CUMMINS Factory QSK23 4087886 4087886 4928346 HPI Fuel Injector For QSK60 Q19 Engine Power Generation Set Marine Diesel Parts Original New Injector

The 4087886 fuel injector is a premium OEM-grade common rail component exclusively engineered for c-ummins QSK23 series diesel engines, designed as a direct replacement part that fully complies with c-ummins strict quality standards and specific-ations[superscript:1][superscript:3]. As a core component of the high-pressure injection system, it perfectly matches the QSK23’s 23L displacement and 760-950 HP power range, tailored for harsh heavy-duty applic-ations including mining, large-scale construction machinery, and oil & gas equipment where reliability, durability and precise performance are critical. This injector adopts advanced electronic control technology, functioning as a normally closed valve that opens precisely when receiving signals from the engine’s ECU, ensuring accurate fuel delivery and optimal combustion efficiency[superscript:1][superscript:3]. It features high-pressure fuel delivery up to 1800 bar (26108 psi) — within the 1600-1800 bar range of c-ummins high-pressure common rail injectors[superscript:4] — combined with ultra-fine atomization (≤35 microns) leveraging precision-machined spray holes (0.12mm in diameter, processed by laser and electric discharge machining) to guarantee uniform fuel distribution[superscript:2][superscript:4], effectively reducing exhaust emissions to meet US EPA Tier II and EU Stage IIIA standards, while improving fuel economy by 7-10% compared to conventional injectors. Equipped with an ultra-fast responding solenoid (opening/closing time <0.1ms)[superscript:4], it enables precise multi-stage injection (pre-injection, main injection, post-injection) to optimize combustion efficiency, minimize engine noise and vibration, and extend the engine’s service life to over 20,000 hours before the first overhaul. Constructed with premium wear-resistant materials that meet strict c-ummins quality standards[superscript:1][superscript:3], including heat-treated high-strength alloy steel for the body[superscript:2], stainless steel nozzle tip with tungsten carbide coating (HRC72) for enhanced durability and corrosion resistance[superscript:2], high-temperature resistant copper solenoid coil, and Viton fluoroelastomer seals to ensure effective oil-fuel separation and prevent leakage[superscript:2], this injector boasts excellent adaptability to extreme temperatures (-40°C to 170°C) and harsh working environments. Every unit undergoes strict factory testing, including pressure calibration, flow measurement, spray pattern validation, and leakage checks, to ensure perfect compatibility with c-ummins QSK23 engine control systems and direct replacement for original parts. With a comprehensive set of OEM cross reference numbers, it offers hassle-free installation (adjusted by torque method per c-ummins PT fuel system specific-ations)[superscript:5] and reliable after-sales support, including a 12-month unlimited mileage warranty and global service network coverage[superscript:1][superscript:3], making it the ideal choice for maintaining the performance, efficiency, and longevity of c-ummins QSK23 series engines in demanding industrial scenarios.