Bosch original For Large Engine D12 Common Rail Injector 20440409 Fuel Diesel Injector Pump Replacement Parts Cross Reference 3829644 for Excavator Accessories 21160093 original new injector

The Bosch 20440409 Electronic Unit Injector (EUI), also referenced under Bosch number 0414702021, is an OEM-standard diesel fuel injection component engineered for heavy-duty Volvo engines equipped with Bosch UIS/PDE fuel injection systems. As a member of the renowned Bosch 702 Series Unit Injector Family, it is built to deliver precise fuel metering and dependable performance in demanding commercial transportation and industrial environments, with compatibility for Euro II and Euro III emission platforms.

Operating on the Electronic Unit Injector principle, the injector combines camshaft-driven mechanical pressurization with ECU-controlled solenoid actuation, atomizing high-pressure fuel through precision nozzle holes for an efficient injection event. Bosch OE manufacturing and precision-ground components support excellent fuel atomization, improved combustion efficiency, stable power output, low emissions, and long service life, while fleet-tested reliability makes it a proven choice for high-utilization diesel operations.

The Bosch 20440409 is widely applied across Volvo FH12, FM12, FL12, and NH12 vehicles powered by D12C and D12D engines, including the D12C340, D12C380, D12C420, D12C460, D12D420, and D12D460. It interchanges with Volvo OE numbers 20381597, 3155044, 5237322, 6050251, 8113408, and 8170569, as well as Bosch exchange numbers 0986441106 and 0986441006. Beyond long-haul trucks, the injector serves construction equipment, mining machinery, agricultural machinery, and industrial power systems, offering distributors and fleet operators a versatile, globally recognized replacement solution.