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The c-aterpillar 20R-5078 fuel injector is a premium, OEM-compatible common rail component specifically engineered for c-aterpillar C9.3 series diesel engines, with cross-reference part numbers 20R5078, 456-3545, and 4563545. As a critical core component of the C9.3 engine’s fuel delivery system, it adopts advanced Common Rail Direct Injection (CRDI) technology, fully complying with c-aterpillar’s original design and performance standards, and is also compatible with c-aterpillar C7 series engines for cross-model adaptability. This injector is optimized for the C9.3 engine’s 9.3L displacement and 270–390 horsepower output, featuring a precision-machined 6-hole VCO nozzle that delivers ultra-precise fuel metering, accurate injection timing, and superior atomization, with a rated pressure of 2200–2600 bar to ensure efficient, stable, and clean combustion, while effectively reducing fuel consumption and harmful emissions. Manufactured in strict accordance with c-aterpillar OEM standards, ISO 9001 and IATF 16949 certific-ation requirements, each unit undergoes 100% factory bench testing, including high-pressure performance verific-ation, spray pattern detection, and strict sealing inspection, ensuring reliable performance and consistent quality for heavy-duty working conditions. It features a high-strength alloy steel body with a reinforced anti-corrosion coating, enhancing wear resistance and durability to withstand the harsh operating environments of construction, mining, and industrial sites where C9.3-powered equipment is widely used. As a direct OEM replacement part, it enables plug-and-play installation without any modific-ations to the engine or fuel system, effectively resolving common engine issues such as misfires, power loss, excessive fuel consumption, and abnormal emissions caused by injector wear or failure. Available in both new and remanufactured options, with a 12-month quality warranty, flexible MOQ (1 piece minimum), neutral export packaging (customizable upon request), and fast global delivery, the 20R-5078 injector is a cost-effective and reliable choice for maintaining peak performance of c-aterpillar C9.3 series engines, widely supplied to global aftermarket markets and compatible with a variety of C9.3-powered heavy equipment.

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