Fuel Pump Unit Pump 0414799049 A0280749402 for Mercedes-Benz Om900 Om902 Om904

<Product Description> This high-precision diesel electronically controlled unit pump/fuel injection valve assembly (part number: 0414799049 / 0 414 799 049; common interchangeable identification numbers and OE cross-references include 0414799003, 0414799014, 0414799015, 02113695, 04289388, etc.) is mainly compatible with TCD 2013 L04 / L06 and BF4M / BF6M 2013 series 4.8L / 7.2L industrial and engineering diesel engines, widely used in heavy excavators, large loaders, asphalt rollers, and generator sets, etc.) is meticulously crafted. As a core actuator in the fuel supply system that controls fuel atomization quality and injection timing, it can break down high-pressure diesel fuel into ultra-fine droplets with millisecond-level fine adjustments, promoting rapid mixing and combustion of fuel and air.

The components are designed with a "high-wear-resistant mating parts, high-frequency stable response" tooling concept in mind. Internal valve cores and needle valves are made of high-hardness special alloy steel and treated with multi-layer coating hardening protection to effectively resist internal scratches and pressure relief jamming caused by inferior diesel impurities. After the equipment replacement, on-site mechanics and operators will experience a clear and intuitive improvement: ignition starts quickly and smoothly, and idling vibrations are significantly reduced; when encountering high-load excavation, heavy-duty tunneling, or frequent steep slope operations, the power pedal response is extremely responsive, with linear output and strong burst power, and exhaust smoke is significantly reduced, achieving satisfactory fuel control and stable operating efficiency.

<Product Description>

<Product Advantages> Direct manufacturing and standardized management in a physical factory. Effectively reducing procurement costs by addressing the risks of excessive accumulated assembly tolerances, uneven fuel supply, and high-pressure leakage caused by multi-level distribution chains. Through stringent process control at the production base, unnecessary intermediate markups are eliminated, ensuring consistent fuel supply to all engine cylinders, controlling maintenance costs while providing solid and reliable power output for mechanical operation.

Digital dynamic bench testing under all operating conditions. Addressing common issues with inferior replacement parts, such as slow response, internal jamming leading to engine misfiring and vibration, and wasted labor costs due to repeated disassembly and reassembly. All injection components undergo high-pressure, high-frequency dynamic simulation on an automated test bench before leaving the factory, finely adjusting the injection quantity and sealing parameters for each operating condition range, achieving immediate use and saving significant disassembly and debugging time.

Large-scale warehouse with readily available stock for rapid response. For construction machinery and heavy equipment, which are high-attendance production tools, costly delays and losses due to fuel system failures causing equipment downtime are a concern. Our warehouse maintains ample stock, quickly processing orders and shipping within 24-48 hours, greatly reducing logistics gaps and helping fleets quickly resume operations, avoiding lost work time.

Special hardened alloy needle valves and hardened coating protection. Addressing issues such as poor diesel lubrication and sulfur impurities in certain areas that can cause early wear and jamming of components. The core components are made of a special hardened alloy and undergo surface anti-corrosion treatment, significantly extending wear resistance and fatigue life. They perform excellently even under harsh conditions and continuous high load operation, reducing the cost of frequent maintenance.

</Product Advantages>

<Parameter Table>

| Parameter Name | Parameter Value |

| --- | --- |

| Product Name | Engineering and Industrial Diesel Engine Electronic Unit Pump/Injector |

| Standard OE Part Number | 0414799049 |

| Interchangeable Part Number | 0 414 799 049 / 0414799003 / 0414799014 / 02113695 / 04289388 |

| Applicable Engine Platform | TCD 2013 L04/L06 / BF4M2013 / BF6M2013 Diesel Engine |

| Fuel Supply System | PLD Electronic Unit Pump System |

| Core Needle Valve Material | Aerospace-grade hardened bearing steel, corrosion-resistant high-hardness special alloy |

| Surface Treatment Process | High-density ultra-wear-resistant hardened coating |

| Orifice Machining Technology | EDM High-Precision Electrical Discharge Micro-Orifice Machining |

| Maximum Working Pressure | ≥ 1800 bar |

| Working Temperature Range | -40°C to +125°C |

| Internal Sealing Components | High-Temperature Resistant and Swell-Resistant Special Fluororubber (FKM O-Rings) |

| Net Weight per Unit | Approx. 1.90 kg / piece |

| Factory Testing Standards | 100% Automated Bench Test for Full-Condition Flow and Sealing |

| </Parameter Table> | |

<Application Scenarios> Open-pit mining and continuous high-load operation scenarios for large tracked excavators: Large excavators and mining bulldozers operate under high loads for extended periods in high-dust, high-intensity environments in mining areas, exhibiting a high dependence on fuel injection response speed and low-speed, high-torque output. When on-site operators observe reduced digging power, severe speed drops, or black smoke from the exhaust, maintenance personnel promptly replace the equipment with this high-precision fuel injection assembly. After the upgrade, fuel injection establishes quickly and stably, providing smooth and powerful acceleration under heavy loads, ensuring timely and efficient progress of mining operations.

Smooth cruising scenario in highway engineering and road paving machinery: Road pavers and rollers require engines to maintain extremely high speed stability during road construction. Any fluctuation in fuel supply can damage the smoothness of the paved road surface. When the equipment experiences fluctuating speeds or idling vibrations, technicians install high-precision individual fuel injection valves. Precise fuel metering ensures consistent engine output, significantly improving work quality and efficiency.

**Application Scenarios**

Q: Can I use the product directly after installation?

A: Each fuel injection unit undergoes flow and pressure calibration on an automated test bench during factory testing. Provided the fuel lines are clean, it can be directly put into use after installation by professional technicians according to standard specifications and removal of air from the fuel lines.

Q: What is the inventory and delivery time for bulk purchases?

A: We have our own factory and large warehouse, and maintain a large inventory of this model year-round. Standard orders can be packaged and shipped within 24-48 hours, and large-volume orders can also be quickly scheduled for production line setup.

Q: How do you guarantee the quality and performance of your products before they leave the factory?

A: All components undergo assembly in a Class 100 cleanroom and 100% full-condition bench testing, covering key indicators such as sealing, pre-spray volume, full-load spray volume, and oil return volume. These stringent testing standards ensure that the products are of superior quality from the outset.

Q: How long is the warranty period? What about after-sales service?

A: We offer a 12-month warranty period. If a performance failure occurs within the warranty period due to non-human factors, we provide rapid replacement or after-sales technical support to ensure your peace of mind when using our products.