| OE No. | 4025281 |
| Type | Fuel Injector Pump |
| Car Make | Diesel Car |
| Packing | Neutral Packing or Customize Packing |
| Warranty | 1 Year |
| MOQ | 1PC |
PRODUCTS DETAILS
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Common Rail Diesel Fuel Injector Assembly 4025281 for Cu-mmins Engine Qst30
| MOQ: | 1 pieces |
| Price: | US $49-69 / pieces |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
Detail Information
Place of Origin
China
Brand Name
hardsench
Model Number
4025281
Model NO.:
4025281
Fuel:
Diesel
Body Material:
Steel
Component:
Fuel Injection Device
Stroke:
6 Stroke
Cylinder:
Multi-cylinder
Condition:
New
Selling Units:
Single Item
Universalfitment:
Yes
Single Package Size:
36X16X6cm
Material:
Steel
Purpose:
For Replace/Repair
Engine Code:
4025281
Oeno.:
4025281
MOQ:
1PC
Fuel Type:
Diesel
Neutral Packing Or Customize:
Packing Packing
Type:
Fuel Injector Pump
Oeno:
4025281
Single Gross Weight:
2.000 Kg
Trademark:
Hardsench
Origin:
Hubei, China
HS Code:
8409991000
Production Capacity:
5000piece
Product Description
Product Description
Packaging & Shipping
Company Information
<Product Description>
This high-pressure electronically controlled injection valve (standard part code: 4025281, common cross-references and interchangeable numbers include 4025281PX, 4088665, 4902827, etc.) is specifically designed for heavy-duty, large-displacement diesel power platforms (such as ISX15 and QSX15 series engines). As a core actuator in the fuel supply and combustion control system, it bears the crucial responsibility of precisely metering and atomizing high-pressure diesel fuel at the microsecond level. It is widely used in long-haul transport tractors, large engineering dump trucks, and generator sets.
Adhering to the technical specifications of "high-pressure particle refinement and microsecond-level precise control," the core needle valve assembly and armature valve core are made of special high-hardness alloy steel, precision ground at the micron level and polished with low friction. The surface is covered with a high-density anti-coking hardening coating, which can easily cope with early particulate wear caused by fluctuations in diesel quality. After the parts replacement is completed, drivers and machine operators will experience a noticeable improvement in operation: engine ignition and start-up are crisp and clean, and the severe vibrations and irregular shaking at low-speed idling are instantly eliminated; when climbing hills under full load or operating continuously under high load, the accelerator pedal response is tight and smooth, the power is continuous and abundant, and the black smoke from the exhaust is significantly reduced, resulting in excellent overall fuel consumption control.
<Product Description>
<Product Advantages>
Advantages: Integrated intelligent manufacturing supply chain from the source factory.
Problems Solved: Traditional multi-level procurement models are complex and prone to problems such as excessive tolerance accumulation in parts, uneven fuel supply to cylinders, and high-pressure leakage, while also significantly increasing procurement costs.
Value Gained: Relying on a self-built standardized production base to implement precision manufacturing throughout the entire process, eliminating layers of intermediaries and ensuring consistent injection height in each cylinder, significantly reducing maintenance costs while providing a solid and reliable power guarantee for the long-term operation of the equipment.
Advantages: Full-condition ultra-high pressure dynamic micron-level bench inspection.
Problems Solved: Addressing common issues with inferior, low-end parts, such as atomization angle deviation, sluggish solenoid valve response leading to incomplete combustion, engine misfires, idling vibrations, and wasted time and extra costs associated with secondary disassembly and adjustment.
Value Brought: Each injector undergoes fully automated digital testing before leaving the factory. Under simulated high-temperature and ultra-high-pressure conditions, the injection volume and return oil sealing across different pressure ranges are precisely calibrated, ensuring immediate usability upon installation and significantly reducing time and costs associated with equipment disassembly and adjustment.
Advantages: Large-scale warehousing and readily available stock for rapid delivery response.
Problems Solved: Commercial vehicles and construction machinery are high-upload, high-revenue tools. If they become stranded due to fuel system failures, downtime and lack of materials can result in costly delay compensation and lost work time.
Value Brought: The warehousing center maintains a sufficient stock of best-selling specifications year-round. After order confirmation, a rapid response and priority packing and dispatch within 24-48 hours significantly shorten logistics and delivery cycles, helping fleets and owners quickly restore equipment operational readiness and effectively avoiding downtime losses.
Advantages: Nanoscale DLC coating and special wear-resistant alloy valve assembly.
Problems Solved: Addresses issues such as premature wear of valve components, needle valve jamming, and excessive return oil caused by variations in diesel lubricity and particulate impurities in different regions.
Value Brought: The core valve assembly components utilize high-strength special bearing steel and undergo 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 Table>
| Parameter Name | Parameter Value |
|---|---|
| Product Name | Heavy-Duty Diesel Engine High-Pressure Electronic Common Rail Injector |
| Standard OE Part Number | 4025281 |
| Interchangeable Part Number | 4025281PX / 4088665 / 4902827 |
| Applicable Engine Models | ISX15 / QSX15 Series Heavy-Duty Diesel Engines |
| Fuel System Type | High-Pressure Electronic Common Rail/Unit Injection System |
| Core Needle Valve 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 |
| Injection Orifice Micro-Engraving Technology | EDM High-Precision Electrical Discharge Micro-Orifice Machining |
| Maximum Working Pressure | ≥ 1800 bar |
| Working Temperature Range | -40°C to +125°C |
| Sealing Component Material | Original factory-grade high-temperature resistant and swelling-resistant special fluororubber (FKM O-Rings) |
| Net Weight per Unit | Approx. 0.91 kg / piece |
| Factory Testing Standard | 100% automated full-condition bench flow and sealing tests |
| </Parameter Table> | |
<Application Scenarios>
Intercity trunk line heavy-duty transportation and mountain steep slope cruising: Heavy-duty trucks fully loaded with goods travel for long periods on cross-regional logistics routes, requiring the engine to continuously output high torque. When drivers notice a decrease in vehicle start-up smoothness, weak acceleration when climbing hills, or abnormally increased fuel consumption, they replace worn parts and install this high-precision fuel injector. After installation, the high-pressure diesel atomization effect is significantly improved, the throttle response is more abundant, effectively reducing overall fuel consumption costs and ensuring high efficiency and stability in long-distance transportation.
Open-pit mining and large-scale construction machinery continuous operation scenarios: Large-scale 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 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 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.
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