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DC12 Diesel Engine Common Rail Fuel Injector 4076965 4076912 1521978 4902818
| MOQ: | 1 pieces |
| Price: | US $265.32-285.32 |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
| OE No. | 4076965 |
| Type | Fuel Injector |
| Car Make | Diesel Car |
| Packing | Neutral Packing or Customize Packing |
| Warranty | 1 Year |
| MOQ | 1PC |
This high-pressure electronic fuel injection assembly (standard part code: 4076965, common interchangeable part numbers include 4076965PX, 4076965NX, 4088665, 4902827, etc.) is meticulously crafted for heavy-duty transport trucks, large-tonnage engineering equipment, and large-displacement diesel power platforms (such as the ISX15 and QSX15 series high-power diesel engines). As the core control and execution unit of the high-pressure fuel supply and combustion control system, it is responsible for the precise metering and ultra-fine particle atomization of high-pressure diesel fuel within microseconds, ensuring complete mixing and efficient combustion of fuel and air within the cylinder, releasing strong and stable torque output.
Adhering to the design concept of "high-pressure particle refinement and microsecond-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 effectively resist early erosion caused by diesel impurities. After installation and replacement, drivers and machine operators will experience a noticeable improvement in operation: cold ignition starts are crisp and clean, and the severe vibrations and jerks at low idling speeds are completely eliminated; under full load climbing or continuous high-load operation, throttle control is smooth and precise, acceleration is rapid and power is continuous, while significantly reducing exhaust smoke and resulting in excellent overall fuel economy.
Advantages: Integrated intelligent manufacturing in a self-operated automated factory.
Problems Solved: Addresses issues easily caused by traditional multi-layered OEM and reseller trade, such as excessive tolerances in component fit, uneven fuel supply to cylinders, and high-pressure leakage risks, while also significantly increasing procurement costs.
Value Brought: Relying on standardized self-built production facilities for precision manufacturing throughout the entire process eliminates layers of intermediaries, ensuring consistent injection height in each cylinder, reducing maintenance costs, and providing a solid and reliable power guarantee for long-term equipment operation.
Advantages: 100% fully simulated digital bench rigorous quality inspection.
Problems Solved: Addressing quality issues such as delayed solenoid valve response, internal pressure leakage, and needle valve jamming common with low-quality parts, leading to unstable power after installation and wasted time and money on repeated disassembly and debugging.
Value Brought: Each injector undergoes fully automated testing before leaving the factory. Under simulated high temperature and ultra-high pressure conditions, the injection volume and return oil sealing are precisely calibrated for different pressure ranges, ensuring immediate usability after installation and significantly saving time and costs associated with equipment disassembly and debugging.
Advantages: A large, readily available inventory and rapid warehousing and distribution.
Problems Solved: Addressing the costly delays and lost work time caused by fuel system failures affecting commercial vehicles and construction machinery, resulting in downtime and material shortages.
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 the logistics and delivery cycle. This helps fleets and owners quickly restore equipment availability and effectively avoids downtime losses.
Advantages: Nanoscale DLC coating and special wear-resistant alloy valve assembly.
Problems Solved: Addresses the issue of premature wear and valve core seizure caused by differences in diesel lubricity and sulfur content across 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 | 4076965 |
| Interchangeable Part Number | 4076965PX / 4076965NX / 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 |
Heavy-Duty Long-Haul Logistics Transportation and Mountainous Steep Slope Climbing: Large semi-trailer tractors fully loaded with heavy cargo travel at high speeds for extended periods on inter-provincial highways, 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.
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 suchs 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.
