Product Specifications:
Engineered to endure the extreme operating conditions of demanding agricultural fields and relentless commercial job sites, the 0445120157 is a highly durable aftermarket Common Rail Diesel Fuel Injector. Specifically calibrated for the versatile CNH, Fiat, and Iveco heavy-duty diesel engines, this precision component seamlessly restores optimal fuel delivery and maximum hydraulic breakout force.
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Restores Heavy Lifting & PTO Power: Cures sudden engine stalling and brings back the massive low-end pulling torque required for severe harvesting operations or heavy urban hauling.
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Eliminates Thick Black Smoke: Instantly resolves rough engine idling and excessive unburnt fuel, protecting your vital engine components from rapid carbon buildup and DPF failure.
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True Plug & Play Installation: Manufactured as a direct mechanical drop-in, this precision unit requires absolutely zero complex ECU programming, getting your essential tractors and commercial trucks back to work instantly.
📊 Part Number Cross Reference
(Data verified via global catalog search – Extensive Interchangeability)
| Manufacturer Ref (Bosch Style) | Original Equipment (CNH / Fiat / Iveco) |
| 0445120157 | 504255185 / 504255185R |
| 0986435564 | 5042551850 |
🚛 Fits Applications (Engine & Vehicle)
(Verified application list)
| Make | Model / Application | Engine Size | Year | Engine Code & Specs |
| CNH | Various Agricultural & Construction Machinery | – | Various | Heavy Duty Diesel |
| Fiat | Various Commercial Vehicles | – | Various | Commercial Diesel |
| Iveco | Various Commercial & Industrial Applications | – | Various | Heavy Duty Diesel |
👨🔧 Tech Notes & Installation Guide
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💰 Why Replace the Full Set?
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The Risk: Leaving a worn injector in a hard-working agricultural or commercial block creates massive fuel pressure drops. This inevitably leads to violent engine stalling under heavy PTO loads (憋车), accelerated piston wear, and a dangerous loss of operational lifting capacity.
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The Fix: We strongly advise leveraging our Volume Discounts to install a completely synchronized set of 4 or 6 units (depending on your specific engine configuration). This guarantees perfectly balanced cylinder combustion, returning your machinery to a steady, powerful idle and recovering its maximum factory working performance.
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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 field mechanic’s repair downtime.
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⚠️ Critical Cleaning Step:
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Agricultural and construction site fuel tanks are highly prone to dust, mud, and water contamination. Failure to thoroughly flush the entire high-pressure fuel rail and install a brand-new OE-quality 5-micron fuel filter will cause instant contamination damage and strictly void the 30-day manufacturing defect policy.
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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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Keep your fleet running smoothly with our premium Engine Components.
⚖️ 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.
