Product Specifications:
Engineered to endure the high-mileage demands of commercial passenger transport and the heavy payload cycles of freight logistics, the 0445120081 is a premium aftermarket Common Rail Fuel Injector. Precision-calibrated specifically for the highly dependable FAW commercial trucks and Kinglong passenger buses powered by the Xichai 4DF, 6DF, CA4DF, and CA6DF diesel engines, this vital fuel delivery component aggressively cures rough cold starting, severe exhaust smoking, and dangerous loss of hauling torque under peak operating workloads. By leveraging advanced internal flow dynamics and premium high-pressure nozzle metallurgy, it guarantees a genuine Plug & Play (No Coding Required) installation. Commercial fleet managers and independent mechanics can entirely bypass costly dealership ECU software diagnostics, instantly restoring optimal fuel atomization and maximized breakout torque to keep crucial passenger transit and freight operations strictly on schedule.
📊 Part Number Cross Reference
(Data verified via global catalog search – Extensive Interchangeability)
| Manufacturer Ref (Bosch Style) | Original Equipment (FAW / Kinglong) |
| 0445120081 | 1112010B470-0000 / 1112010470 |
| 0445120331 / 00986AD1001 (Reman) | 30614068832 |
🚛 Fits Applications (Engine & Vehicle)
(Verified application list)
| Make | Model / Application | Engine Size | Year | Engine Code & Specs |
| FAW | Commercial Trucks / Transport Vehicles | – | Various | 4DF, 6DF, CA4DF, CA6DF |
| Kinglong | Commercial Passenger Buses | – | Various | Xichai Engine Series |
👨🔧 Tech Notes & Installation Guide (FAQ)
Q: Why should I replace the full set of 4 or 6 injectors on my CA4DF / CA6DF engine?
A: Operating a commercial truck or passenger bus with a failing injector causes massive common rail pressure drops and severe cylinder washing. This directly results in catastrophic engine failure under heavy passenger or freight payloads, increased exhaust emissions, and a critical loss of operating power. We highly recommend utilizing our Tiered Pricing to install a fully synchronized set of 4 or 6 units to ensure perfectly matched cylinder firing and safely restore maximum factory torque.
Q: Does the 0445120081 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 Auto-adaptive learning (fuel trim) to automatically synchronize the injection. You get a true Plug & Play (No Coding Required) installation without needing manual dealer trim code entry.
Q: What is the critical cleaning step before installation?
A: High-mileage commercial transport 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.
