|
Unit Injector 570016 579251 579261 4954648 1764364 579261 Diesel Fuel Injector for Scala HPL Engine
| MOQ: | 1 pieces |
| Price: | US $265.32-285.32 |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
| OE No. | 579251 |
| Type | Fuel Injector |
| Car Make | Diesel Car |
| Packing | Neutral Packing or Customize Packing |
| Warranty | 1 Year |
| MOQ | 1PC |
Product Description
This high-pressure common rail fuel injection assembly (standard part code: 579251, common OE cross-reference and interchangeable identification numbers include 0579251, 579251PX, 0445120304, 5263307, etc.) is precision-manufactured for heavy-duty trucks, long-haul logistics vehicles, and high-power diesel power platforms (such as ISDE and ISBE series 6.7L inline six-cylinder diesel engines, commonly installed in medium and heavy-duty long-haul freight trucks, urban logistics engineering vehicles, and medium-sized buses). As the micro-metering and injection execution unit of the high-pressure common rail fuel supply system, it is responsible for rapidly metering and atomizing diesel fuel into nano-sized ultra-fine atomized particles within milliseconds, promoting complete and uniform mixing of fuel and air, and releasing strong and stable power output.
The product adheres to the industrial design principles of "microscopic ultra-fine atomization and millisecond-level ultra-fast response." The internal needle valve assembly and armature control valve core are made from carefully selected quenched special alloy steel, combined with ultra-high precision geometric grinding and low-friction polishing processes. The surface is covered with a high-density, anti-coking hardened coating, effectively preventing early erosion caused by diesel impurities. After replacement and installation, equipment operators and on-site maintenance personnel will experience a very clear performance improvement: engine starts crisply and cleanly, and the severe vibrations and jerks at low-speed idling are stabilized; under full-load tunneling, steep slope climbing, or high-intensity continuous operation conditions, the control lever and throttle are tight and smooth, acceleration is rapid and powerful, and black smoke emissions are significantly reduced, resulting in excellent overall fuel economy control.
Product Advantages
Advantages: Direct sales from the source factory and integrated automated production line.
Problems Solved: Addressing the issues of excessive tolerances, uneven fuel supply, and high-pressure leakage risks caused by traditional resale by intermediaries or multi-layered OEM manufacturing, while significantly increasing procurement costs.
Value Brought: Utilizing a self-operated standardized factory for precision manufacturing throughout the entire process eliminates intermediary markups, ensuring consistent injection height across all cylinders. This reduces maintenance costs and provides a robust and reliable power guarantee for long-term equipment operation.
Advantages: 100% rigorous quality inspection using a full-condition digital bench.
Problems Solved: Addressing quality issues such as delayed solenoid valve response, internal pressure leakage, and needle valve jamming that easily occur with low-quality parts, leading to unstable power output after installation and wasted time and money on repeated disassembly and debugging.
Value Brought: Each injector undergoes fully automated testing before leaving the factory. Under fully simulated high-temperature and ultra-high-pressure conditions, the injection volume and return oil sealing are precisely calibrated for different pressure ranges, ensuring immediate usability after installation and greatly saving time and costs associated with equipment disassembly and debugging.
Advantages: Large-scale warehousing and rapid dispatch of readily available stock.
Problem Solved: Commercial vehicles and construction machinery are high-upload, high-revenue tools. If they become stranded due to fuel system failure, the resulting downtime and lack of materials will incur costly delays, compensation, and lost work time.
Value Brought: Our warehousing center maintains a large inventory of best-selling specifications year-round. After order confirmation, we respond quickly and prioritize packing and shipping within 24-48 hours, significantly shortening the logistics and delivery cycle. This helps fleets and owners quickly restore equipment availability and effectively avoids downtime losses.
Advantages: Special hardened alloy wear-resistant and corrosion-resistant material.
Problem 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 are made of high-strength special bearing steel with a surface anti-corrosion hardening treatment, significantly improving fatigue resistance and wear resistance. Even under harsh environments and prolonged high-load operation, they maintain stable performance, avoiding the additional costs of frequent disassembly and repairs.
Parameter Table
| Parameter Name | Parameter Value |
|---|---|
| Product Name | Heavy-Duty Diesel Engine High-Pressure Electronic Common Rail Injector |
| Standard OE Part Number | 579251 |
| Interchangeable Part Number | 0579251 / 579251PX / 0445120304 / 5263307 |
| Applicable Engine Platform | ISDE / ISBE Series 6.7L Diesel Engine |
| Fuel Supply System | High-Pressure Electronic Common Rail System |
| Core Needle Valve Material | Aerospace-grade hardened bearing steel, corrosion-resistant high-hardness special alloy steel |
| Surface Treatment Process | High-Density, Ultra-Wear-Resistant DLC Hardened Coating |
| Nozzle Machining Technology | EDM High-Precision Electrical Discharge Micro-Needle Machining |
| Maximum Working Pressure | ≥ 1800 bar |
| Working Temperature Range | -40°C to +125°C |
| Internal Sealing Components | Original Equipment Manufacturer (OEM) High-Temperature Resistant and Anti-Swelling Special Fluororubber (FKM O-Rings) |
| Net Weight per Unit | Approx. 0.85 kg / piece |
| Factory Testing Standards | 100% Automated Full-Condition Bench Flow and Sealing Tests |
Application Scenarios
Long-haul logistics and highway transportation: Heavy-duty trucks travel fully loaded for extended periods on inter-provincial highways and urban trunk lines, placing extremely high demands on engine fuel supply stability and fuel control. When drivers experience sluggish acceleration for overtaking, insufficient power when climbing hills in high gears, or frequent black smoke from the exhaust pipe, the maintenance team promptly replaces the fuel 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.
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.
