Product Specifications:
Engineered to endure the grueling stop-and-go cycles of urban delivery routes and regional cargo distribution, the 0445120049 is a heavy-duty aftermarket Common Rail Diesel Fuel Injector perfectly calibrated for the robust Mitsubishi Fuso 4M50 (4.9L) 4-cylinder engines. Operating as the vital fuel delivery core for commercial workhorses like the Fuso Canter and Fighter series box trucks, this precision component seamlessly restores factory-level fuel atomization and economy. Replacing a sluggish or leaking injector with this premium unit instantly cures erratic engine idling, drastically reduces excessive black exhaust smoke during heavy acceleration, and brings back the crucial pulling torque needed for hauling fully loaded freight. Built as a direct mechanical drop-in, it guarantees true plug-and-play installation with zero complex ECU coding required, getting your commercial fleet back on the delivery route without expensive dealership diagnostic delays.
📊 Part Number Cross Reference
(Data verified via global catalog search – Extensive Interchangeability)
| Manufacturer Ref (Bosch Style) | Original Equipment (Mitsubishi Fuso / Mercedes) |
| 0445120049 | ME 223750 / ME223750 |
| [Alternative Replacements] | ME 223002 / ME223002 |
🚛 Fits Applications (Engine & Vehicle)
(Verified application list)
| Make | Model / Application | Engine Size | Year | Engine Code & Specs |
| Mitsubishi Fuso | Canter, Fighter (Commercial Box Trucks) | 4.9L | Various | 4M50 (4-Cyl) |
| Mercedes | Various Commercial Applications | – | Various | Medium Duty |
👨🔧 Tech Notes & Installation Guide
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💰 Why Replace the Full Set?
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The Risk: Leaving a worn or clogged injector in a hard-working 4-cylinder 4M50 block causes massive fuel pressure imbalances across the rail. This inevitably leads to violent cabin vibrations at idle, rapid DPF soot accumulation, and a dangerous loss of highway merging power when the truck is fully loaded.
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The Fix: We strongly advise taking full advantage of our Volume Discounts to install a completely synchronized set of 4 units. This guarantees perfectly balanced cylinder combustion, returning your commercial truck to a whisper-quiet idle and recovering its maximum factory payload capacity.
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✅ Direct Replacement (No Coding Required):
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Rigorously flow-tested on advanced DCI calibration benches, this unit delivers true plug-and-play functionality. It requires zero IMA programming, bypassing expensive electronic diagnostic tools and slashing your mechanic’s workshop labor time.
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⚠️ Critical Cleaning Step:
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Commercial delivery truck fuel tanks accumulate heavy sludge and metallic micro-debris over time. You absolutely must thoroughly flush the entire high-pressure fuel rail and lines before installation. Always equip a brand-new 5-micron fuel filter to protect the precision internal nozzle from instant destruction.
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🔍 Explore More Heavy Duty Parts:
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Looking for more options? Browse our complete selection of Fuel Injectors & Pumps.
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⚖️ Legal Disclaimer
Part numbers, OE numbers, and brand names mentioned above are for reference and identification purposes only. This product is a compatible aftermarket replacement part and is NOT manufactured, sponsored, or affiliated with the original equipment manufacturers.
