| MOQ: | 1 |
| Price: | US $171 |
| Payment Method: | L/C,D/A,D/P,T/T |
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| Product Name | High Quality Common Rail Diesel Fuel Injector |
| Place of Origin | Wuhan,China |
| Warranty | 3 Months |
| Delivery time | 3-15 Days, subject to the order quantity |
| Quality | 100% Tested |
| Packing | Customer Requirement |
| Service | After-Sales Service |
| Size | Standard Size |
| Payment | TT,Trade Assurance,PayPal,Credit Card |
| Advantage | Perfect Fit |
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This model of high-pressure electronic fuel injection common rail nozzle valve body assembly (standard part number code: 7420972224 / 74 20 972 224, common OE cross-reference and interchangeable identification numbers include 20972224, 21340611, 21028629, 85003963, 20708600, etc.) is precision-manufactured for heavy-duty trucks, highway logistics transportation equipment, and high-power diesel power platforms (such as D11 and D13 series 10.8L / 12.8L large displacement inline six-cylinder diesel engines, often equipped in FH and FM series heavy-duty tractor units and engineering trucks). As the key metering and ultra-fine atomization core of the high-pressure common rail fuel supply system, it bears the heavy responsibility of accurately metering high-pressure diesel fuel and rapidly dispersing it into ultra-fine atomized particles with microsecond-level electronic control response. This ensures comprehensive and uniform mixing of fuel and intake airflow, achieving efficient and complete combustion.
The product adheres to the design specifications of "high-pressure resistant particle refinement and microsecond-level ultra-fast response." The internal needle valve assembly and armature control valve core are made of aerospace-grade quenched special alloy steel, combined with ultra-high precision geometric grinding and low-friction polishing. The surface is covered with a high-density, anti-coking hardened coating, which effectively prevents 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 the severe vibration 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 continuous, while significantly reducing black smoke from exhaust, resulting in a satisfactory overall fuel consumption control experience.
Advantages: Integrated intelligent manufacturing and precision engineering in a physical factory.
Problems Solved: Addresses issues arising from traditional OEM and multi-level distribution chains, such as accumulated tolerance issues in parts, uneven fuel supply to cylinders, and high-pressure leakage risks, while effectively reducing intermediate procurement costs.
Value Brought: Utilizing a self-operated standardized production base for precise end-to-end control, eliminating intermediate markups, and ensuring highly consistent fuel injection volume across cylinders, reducing 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 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: Addressing the costly delays and lost work due to fuel system failures causing breakdowns in high-upload productivity tools like construction machinery and commercial vehicles.
Value Brought: The warehousing center maintains ample stock of best-selling specifications year-round. Orders are responded to quickly, with priority packing and shipment within 24-48 hours, significantly shortening logistics and delivery cycles. This helps fleets and owners quickly restore equipment availability and effectively avoids downtime losses.
Advantages: Special quenched alloys and ultra-wear-resistant hardened coatings.
Problems Solved: Addressing 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, significantly improving fatigue resistance and wear resistance. Even under harsh environments and prolonged high-load operation, stable performance is maintained, avoiding the additional costs of frequent disassembly and repairs.
| Parameter Name | Parameter Value |
|---|---|
| Product Name | Heavy-Duty Diesel Engine Electronic High-Pressure Common Rail Injector |
| Standard OE Part Number | 7420972224 |
| Interchangeable Part Number | 74 20 972 224 / 20972224 / 21340611 / 21028629 / 85003963 / 20708600 |
| 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 |
| Orifice Micro-Engraving Technology | EDM High-Precision Electrical Discharge Micro-Orifice Machining |
| Maximum Working Pressure | ≥ 2000 bar |
| Working Temperature Range | -40°C to +125°C |
| Internal Sealing Components | Original Equipment Manufacturer (OEM) High-Temperature Resistant and Swell-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 |
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 valves with this high-precision common rail injector. 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.
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 are the inventory and delivery times for bulk purchases?
A: We own our factory and large warehouse, maintaining a large inventory of this model year-round. Standard orders can be packaged and shipped within 24-48 hours, and large-volume orders can be quickly scheduled for production.
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 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.