Common Rail Injector 21371675 Bebe4d24104 Bebe4d24004 Fuel Injector for Vo-lvo MD13 Euro4

<Product Description> This high-pressure electronically controlled common rail nozzle unit (standard part code: 21371675, common OE cross-reference and interchangeable identification numbers include 21371675P01, 21340611, 21028629, 85003963, etc.) is precision-engineered for heavy-duty transport trucks, long-haul freight vehicles, and high-power diesel power platforms (such as D11 and D13 series 10.8L/12.8L diesel engines, fitted to FH and FM series heavy-duty trucks and engineering trucks). As the core micro-metering and spray control actuator of the high-pressure common rail system, it bears the heavy responsibility of accurately metering high-pressure diesel fuel and rapidly dispersing it into ultra-fine atomized particles with a microsecond-level response, promoting comprehensive and uniform mixing of fuel and intake airflow for complete and efficient combustion.

The product adheres to a design protocol of "high-pressure resistant particle refinement and microsecond-level ultra-fast response." Internal needle valve components and control valve cores are made from carefully selected aerospace-grade quenched special alloy steel, combined with ultra-high precision geometric grinding and low-friction polishing. The surface is coated with a high-density, anti-coking hardened plating layer, effectively preventing early erosion caused by diesel impurities. After the parts are installed, mechanics and fleet drivers will experience a significant performance improvement: crisp and rapid starting, with severe vibrations and shaking at low-speed idling completely eliminated; under full-load high-speed cruising or steep incline conditions, the throttle pedal response is firm and smooth, acceleration is rapid and powerful, and exhaust black smoke is significantly reduced, resulting in a satisfactory overall fuel consumption control experience.

<Product Description>

<Product Advantages>
Advantages: Integrated precision manufacturing in a physical intelligent factory.

Problems Solved: Addresses the issues of excessive tolerances in parts matching, uneven fuel supply to cylinders, and high-pressure leakage risks caused by traditional OEM and multi-level distribution chains, while effectively reducing intermediate procurement costs. Value Brought: Leveraging a self-operated standardized production base for precise end-to-end control, eliminating intermediate markups, and ensuring highly consistent fuel injection volume across all cylinders, this reduces maintenance budgets while providing robust and reliable power for vehicle operation.

Advantages: Rigorous quality inspection using a full-condition ultra-high pressure digital test bench.

Problems Solved: Addresses issues such as response delays, pressure relief jamming leading to engine misfires and vibrations, and wasted time and money due to repeated disassembly and adjustment, often caused by inferior parts.

Value Brought: Each injector undergoes automated testing on a test bench before leaving the factory, calibrating flow rate and sealing performance under simulated high-temperature and ultra-high-pressure conditions, ensuring immediate usability upon installation and significantly saving time and costs associated with equipment disassembly and adjustment.

Advantages: Large-scale warehousing with readily available stock for rapid dispatch and shipment.

Problems Solved: Addresses the costly delays and lost workdays caused by fuel system failures affecting high-uptake production tools like construction machinery and commercial vehicles.

Value Brought: The warehousing center maintains ample stock of best-selling specifications year-round, enabling rapid response after order confirmation and priority packing and dispatch within 24-48 hours. This significantly shortens the logistics and delivery cycle, assisting fleets and owners in quickly restoring equipment availability and effectively avoiding downtime losses.

Advantages: Special quenched alloy and ultra-wear-resistant hardened coating.

Problems Solved: Addresses the issue of premature wear and valve core seizure caused by differences in diesel lubricity and sulfur content in different regions.

Value Brought: Core valve components utilize high-strength special bearing steel and surface anti-corrosion hardening treatment, greatly improving fatigue resistance and wear resistance. Even under harsh environments and prolonged high-load operation, it maintains stable performance, avoiding the additional costs of frequent disassembly and repair.

</Product Advantages>

<Parameter Table>

| Parameter Name | Parameter Value |

| --- | --- |

| Product Name | Heavy-Duty Diesel Engine Electronic High-Pressure Common Rail Injector |

| Standard OE Part Number | 21371675 |

| Interchangeable Part Number | 21371675P01 / 21340611 / 21028629 / 85003963 |

| Applicable Engine Platform | D11 / D13 Series 10.8L / 12.8L Diesel Engines |

| Fuel Supply System | High-Pressure Electronic Common Rail Injection System (Common Rail) |

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

| Surface Treatment Process | High-Density, Ultra-Wear-Resistant DLC Hardened Coating |

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

| Maximum Working Pressure | ≥ 2000 bar |

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

| Internal Sealing Components | Original factory-grade high-temperature resistant and swelling-resistant special fluororubber (FKM O-Rings) |

| Net Weight per Unit | Approx. 1.25 kg / piece |

| Factory Testing Standards | 100% automated full-condition bench flow and sealing tests |

| </Parameter Table> | |

<Application Scenarios> Long-haul logistics and highway traction transport: Heavy-duty semi-trailer tractors continuously travel fully loaded on inter-provincial highways and long-distance trunk logistics, placing extremely high demands on engine fuel supply stability and fuel economy. When truck drivers notice sluggish acceleration for overtaking, insufficient power when climbing hills in high gears, or black smoke from the exhaust pipe, mechanics promptly replace the fuel with this high-precision common rail injection valve. After replacement, fuel atomization is extremely fine and uniform, engine power reserves are fully restored, throttle response is brisk, and overall fuel consumption per 100 kilometers is effectively reduced.

Urban construction waste transportation and heavy transport scenarios: Construction waste trucks and concrete mixer trucks frequently start and climb hills in complex road conditions and dusty construction sites. When vehicles experience starting difficulties, severe idling vibrations, or uneven cylinder operation, the maintenance team replaces the entire set of high-specification fuel injection components. Precise electronic injection control allows the engine to instantly release high torque at low speeds, smoothly handling frequent start-stop cycles and heavy loads, ensuring efficient and smooth transportation operations.

**Application Scenarios**

Q: Can I use the product directly after installation? Is it necessary to enter a correction code?

A: Each injector has a unique flow correction code (IMA code) generated during factory testing. It is recommended to use a diagnostic tool to flash the correction code into the engine ECU after installation to achieve optimal fuel efficiency and smoothness.

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 injectors undergo assembly in a Class 100 cleanroom and 100% full-condition bench testing, covering key indicators such as sealing, pre-injection volume, full-load injection volume, and return oil volume. These stringent testing standards ensure that they are high-quality products 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.