Product Specifications:
Engineered to withstand the relentless torque loads and extreme dusty conditions of high-acreage agricultural harvesting and continuous industrial earthmoving, the 0445120272 is a formidable aftermarket Common Rail Diesel Fuel Injector. Precision-calibrated to fulfill the exact hydraulic fuel delivery demands of the massive 8.3L Cummins ISC and QSC 6-cylinder diesel engines (the powerhouse behind Case IH Magnum and New Holland heavy tractors), this heavy-duty core instantly neutralizes erratic fuel pressure and sluggish PTO response. Manufactured with pre-set internal flow dynamics for seamless ECU integration, it guarantees a genuine drop-in installation, enabling farm managers and equipment mechanics to entirely bypass expensive dealership diagnostic holds and rapidly recover maximum drawbar pull and full-throttle trenching efficiency.
📊 Part Number Cross Reference
(Data verified via global catalog search – Extensive Interchangeability)
| Manufacturer Ref (Bosch Style) | Original Equipment (Cummins / Case IH) |
| 0445120272 | 5263305 / 4940439 / 3973059 |
| 0445120112 / 0445120035 / 0986435532 | 87581565 / 3965720 |
🚛 Fits Applications (Engine & Vehicle)
(Verified application list)
| Make | Model / Application | Engine Size | Year | Engine Code & Specs |
| Cummins | Commercial Haulers & Industrial Machinery | 8.3 d | Various | ISC, QSC 8.3L (6-Cylinder) |
| Case IH | Magnum Tractors (215, 245, 275, 305, 335) | 8.3 d | 2006-2013 | 8.3L Tier 3 Diesel |
| New Holland | Heavy Tractors (T8010, T8020, T8030, T8040) | 8.3 d | 2006-2013 | 8.3L High-Torque Diesel |
👨🔧 Tech Notes & Installation Guide
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💰 Why Replace the Full Set?
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The Risk: Operating heavy agricultural machinery with a degrading injector causes severe common rail pressure instability. This leads directly to violent engine shuddering under maximum PTO loads, critical fuel dilution in engine oil, and rapid exhaust aftertreatment soot accumulation, which can trigger an unexpected machinery breakdown during crucial harvesting windows.
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The Fix: We highly recommend taking advantage of our Volume Discounts to install a fully synchronized set of 6 units. This ensures perfectly balanced cylinder firing, instantly restoring a stable, robust idle and safely recovering your tractor’s peak towing and drawbar force.
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✅ Direct Replacement (No Coding Required):
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Factory-tested on advanced DCI calibration benches, this precision unit delivers auto-adaptive flow readiness straight out of the box. You can entirely bypass complex IMA coding requirements and expensive dealership software tools, drastically slashing your field mechanic’s repair downtime.
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⚠️ Critical Cleaning Step:
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Agricultural and construction fuel tanks naturally ingest highly abrasive silica dust and moisture condensation over time. You must thoroughly flush the entire high-pressure fuel rail system and install a brand-new OE-quality 5-micron fuel filter prior to ignition; failure to execute this step will cause instant internal contamination scoring 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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⚖️ 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.
