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The c-aterpillar 328-2573 fuel injector is a high-performance OEM-compatible component exclusively engineered for c-aterpillar C9 series diesel engines, with cross-reference part numbers 3282573, CA3282573 and 10R-7221[2]. As a critical core component of the C9 engine’s fuel injection system, it adopts the advanced HEUI (Hydraulically Actuated Electronically Controlled Unit Injection) technology—a key design of c-aterpillar C9 fuel delivery systems that integrates hydraulic drive and electronic control to achieve precise fuel metering and timing adjustment, perfectly matching the C9 engine’s 8.8-liter displacement and 250-450 horsepower output characteristics[5]. Manufactured in strict compliance with c-aterpillar’s original design standards, ISO 9001 certific-ation requirements, and rigorous quality control processes, this injector serves as a reliable direct replacement for the original C9 engine fuel injection unit, ensuring seamless plug-and-play integration without any modific-ations to the engine or fuel system. As a new aftermarket part sourced from professional manufacturers specializing in diesel fuel injection system components, it is engineered to withstand the harsh operating conditions of construction sites, mining operations, industrial generator sets, and other heavy-duty scenarios where C9-powered equipment is widely applied[1]. Equipped with precision-machined 7-hole nozzles for superior fuel atomization (with droplet size as fine as 10 microns), a high-strength heat-treated alloy steel body, and a corrosion-resistant coating, it delivers stable 24V operation, accurate fuel atomization, and consistent injection performance—essential for optimizing engine combustion efficiency, boosting power output, and reducing harmful emissions to meet EU Stage V equivalent emission standards[5]. Every unit undergoes 100% factory bench testing, including electrical performance, pressure resistance (adapting to the C9 engine’s 2400bar injection pressure[5]), spray pattern (meeting ISO 4010 standards for spray cone angle deviation within ±2°), and sealing detection, as well as strict quality inspections to guarantee long-term reliability. It effectively resolves common engine problems such as misfires, power loss, and excessive fuel consumption caused by poor atomization or injector failure, and features excellent wear and corrosion resistance for an extended service life under heavy-duty working conditions. With in-stock availability (up to 500 units in stock[1]), flexible MOQ (1 piece for small orders, batch discounts available), 12-month quality warranty, fast global delivery (3-7 working days, 5 days delivery from Shiyan, Hubei[1]), and neutral packaging suitable for cross-border export, the 328-2573 injector is widely applicable to various C9-powered heavy equipment, fully meeting the needs of global aftermarket and export customers. It is perfectly matched with C9 engine-powered excavators, loaders, industrial generators, and other construction machinery, providing stable and efficient performance support for equipment operation.

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