Diesel Fuel Injector 28384645 A6720170021 for Ssangyong 2.2 Xdi

This model of high-pressure electronically controlled common rail nozzle valve body component (standard part number: A6720170021 / 6720170021, common OE cross-reference and interchangeable identification numbers include 28236381, 28231014, A6710170121, etc., mainly compatible with D20DTF, D20DTR, D22DTR and other 2.0D / 2.2D series high-pressure common rail diesel power platforms, widely installed in rugged SUVs, pickup trucks and commercial passenger and freight vehicles) is meticulously crafted. As the key metering and ultra-fine spray execution 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, promoting comprehensive and uniform mixing of fuel and intake airflow, and achieving efficient and complete combustion.

The product adheres to a design protocol of "high-pressure resistant particle refinement and microsecond/ultrasecond response." Internal needle valve components and armature 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 covered with a high-density, anti-coking hardened coating, effectively preventing early erosion caused by diesel impurities. After the parts are installed, mechanics and equipment operators will experience a significant performance improvement: crisp and rapid starting, with severe vibrations and shaking at low idling speeds completely eliminated; under full-load high-speed cruising, steep incline, or heavy-load off-road 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.

• Advantages: Integrated precision manufacturing in a physical intelligent 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 volumes 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, which are common with low-end parts.

  Value Gained: Each injector undergoes automated testing on a test bench before leaving the factory. Flow rate and sealing performance are calibrated 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.

  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 responded to quickly, with priority packing and shipping 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.

  Problem Solved: Addressing the issue of premature wear and valve core seizure caused by variations in diesel lubricity and sulfur content across 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. This ensures stable performance even under harsh environments and prolonged high-load operation, avoiding the additional costs associated with frequent disassembly and repairs.

Outdoor Off-Road and Heavy-Duty Pickup Truck Conditions: Hardcore off-road vehicles and commercial pickup trucks often operate in complex road conditions, muddy mountain roads, and fully loaded transport, placing extremely high demands on the engine's low-speed, high-torque response. When drivers find that the vehicle accelerates weakly, has insufficient power when climbing hills, or emits excessive black smoke from the exhaust pipe, maintenance personnel should promptly replace the fuel injector with this high-precision common rail injector. After replacement, the throttle response is smooth and tight, the power reserve is ample, and the combined fuel consumption per 100 kilometers is significantly reduced.

Business passenger transport and high-frequency urban transportation scenarios for light trucks: Multi-functional commercial vehicles and urban express vans are frequently on high-frequency, requiring the engine to continuously provide stable high torque output in the low-speed range. When vehicles experience starting difficulties, severe idling vibrations, or frequent misfires, the maintenance team replaces the entire set of high-specification fuel injection valve assemblies. Microsecond-level precise injection allows the engine to instantly release high torque at low speeds, smoothly handling frequent start-stop cycles and heavy loads, ensuring continuous and efficient transportation operations.