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Common Rail Diesel Fuel Injector 4903475 for Cu-mmins Diesel Engine Qsn14 N14 4307525
| MOQ: | 1 pieces |
| Price: | US $190.32-205.32 |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
| OE No. | 4307525 |
| Type | Fuel Injector |
| Car Make | Diesel Car |
| Packing | Neutral Packing or Customize Packing |
| Warranty | 1 Year |
| MOQ | 1PC |
<Product Description> This high-precision diesel electronic high-pressure injection assembly (standard part number: 4307525, common interchangeable/cross-part numbers include 4307525PX, 4088665, 4902827, etc.) is specifically designed for heavy-duty diesel power systems (such as ISX15 and QSX15 series large-displacement engines). It is the core control component for achieving precise fuel metering and ultra-high pressure fine injection. The product is widely applicable to heavy-duty trucks in long-haul logistics, large-tonnage engineering dump trucks, special construction machinery, and high-load standby diesel generator sets.
The product adheres to the design and manufacturing standards of "high-pressure fine particle refinement and microsecond-level precise control." The internal needle valve assembly and control valve core undergo micron-level geometric matching grinding, and the surface is covered with a high-density anti-coking hardening coating, easily coping with the abrasion caused by impurities in inferior diesel fuel. After the equipment upgrade, drivers and operators will experience a noticeable improvement in performance: ignition and starting are clean and crisp, and the severe vibrations at low idle speeds are completely eliminated; during full-load climbing or continuous heavy-load operation, the throttle and control lever responses are crisp and linear, power output is continuous, solid, and stable, black smoke emissions are significantly reduced, resulting in excellent overall fuel economy control.
Problems Solved: Addresses the issues of complex traditional OEM procurement processes, which can lead to dimensional discrepancies in parts, uneven fuel supply to cylinders, and high-pressure leakage.
Value Brought: Utilizing a standardized self-built production base for end-to-end precision manufacturing eliminates intermediaries and ensures consistent injection height across cylinders. This reduces maintenance costs and provides a reliable power guarantee for long-term equipment operation.
Problems Solved: Addressing quality issues such as delayed solenoid valve response, internal pressure leakage, and needle valve jamming common with low-quality parts, leading to unstable power 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 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 significantly saving time and costs associated with equipment disassembly and debugging.
Problems Solved: Addressing the costly delays and lost work time caused by fuel system failures affecting commercial vehicles and construction machinery, resulting in downtime and material shortages.
Value Brought: The warehousing center maintains a sufficient stock of best-selling specifications year-round. Orders are responded to quickly, with priority 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.
Problem Solved: Addressing the issue of premature wear and valve core seizure caused by variations in diesel lubricity and sulfur content across different regions.
Benefits: The core valve assembly utilizes high-strength special bearing steel and undergoes a surface anti-corrosion hardening treatment, significantly improving fatigue resistance and wear resistance. It maintains stable performance even under harsh environments and prolonged high-load operation, avoiding the additional costs associated with frequent disassembly and repairs.
</Product Advantages>
| Parameter Name | Parameter Value |
|---|---|
| Product Name | Heavy-Duty Diesel Engine High-Pressure Electronic Common Rail Injector |
| Standard OE Part Number | 4307525 |
| Common Interchange Numbers | 4307525PX / 4088665 / 4902827 |
| Applicable Engine Models | ISX15 / QSX15 Series Heavy-Duty Diesel Engines |
| Fuel Supply System | High-Pressure Electronic Common Rail/Unit Injection System |
| Core Valve Core Material | Aerospace-Grade Quenched Bearing Steel, Corrosion-Resistant High-Hardness Special Alloy Steel |
| Needle Valve Coating Process | High-Density, Ultra-Wear-Resistant DLC Hardened Coating |
| Nozzle Machining Technology | EDM High-Precision Electrical Discharge Micro-Needle Machining |
| Operating 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. 0.92 kg / piece |
| Testing Standard | 100% Automated Bench Flow and Pressure Testing |
</Parameter Table>
Long-distance heavy-duty logistics transportation and mountain steep slope climbing scenarios: Large semi-trailer tractors operate for extended periods on inter-provincial trunk lines, requiring the engine to continuously withstand high load pressure. When drivers notice the vehicle's inability to climb hills, abnormally high fuel consumption, or black smoke, they replace the original aging parts and install this high-precision fuel injector. After installation, the engine's fuel atomization effect is significantly improved, throttle response is more robust, effectively reducing overall fuel consumption and ensuring high efficiency and stability in long-distance transportation.
Mining and continuous operation scenarios for large construction machinery: Large construction dump trucks and excavators operate continuously in high-dust, high-load environments, placing extremely high demands on the stability of the fuel supply system. When the equipment exhibits severe idling vibration, difficulty starting, or excessive emissions, on-site maintenance personnel promptly replace the entire set of high-quality injectors. Precise injection control ensures stable output even under extreme operating conditions, preventing engine stalling or abnormal wear caused by uneven fuel supply.
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.
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 suchs 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.
