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Diesel Fuel Injector Nozzle 0432191410/4025280 for Qst30 Engine
| MOQ: | 1 pieces |
| Price: | US $38.32-46.32 / p |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
| OE No. | 4025280 |
| Type | Fuel Injector |
| Car Make | Diesel Car |
| Packing | Neutral Packing or Customize Packing |
| Warranty | 1 Year |
| MOQ | 1PC |
This high-pressure electronic fuel injection assembly (standard product number: 4025280, common interchangeable and cross-reference numbers include 4025280PX, 4088665, 4902827, etc.) is specifically designed for heavy-duty, large-displacement diesel power platforms (such as the ISX15 and QSX15 series engines). As the core actuator for precise control of the high-pressure fuel system, it is responsible for precisely metering and micron-level atomization of diesel fuel in an extremely short time, ensuring perfect mixing of fuel and high-pressure air to release abundant and stable output power.
Adhering to the design concept of "ultra-micro atomization and ultra-fast response," the internal valve needle assembly and electromagnetic response valve core are made of aerospace-grade special alloy steel, and the surface is treated with low-friction polishing and a dense hardened coating, which can effectively resist early erosion caused by impurities in inferior diesel fuel. After the equipment is installed and replaced, drivers can experience a noticeable improvement in handling: acceleration is quick and crisp, and the severe vibrations and flat-frequency shaking at idle are smoothed out; under heavy loads climbing steep slopes or high-intensity continuous operation, the accelerator pedal feedback is crisp and refined, providing continuous power while significantly reducing black smoke emissions and resulting in excellent overall fuel economy.
Advantages: Integrated precision manufacturing at a self-operated production base.
Problems Solved: Traditional OEM and multi-level procurement models involve complex processes that easily lead to excessive tolerances in parts, uneven fuel supply to cylinders, and high-pressure leaks, while also increasing procurement costs.
Value Brought: Relying on a self-built standardized production base for end-to-end precision manufacturing eliminates layers of intermediaries, ensuring consistent injection height across cylinders. This reduces maintenance costs and provides a solid and reliable power guarantee for long-term equipment operation.
Advantages: Full-condition ultra-high pressure dynamic micron-level bench inspection.
Problems Solved: Addressing common issues with low-quality parts, such as injection atomization deviation, incomplete combustion due to sluggish solenoid valve response, engine misfires, idling vibrations, and wasted time and extra costs associated with secondary disassembly and adjustment.
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 across different pressure ranges, ensuring immediate usability upon installation and significantly reducing time and costs associated with equipment disassembly and adjustment.
Advantages: Large-scale warehousing with readily available stock for rapid delivery.
Problems Solved: Commercial vehicles and construction machinery are high-upload, high-revenue tools. Downtime due to fuel system malfunctions can result in costly delays, compensation claims, and lost work time.
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 logistics and delivery cycles. This helps fleets and owners quickly restore equipment availability and effectively avoids downtime losses.
Advantages: Special bearing steel and nano-level anti-corrosion hardening coating.
Problems Solved: Addresses issues such as premature wear of valve components, needle valve jamming, and excessive oil return caused by variations in diesel lubrication and particulate impurities in different regions.
Value Brought: The 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 High-Pressure Electronic Common Rail Injector |
| Standard OE Part Number | 4025280 |
| Interchangeable Part Number | 4025280PX / 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 Surface Treatment | 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. 0.91 kg / piece |
| Testing Standards | 100% Automated Bench Flow and Pressure Testing |
Cross-Regional Trunk Line Heavy-Duty Transportation and Mountainous Steep Slope Cruise Conditions: Heavy-duty semi-trailer trucks fully loaded with cargo travel for extended periods on cross-provincial trunk lines, requiring the engine to continuously output high torque. When drivers notice a decrease in vehicle start-up smoothness, weak acceleration uphill, or abnormally increased fuel consumption, they can replace the original aging parts and install this high-precision fuel injector. After installation, the high-pressure diesel 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.
Open-Pit Mining Loading and Unloading and Large Construction Machinery Continuous Operation Scenarios: 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.
**Application Scenarios**
Q: Can I use the product directly after installation? Is a correction code required?
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, 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 the product before it leaves the factory?
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.
Q: How long is the warranty period? What are the after-sales service details?
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.
