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0445120071 3999832 Diesel Common Rail Injector Assy for Cu-mmins Isde
| MOQ: | 1 pieces |
| Price: | US $60-70 / pieces |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
Product Description
| OE No. | 0445120071 |
| Type | Fuel Injector |
| Car Make | Diesel Car |
| Packing | Neutral Packing or Customize Packing |
| Warranty | 1 Year |
| MOQ | 1PC |
Packaging & Shipping
Company Information
Product Overview
This high-pressure electronically controlled common rail injection unit (part code: 0445120071, common OE cross-reference and interchangeable parts include 0986435529, 5263307, 5263307PX, etc.) is precision-engineered for medium and heavy-duty commercial vehicles, special engineering machinery, and diesel power platforms (such as ISF3.8 and QSF3.8 series diesel engines). As the core micro-actuator of the high-pressure common rail fuel supply and combustion control system, it plays a crucial role in accurately metering and atomizing diesel fuel into ultra-fine particles within milliseconds, ensuring thorough mixing and efficient combustion of fuel and air, and releasing stable and powerful power output.
Adhering to the manufacturing standards of "micron-level high-pressure injection and millisecond-level ultra-fast response," the internal valve needle assembly and electromagnetic control valve core are made of aerospace-grade 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, which can easily resist early erosion caused by impurities in inferior diesel fuel. After the equipment is replaced, operators and drivers will experience a noticeable improvement in operation: the engine starts crisply and cleanly, and the severe vibrations and jerks at low idling speeds are eliminated; under full load climbing or high-intensity continuous operation, throttle control is smooth and precise, power is continuous, abundant, and stable, and black smoke emissions are significantly reduced, resulting in excellent overall fuel economy.
Product Advantages
Integrated precision manufacturing at a self-operated modern production base.
Problems Solved: Traditional multi-level procurement models involve complex processes that can lead to excessive tolerances in parts, uneven fuel supply to cylinders, and high-pressure leaks, while also significantly increasing procurement costs.
Value Brought: Precision manufacturing throughout the entire process in a self-built standardized production plant eliminates layers of intermediaries, ensuring consistent injection height across cylinders. This significantly reduces maintenance costs and provides a robust and reliable power guarantee for long-term equipment operation.
Full-condition ultra-high pressure dynamic micron-level bench inspection.
Problems Solved: Addressing common issues with low-end fuel injectors, 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 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.
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.
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 Table
| Parameter Name | Parameter Value |
|---|---|
| Product Name | High-Pressure Electronic Common Rail Injector for Medium and Heavy-Duty Diesel Engines |
| Standard OE Part Number | 0445120071 |
| Interchangeable Part Number | 0986435529 / 5263307 / 5263307PX |
| Applicable Engine Models | ISF3.8 / QSF3.8 Series Diesel Engines |
| 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 |
| 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 | ≥ 1600 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. 0.80 kg / piece |
| Factory Testing Standards | 100% Automated Full-Condition Bench Flow and Sealing Tests |
Application Scenarios
Intercity Logistics Transportation and High-Frequency Cruise Operations of Medium-Duty Trucks: Medium-duty trucks and logistics trucks routinely undertake high-density intercity delivery tasks, placing extremely high demands on engine smoothness and torque response. When drivers notice weak acceleration, abnormally increased fuel consumption, or severe idling vibrations, replacing the original aging parts and installing this high-precision fuel injector ensures uniform and sufficient high-pressure diesel atomization, a smooth and tight throttle pedal response, effectively reducing overall operating costs and ensuring efficient and stable long-distance transportation.
Urban municipal engineering and special-purpose vehicle continuous operation scenarios: Special-purpose vehicles, municipal sweepers, and medium-sized excavators are frequently in a state of start-stop and heavy-load operation. When the equipment experiences difficulty starting, black smoke during acceleration, or power loss, on-site maintenance personnel promptly replace the entire set of high-quality fuel injectors. Precise injection control ensures stable output even under extreme operating conditions, preventing engine stalling or construction delays caused by uneven fuel supply.
Frequently Asked Questions
Q: Can I use the product directly after installation? Is it necessary to enter a correction code?
A: Each fuel 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.
