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Common Rail Injector Fuel Injection 21644600 Bebe4d11001 Bebe4d11101 Bebe4d11201 Bebe4d36001 for MD93503
| MOQ: | 1 |
| Price: | US $171 |
| Payment Method: | L/C,D/A,D/P,T/T |
| 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 |
This high-pressure electronically controlled common rail nozzle valve body assembly (standard part number: 21644600; common OE cross-reference and interchangeable identification numbers include 21644600P01, 21340611, 21028629, 85003963, 20708600, etc.) is precision-manufactured for high-power heavy-duty diesel power platforms (such as D11 and D13 series 10.8L/12.8L displacement inline six-cylinder diesel engines, commonly installed in FH and FM series heavy-duty trucks, highway tractors, and engineering heavy-duty vehicles). As the core metering and micro-atomization actuator of the high-pressure common rail supply system, it is responsible for accurately metering high-pressure diesel fuel and rapidly dispersing it into ultra-fine atomized particles under microsecond-level electronic control commands, promoting highly uniform mixing of fuel and intake air for complete combustion.
The product adheres to a design protocol of "micron-level high-pressure atomization and millisecond-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, ultra-wear-resistant DLC hardened coating, effectively preventing early erosion and jamming caused by diesel impurities. After the parts are installed, mechanics and equipment operators will experience a clear and intuitive improvement: ignition starts crisply and quickly, and the severe vibration at low-speed idling is completely eliminated; under heavy-load starts, full-load uphill climbing, or high-speed overtaking 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 efficiency control and a smooth driving experience.
Advantages: Integrated precision manufacturing and research in a physical factory.
Problems Solved: Addresses issues arising from traditional OEM and multi-level distribution chains, such as accumulated tolerance issues in parts matching, uneven fuel supply to cylinders, and potential high-pressure leaks, while effectively reducing intermediate procurement costs.
Value Gained: Leveraging a self-operated standardized production base for precise end-to-end control, eliminating intermediate markups, and ensuring highly consistent fuel injection volume across cylinders. This reduces maintenance budgets while providing robust and reliable power for vehicle and equipment 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 associated with low-end parts.
Value Gained: Each injector undergoes fully automated digital testing before leaving the factory. Under simulated high-temperature and ultra-high-pressure conditions, the fuel injection volume and sealing performance across different pressure ranges are precisely calibrated, 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 delivery response.
Problem Solved: Addressing the costly delays and lost work due to fuel system malfunctions causing breakdowns and shutdowns for high-upload productivity tools like construction machinery and commercial vehicles.
Value Brought: Our warehousing center maintains ample stock of best-selling specifications year-round. Orders are processed quickly, with packaging and dispatch 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 hardened alloys and ultra-wear-resistant hardened coatings.
Problem Solved: Addressing the issue of premature wear and valve core seizure caused by variations in diesel lubricity and sulfur content in different regions.
Value Brought: Core valve components utilize high-strength special bearing steel and a surface anti-corrosion hardening treatment, significantly improving fatigue resistance and wear resistance. This ensures stable performance even under harsh environments and prolonged high-load operation, avoiding the additional costs associated with frequent disassembly and repairs.
| Parameter Name | Parameter Value |
|---|---|
| Product Name | Heavy-Duty Diesel Engine Electronic High-Pressure Common Rail Injector |
| Standard OE Part Number | 21644600 |
| Interchangeable Part Number | 21644600P01 / 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 |
| Injector 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 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 |
Long-haul logistics and heavy-duty tractor-trailer inter-provincial transportation: Heavy-duty semi-trailer tractors continuously travel fully loaded on inter-provincial highways and trunk logistics routes, 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 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.
- 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.
