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0445120018 Common Rail Injector Assy 3947500 3949619 Fuel Injector for Dodge RAM 2500 3500 Cu-mmins Isbe 5.9L Diesel Engine
| MOQ: | 1 pieces |
| Price: | US $65-73 / pieces |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
| OE No. | 0445120018 |
| Type | Fuel Injector |
| Car Make | Diesel Car |
| Packing | Neutral Packing or Customize Packing |
| Warranty | 1 Year |
| MOQ | 1PC |
This high-pressure electronically controlled common rail injector assembly (standard part number: 0445120018, common OEM corresponding part numbers include 504091573, 504091573R, etc.) is meticulously crafted for heavy-duty trucks, buses, and industrial diesel power systems . As the core actuator of the high-pressure common rail fuel injection system, it bears the heavy responsibility of rapidly metering and atomizing kilobar-level high-pressure diesel fuel into ultra-fine particles. It is widely installed in long-haul logistics tractors, long-distance passenger buses, heavy-duty engineering dump trucks, and generator sets.
This product adheres to the design philosophy of "ultra-fine particle high-pressure atomization and millisecond-level response control." The internal needle valve assembly and armature valve core are both subjected to high-precision grinding and low-friction polishing, and the surface is covered with a high-density anti-coking hardening coating, which can effectively prevent early erosion caused by impurities in inferior diesel fuel. After the equipment is upgraded, drivers and operators will experience noticeable performance improvements: ignition and starting are crisp and smooth, and the severe vibrations at low idle speeds are completely eliminated; during heavy-load climbing of steep slopes or high-intensity continuous operation, the accelerator pedal response is tight and smooth, providing a continuous and abundant power supply, and significantly reducing black smoke emissions, resulting in excellent overall fuel economy control.
Advantages:
Integrated intelligent manufacturing supply chain from the source factory.
Problems Solved:
Traditional procurement models involve complex processes that easily lead to excessive tolerances in parts, uneven fuel supply to cylinders, and high-pressure leakage, while also significantly increasing procurement costs.
Value Brought:
Relying on a self-built standardized production base for end-to-end precision manufacturing, eliminating layers of intermediaries and ensuring consistent injection height across cylinders, significantly reducing maintenance costs while providing a solid and reliable power guarantee for long-term equipment operation.
Advantages:
Full-condition ultra-high pressure dynamic micron-level bench inspection.
Promotional Features - 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 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 and readily available stock for rapid delivery response.
Problems Solved:
Large commercial vehicles and construction machinery are high-uptime, 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 the logistics and delivery cycle, helping fleets and owners quickly restore equipment availability and effectively avoid 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.
| Parameter Name | Parameter Value |
|---|---|
| Product Name | Heavy-Duty Diesel Engine High-Pressure Electronic Common Rail Injector |
| Standard OE Part Number | 0445120018 |
| Common Interchange Numbers | 504091573 / 504091573R / 0986435510 |
| Applicable Engine Models | Cursor 8 / Cursor 10 Series Diesel Engines |
| Fuel Supply System | High-Pressure Electronic Common Rail System |
| Core Valve Core Material | Aerospace-grade hardened 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. 0.85 kg / piece |
| Testing Standards | 100% Automated Bench Flow and Pressure Testing |
Intercity Heavy-Duty Transportation and Mountainous Steep Slope Cruise Conditions: Heavy-duty trucks fully loaded with goods travel for extended 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 uphill, 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, throttle response is more robust, effectively reducing overall fuel consumption and ensuring high efficiency and stability in long-distance transportation.
Open-Pit Mining 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.
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.
