| OE No. | 4928347 |
| Type | Fuel Injector |
| Car Make | Diesel Car |
| Packing | Neutral Packing or Customize Packing |
| Warranty | 1 Year |
| MOQ | 1PC |
| MOQ: | 1 pieces |
| Price: | US $305.32-325.32 |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
| OE No. | 4928347 |
| Type | Fuel Injector |
| Car Make | Diesel Car |
| Packing | Neutral Packing or Customize Packing |
| Warranty | 1 Year |
| MOQ | 1PC |
Product Description
This high-pressure electronically controlled common rail nozzle device (standard part number: 4928347, common interchangeable parts include 4928347PX, 4088665, 4902827, etc.) is precision-engineered for heavy-duty trucks, large-tonnage engineering equipment, and large-displacement diesel power platforms (such as ISX15 and QSX15 series high-power engines). As a micro-precision actuator in the high-pressure fuel supply and combustion control system, it is responsible for rapidly metering and dispersing high-pressure diesel fuel into nano-sized ultrafine particles within milliseconds, promoting comprehensive and uniform mixing of fuel and air to achieve abundant and stable power release.
The product adheres to the technical manufacturing specifications of "ultra-fine particle high-pressure injection and millisecond-level ultra-fast response." The internal needle valve assembly and armature control valve core are made of aerospace-grade quenched special alloy steel, combined with ultra-high precision geometric grinding and ultra-low friction polishing processes. The surface is covered with a high-density anti-coking hardened coating, which effectively prevents early erosion caused by diesel impurities. After the replacement parts are installed, drivers and machine operators experience immediate improvements in operation: acceleration is quick and crisp, and the severe vibrations and jerks at low idle speeds subside; when climbing steep slopes fully loaded or during high-intensity continuous tunneling operations, the accelerator pedal provides smooth and precise feedback, resulting in rapid acceleration and continuous power, while significantly reducing black smoke emissions and delivering excellent overall fuel economy.
Product Advantages
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 significantly increasing procurement costs.
Value Brought: Relying on a self-built standardized production plant for precision manufacturing throughout the entire process eliminates layers of intermediaries, ensuring consistent injection height across cylinders. This significantly reduces 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 testing.
Problems Solved: Addresses common issues in low-end components such as injection atomization deviation, incomplete combustion due to sluggish solenoid valve response, engine misfires, idling 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 fully simulated high-temperature and ultra-high-pressure conditions, the injection volume and return oil sealing performance 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 with readily available stock and rapid delivery response.
Problems Solved: Commercial vehicles and construction machinery are high-upload, high-revenue tools. If they become disabled due to fuel system failure, downtime and lack of materials can result in costly delay compensation and lost work time.
Value Brought: The warehousing center maintains ample stock of best-selling specifications year-round, enabling rapid response after order confirmation and priority packing and dispatch within 24-48 hours. This significantly shortens the logistics and delivery cycle, helping fleets and owners quickly restore equipment availability and effectively avoiding downtime losses.
Advantages: Nano-level DLC coating and special wear-resistant alloy valve pairs.
Problems Solved: Addresses issues such as premature wear of valve pairs, needle valve jamming, and excessive oil return caused by differences in diesel lubrication and particulate impurities in different regions.
Value Brought: Core valve pair components utilize high-strength special bearing steel and surface anti-corrosion hardening treatment, significantly improving fatigue resistance and wear resistance. Even under harsh environments and prolonged high-load operation, it maintains stable performance, avoiding the additional costs of frequent disassembly and repair.
Parameter Table
| Parameter Name | Parameter Value |
|---|---|
| Product Name | Heavy-Duty Diesel Engine High-Pressure Electronic Common Rail Injector |
| Standard OE Part Number | 4928347 |
| Interchangeable Part Number | 4928347PX / 4088665 / 4902827 |
| Applicable Engine Models | ISX15 / QSX15 Series Heavy-Duty Diesel Engines |
| Fuel Supply System | 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 |
| 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. 0.91 kg / piece |
| Factory Testing Standards | 100% Automated Full-Condition Bench Flow and Sealing Tests |
Application Scenarios
Long-Distance Heavy-Duty Logistics Transportation Scenarios: Large semi-trailer tractors fully loaded with heavy cargo travel at high speeds for extended periods on inter-provincial trunk lines, requiring the engine to continuously withstand high load pressure. When drivers notice the vehicle's inability to climb hills, abnormally high fuel consumption, or black smoke, they replace the original aging parts and install this high-precision fuel injector. After installation, the engine's fuel 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 Continuous Operation of 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 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.