Product Specifications:
Engineered to conquer the relentless demands of heavy-duty regional distribution and punishing off-road construction environments, the 0445120020 is a premium aftermarket Common Rail Fuel Injector. Precision-calibrated specifically for the powerhouse Renault Trucks Premium and Kerax heavy-duty fleets powered by the robust 11.1L 11C, 11E, and dCi diesel engines (Euro 3), this vital component aggressively cures rough engine idling, thick black exhaust smoke, and dangerous loss of hauling horsepower under peak payloads. By leveraging advanced internal flow dynamics and premium high-pressure nozzle metallurgy, it guarantees a genuine plug-and-play installation. Commercial fleet operators and independent truck mechanics can entirely bypass costly dealership ECU software diagnostics, instantly restoring optimal fuel atomization and maximized breakout torque to keep crucial heavy-duty transport operations strictly on schedule.
📊 Part Number Cross Reference
(Data verified via global catalog search – Extensive Interchangeability)
| Manufacturer Ref (Bosch Style) | Original Equipment (Renault Trucks / Iveco) |
| 0445120020 | 50 10 550 956 / 5010550956 |
| 0445120019 / 0986435523 | 503135250 / 501550956 / 50 01 866 647 |
🚛 Fits Applications (Engine & Vehicle)
(Verified application list)
| Make | Model / Application | Engine Size | Year | Engine Code & Specs |
| Renault Trucks | Premium (Distribution, Lander, Route) | 11.1 d | 2001-2006 | 11C, 11E, dCi (Euro 3, 362-412 BHP) |
| Renault Trucks | Kerax Heavy Duty | 11.1 d | 2001-2006 | 11C, 11E, 370, 420 (Euro 3, 362-412 BHP) |
| Iveco | Various Commercial Applications | – | Various | Heavy Duty Commercial |
👨🔧 Tech Notes & Installation Guide (FAQ)
Q: Why should I replace the full set of 6 injectors on my 11C / 11E / dCi engine?
A: Operating heavy commercial trucks with a failing injector causes massive common rail pressure drops and severe cylinder washing. This directly results in violent engine stalling under heavy cargo payloads, increased exhaust emissions, and a critical loss of transport power. We highly recommend utilizing our Volume Discounts to install a fully synchronized set of 6 units to ensure perfectly matched cylinder firing and safely restore maximum factory torque.
Q: Does the 0445120020 injector require IMA coding?
A: No. This common rail injector is strictly calibrated on advanced DCI test benches to perfectly match official OEM nominal flow data. Because its physical delivery quantities are tightly controlled within standard factory tolerances, your vehicle’s ECU will utilize its built-in self-adaptive learning (fuel trim) to automatically synchronize the injection. You get a true plug-and-play installation without needing manual dealer trim code entry.
Q: What is the critical cleaning step before installation?
A: Heavy construction and high-mileage urban route environments expose fuel systems to extreme microscopic contaminants. You must thoroughly flush the entire high-pressure fuel rail system and install brand-new OEM-spec 5-micron fuel filters before cranking the engine to prevent immediate internal valve scoring and firmly protect your warranty.
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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.








