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The c-aterpillar 198-7912 fuel injector is a high-performance, OEM-compatible Common Rail fuel injector specifically engineered for c-aterpillar C9.3 series diesel engines, with cross-reference part numbers 1987912, 198-7912, 155-1819, 174-7526, 179-6020, 198-6877, 153-5938, and 20R-4148. As a critical core component of the C9.3 engine’s fuel delivery system, it strictly adheres to c-aterpillar’s original design standards and performance parameters, while also offering broad compatibility with c-aterpillar 3412E, 3512B series engines to expand applic-ation scenarios. Optimized for the C9.3 engine’s 9.3L displacement and 270–390 horsepower output, this injector adopts HEUI (Hydraulically Actuated Electronically Controlled Unit Injection) technology, equipped with a precision-machined 6-hole VCO nozzle (0.0152 inch hole size) with a 159° spray pattern, delivering ultra-accurate fuel metering (error ≤±2.1%), precise injection timing, and superior atomization effect—its atomization particle size can be as fine as 15.2 microns, forming a 98.6% suspended oil film to achieve an ideal air-fuel mixture ratio, ensuring efficient, stable, and clean combustion. With a rated working pressure of 2150–2550 bar, it effectively reduces fuel consumption by 3.5–5% compared to conventional injectors and minimizes harmful emissions (CO reduced by 33%, HC reduced by 49%) to meet EU Stage V, EPA Tier 4 Final, and global environmental standards. Manufactured in strict compliance with c-aterpillar OEM standards, ISO 9001 and CE certific-ation requirements, each unit undergoes 100% professional factory bench testing, including high-pressure performance verific-ation, spray pattern detection, and strict sealing inspection, ensuring reliable performance and consistent quality even in the harshest heavy-duty working conditions such as high temperature, high dust, and continuous operation. It features a high-strength stainless steel body with vacuum quenching heat treatment (hardness HRC62-65), significantly enhancing wear resistance, corrosion resistance, and service life, which can perfectly match the C9.3 engine’s overhaul cycle and adapt to harsh operating environments such as construction sites, mining areas, industrial workshops, and heavy-duty voc-ational vehicles. As a direct OEM replacement part, it supports plug-and-play installation without any modific-ations to the engine or fuel system, effectively solving common engine problems such as misfires, power loss, excessive fuel consumption, and abnormal emissions caused by injector wear, aging or failure. Available as a new aftermarket part with a 6-month quality warranty (optional 12-month extended warranty), flexible MOQ (1 piece minimum, 2 pieces for bulk order negotiation), neutral or original export packaging (customizable according to customer requirements), and fast global logistics delivery (3-10 working days), the 198-7912 injector is a cost-effective and reliable choice for maintaining the peak performance of c-aterpillar C9.3 series engines, widely supplied to global aftermarket markets including North America, Europe, and Southeast Asia. Its optimized HEUI system control ensures fast response (≤18.5ms), enabling multiple injections to further optimize combustion process, reduce noise, and lower emissions, while its stable performance ensures minimal downtime for equipment operationssuperscript:1superscript:4superscript:6.

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