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Fuel System Injection 0445120103 4937700 Common Rail Injector OEM New for Cu-mmins 5.9L Diesel Engine Parts
| MOQ: | 1 pieces |
| Price: | US $53-59 / pieces |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
| Product Name | High Quality Common Rail Diesel Fuel Injector |
| Place of Origin | Wuhan,China |
| Warranty | 3 Months |
| Delivery time | 3-15 Days, subject to the order quantity |
| Quality | 100% Tested |
| Packing | Customer Requirement |
| Service | After-Sales Service |
| Size | Standard Size |
| Payment | TT,Trade Assurance,PayPal,Credit Card |
| Advantage | Perfect Fit |
This high-pressure electronically controlled common rail injection valve (standard part number: 0445120103, common OEM corresponding part numbers include 0986435558, 612600080934, 612600080618, etc.) is precision-manufactured for medium and heavy-duty commercial trucks and construction machinery diesel engines (such as WP10 and WP12 series heavy-duty diesel engines). As the core control and execution component of the high-pressure common rail system, it is responsible for precisely metering and atomizing thousands of bar of high-pressure diesel fuel at the microsecond level, significantly improving fuel mixing efficiency and combustion quality.
The product adheres to the manufacturing concept of "ultra-fine particle atomization and high-frequency ultra-fast response." The internal components, needle valve and electromagnetic response valve core, are made of special wear-resistant alloy steel, and undergo micron-level precision gradation grinding and surface hardening coating treatment, effectively preventing early erosion caused by impurities in inferior diesel fuel. After the equipment is installed and refitted, drivers and machine operators will experience a noticeable upgrade: cold starts are quick and smooth, and vibrations and abnormal noises during idling are completely eliminated; under full-load climbing or high-intensity continuous digging conditions, throttle control is tight and smooth, power output is abundant and consistent, and exhaust black smoke is significantly reduced, resulting in satisfactory fuel economy.
Advantages: Integrated intelligent manufacturing supply chain from the source factory.
Problems Solved: Addresses the issues of excessive tolerances in parts, uneven fuel supply to cylinders, and high-pressure leakage risks that are easily caused by the complex processes of traditional OEM and multi-level procurement, while avoiding the increased procurement costs from intermediate links.
Value Brought: Relying on standardized self-built production bases 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: Addresses common issues in low-end fuel injectors such as poor atomization, incomplete combustion due to sluggish solenoid valve response, engine misfires and vibrations, and wasted time and additional 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: Addresses the significant downtime and contract default risks resulting from fuel system failures and breakdowns of commercial vehicles and engineering equipment due to lack of materials.
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 greatly shortens the logistics and delivery cycle, 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.
| Parameter Name | Parameter Value |
|---|---|
| Product Name | Heavy-Duty Diesel Engine High-Pressure Electronic Common Rail Injector |
| Standard OE Part Number | 0445120103 |
| Common Interchange Numbers | 0986435558 / 612600080934 / 612600080618 |
| Applicable Engine Models | WP10 / WP12 Series Heavy-Duty 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 |
| Maximum Working Pressure | ≥ 1800 bar |
| Operating Temperature Range | -40°C to +125°C |
| Internal Sealing Components | Original Equipment Manufacturer (OEM) High-Temperature Resistant and Swell-Resistant Special Fluororubber (FKM O-Rings) |
| Net Weight per Unit | Approx. 0.86 kg / piece |
| Testing Standards | 100% Automated Bench Flow and Pressure Testing |
Cross-Regional Heavy-Duty Transportation and Mountainous Steep Slope Cruise Conditions:
Heavy-duty semi-trailer trucks fully loaded with cargo travel for extended periods on inter-provincial highways, 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, replacing the original aging parts and installing this high-precision fuel injector is recommended. 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 during long-distance transportation.
Continuous operation scenarios in open-pit mines and 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 equipment experiences severe idling vibration, difficulty starting, or excessive emissions, on-site maintenance personnel promptly replace the entire set of high-quality fuel injectors. Precise injection control ensures stable output even under extreme conditions, preventing engine stalling or abnormal wear caused by uneven fuel supply.
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.
