Bosch original 0445120091 Common Rail Diesel Fuel Injector for MITSUBISHI Fuso 4M50 Engine Injector Assembly ME193983 ME223749 Replacement for OEM original new injector

This Bosch 0445120091 common rail diesel injector is an original OEM component designed for Mitsubishi Fuso commercial diesel engines, particularly the 4M50 series used in Canter FB70, FE71, and FE84 models. It serves as a direct replacement for cross-reference numbers including 0445120047, ME193983, ME192736, ME193289, 1077550151, 1077550300, and F01G09P1XE. The injector is engineered for high-pressure electronically controlled common rail systems, ensuring precise fuel delivery for demanding commercial vehicle applications, from light-duty trucks to medium-duty fleet operations.

Featuring Bosch's advanced high-pressure common rail technology, this injector delivers superior fuel atomization, stable idle performance, and reduced smoke emissions. The precision nozzle geometry and electronic control calibration support consistent fuel metering across all operating conditions, improving engine efficiency and power restoration. Proper testing—including flow, leak, spray pattern, resistance, and calibration verification—is recommended to confirm optimal performance. The robust construction meets OEM quality standards, making it suitable for both replacement and repair in professional diesel workshops.

Regular maintenance using clean diesel fuel, timely fuel filter replacement, and water separator draining are essential to prevent injector contamination. Common performance issues such as hard starting, rough idle, black smoke, or misfire may indicate excessive return flow, clogged nozzles, or rail pressure problems. Professional diagnostic scanning, return flow testing, and injector balance testing should be performed when symptoms appear. This injector is a reliable choice for restoring engine performance and fuel economy in Mitsubishi Fuso commercial vehicles.