| MOQ: | 1 |
| Price: | US $171 |
| Payment Method: | L/C,D/A,D/P,T/T |
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Product Name
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High Quality Common Rail Diesel Fuel Injector
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Place of Origin
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Wuhan,China
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Warranty
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3 Months
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Delivery time
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3-15 Days, subject to the order quantity
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Quality
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100% Tested
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Packing
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Customer Requirement
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Service
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After-Sales Service
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Size
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Standard Size
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Payment
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TT,Trade Assurance,PayPal,Credit Card
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Advantage
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Perfect Fit
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This specification features a high-pressure electronically controlled common rail fuel injection valve body assembly (part number: 7421582096 / 74 21 582 096; common OE cross-reference and interchangeable identification numbers include 21582096, 21340611, 20708600, 85003963, 21947757, etc., primarily matched with D11 and D13 series 10.8L / 12.8L large-displacement inline six-cylinder heavy-duty diesel power platforms, widely installed in highway heavy-duty trucks, semi-trailer tractors, heavy-duty engineering dump trucks, and large special transport equipment). As the micro-metering and ultra-fine spray execution unit in the entire fuel supply system, it is responsible for accurately metering high-pressure diesel fuel and rapidly dispersing it into ultra-fine atomized particles under microsecond-level electrical signal commands, promoting thorough mixing and combustion of fuel with the intake airflow.
The product adheres to the precision standards of "microscopic ultra-fine atomization and millisecond-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, ultra-wear-resistant DLC hardened coating, effectively preventing early erosion and jamming caused by diesel impurities. After the parts are installed, drivers and mechanics will experience a very clear and intuitive improvement: crisp and rapid cold starts in the morning, and the severe vibration at low-speed idling has subsided and become smooth; under heavy-load overtaking, steep incline, or long-term high-speed cruising conditions, the accelerator pedal response is firm and sensitive, acceleration is smooth and the power is continuous, while exhaust smoke is significantly improved, resulting in satisfactory fuel consumption control and a smooth driving experience.
| Parameter Name | Parameter Value |
|---|---|
| Product Name | Heavy-Duty Diesel Engine Electronic High-Pressure Common Rail Injector |
| Standard OE Part Number | 7421582096 |
| Interchangeable Part Numbers | 7421582096 / 21582096 / 21340611 / 20708600 / 85003963 / 21947757 |
| Applicable Engine Platform | D11 / D13 Series 10.8L / 12.8L Diesel Engines |
| Fuel Supply System | High-Pressure Electronic Common Rail Injection System |
| 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-hole 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. 1.28 kg / piece |
| Factory Testing Standards | 100% Automated Bench Test for Flow Rate and Sealing under Full Operating Conditions |
Long-haul logistics and heavy-duty tractor-trailer inter-provincial transportation: Heavy-duty semi-trailer tractors and highway trucks often operate under full load and high load conditions during inter-provincial long-haul transportation, placing extremely high demands on the continuous fuel supply stability and fuel control of the injectors. When truck drivers notice a lack of acceleration and insufficient power when climbing hills, resulting in reduced power, the maintenance team promptly replaces this high-precision common rail injector valve. After the upgrade, fuel injection establishes quickly and stably, providing smooth and powerful acceleration under heavy loads, ensuring timely and efficient long-distance transportation.
Urban construction waste transportation and large-tonnage dump truck transportation scenarios: Construction dump trucks and heavy-duty transport vehicles 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 fuel injection components with a complete set of high-specification 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.
A: Each injector has a unique flow correction code (IMA/QR 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.
A: We have our own 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.
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.
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.