performance, avoiding potential malfunctions caused by mixing genuine and aftermarket injectors. It effectively resolves common engine issues such as misfires, power loss, excessive fuel consumption, and abnormal emissions resulting from injector wear, aging, or failure. Available as a new aftermarket part, it comes with a 12-month quality warranty (consistent with aftermarket supply standards)superscript:6;, flexible MOQ (1 piece for sample orders, 6 pieces for bulk orders)superscript:5;, neutral or original c-aterpillar export packaging (customizable per customer requirements)superscript:7;, and fast global logistics delivery (2-4 working days via DHL, FedEx, or TNT). The 456-3509 injector is a cost-effective and dependable choice for maintaining the optimal performance of c-aterpillar C9.3 series engines, widely supplied to global aftermarket markets including Oceania, Southeast Asia, the Middle East, and Europe. Its optimized electromagnetic solenoid design ensures ultra-fast response (≤15.0ms), enabling multiple injections to further optimize the combustion process, reduce engine noise, and lower emissions—one of its key features is the ability to reduce injection noise significantly while achieving first-class emission control, power, and fuel consumption levels. With a weekly supply capacity of up to 460 pieces (1840 pieces per month), it can meet large bulk order demands. Boasting a net weight of 0.90kg (1.98 lbs) and compact dimensions (28x7x14cm)superscript:6;, it is easy to install and store, perfectly fitting the C9.3 engine’s installation space, and its packaging is designed for convenient transportation and storage. Each unit is brand-new and manufactured to original standards, ensuring consistent performance and long-term reliability for C9.3 engine applic-ations, with customizable packaging and flexible payment terms available upon request.

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