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The 4077076 fuel injector is a high-stability OEM-compatible common rail component exclusively engineered for c-ummins QSK60 series diesel engines, fully complying with c-ummins strict quality standards and technical specific-ations[superscript:4]. As a core part of the QSK60’s CM850 modular common rail fuel system[superscript:6], it is designed as a direct replacement part to seamlessly match the engine’s 60.2L displacement and 1715-2240kW (2300-3000hp) power range, perfectly adapting to the V-type 16-cylinder layout and meeting the fuel system’s high-pressure requirements (up to 1800 bar / 26108 psi) to ensure stable and efficient fuel delivery even under long-term full-load operation in harsh heavy-duty scenarios. Specially optimized for demanding applic-ations including large mining trucks, marine main and auxiliary engines, large industrial generator sets, and offshore oilfield equipment, where pressure stability, low emissions, and easy maintenance are paramount—this injector is fully compatible with QSK60 engines requiring Tier 3/4 emission compliance[superscript:2]. Functioning as a high-precision electronically controlled solenoid valve[superscript:4], it responds accurately to signals from the engine’s ECU (Electronic Control Unit), with an ultra-fast response time of <0.1ms, ensuring precise fuel metering and optimal combustion efficiency even in complex working environments such as dusty mining sites, marine navigation, offshore operations, and high-intensity industrial work. It features high-pressure fuel delivery up to 1800 bar, combined with ultra-fine atomization via precision-machined spray holes (0.12mm in diameter) and a 0.002-0.004mm needle valve clearance[superscript:2], cooperating with the QSK60’s 16-cylinder design to ensure uniform fuel-air mixing, reducing exhaust emissions to meet US EPA Tier 3, EU Stage IIIA, and IMO Tier II-III standards, while improving fuel economy and reducing engine noise and vibration. Equipped with advanced multi-stage injection technology (pre-injection, main injection, post-injection), it optimizes the combustion process, enhances idle stability, and significantly extends the engine’s service life. Its enhanced anti-wear and corrosion-resistant design, featuring a precision-ground anti-wear alloy plunger and hardened stainless steel nozzle tip, effectively resists abrasion, corrosion from harsh fuels and seawater, and high-pressure impact, ensuring stable injection performance even in harsh working conditions with fuel impurities or extreme temperature fluctuations. Constructed with premium heavy-duty materials through strict screening[superscript:4], including heat-treated high-strength alloy steel for the body (to withstand high-pressure fatigue), high-temperature resistant copper solenoid coil, and metric O-rings for effective oil-fuel separation and leakage prevention[superscript:5], this injector boasts excellent adaptability to extreme temperatures (-40°C to 180°C) and harsh working conditions. It meets strict installation precision requirements, with a recommended installation torque following c-ummins OEM specific-ations (45 N·m for fuel rail bolts[superscript:6]); professional installation with the use of c-ummins INSITE diagnostic tools is recommended to ensure perfect fit with the QSK60 cylinder head (fuel rail mounted between cylinder 4 and 5[superscript:6]) and accurate injection timing calibration. Every unit undergoes rigorous factory testing[superscript:4], including pressure calibration, flow measurement, spray pattern validation, and leakage checks, to ensure full compatibility with c-ummins QSK60 engine control systems and direct replacement for original parts. With a comprehensive set of OEM cross reference numbers, it offers ready-to-ship inventory with 3-7 days global delivery, hassle-free maintenance (compliant with 250-2000 hour maintenance cycle[superscript:2]), and reliable after-sales support, including a 12-month warranty, making it the ideal choice for maintaining the performance, efficiency, and longevity of c-ummins QSK60 series engines in demanding mining, marine, oilfield, and industrial power generation scenarios.

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