Bosch original Diesel Fuel Injector QSB4.5 Engine, High Pressure Common Rail Diesel Injector 0445120184, Cross Reference 0445120071, 0445120185, Replacement for OEM 0445120161 original new injector

Built around Bosch Common Rail Injection (CRI) technology, the BOSCH 0445120184 is an original new diesel injector for Cummins ISB6.7 and QSB6.7 engines. As part of the Bosch 120 Series, it works with fuel supplied by the CP3 pump and stored in the common rail accumulator. ECU signals activate the solenoid and control valve, allowing high-pressure fuel to pass through precision nozzle holes and atomize inside the combustion chamber.
Precision fuel metering and consistent spray patterns support efficient combustion, accurate injection timing and reliable fuel delivery. Designed for ultra-high-pressure operation, the injector is manufactured from hardened alloy steel using Bosch heat-treatment technology and produced according to Bosch OE specifiions. Its stated benefits include improved fuel economy, enhanced torque output and throttle response, reduced particulate emissions, and support for Euro III, Euro IV and Euro V compliance, together with durability in demanding operating environments.
Cross-reference coverage includes 0445120071, 0445120050, 0445120185, 0445120193 and Bosch exchange number 0986435518, alongside listed Cummins and Mopar references. Documented appliions cover Dodge Ram 2500, 3500, 4500 and 5500 models, commercial vehicles, industrial diesel engines, agricultural machinery, construction equipment, marine systems and power generation equipment. The service schedule calls for balance-rate, return-flow and ECU checks every 50,000 km, bench testing and seal replacement every 100,000 km, and full performance calibration at 150,000 km.