Diesel Unit 4076912 Common Rail Diesel Injector for 4-Series DC12 Dt12 Hpi

<Product Description> This industrial-grade electronically controlled high-pressure common rail injector (OE part number: 4076912) is a precision fuel supply core specifically designed for heavy-duty, high-intensity operating environments. This product is widely applicable to various large-displacement electronically controlled diesel engines and is suitable for heavy-duty mining dump trucks, large tracked hydraulic excavators, special bulldozers, and high-load land-based generator sets, among other core heavy equipment.

Adhering to the design concept of "ultra-fine atomization and millisecond-level response," the internal core needle valve assembly and valve core undergo high-precision micro-hole EDM machining and extremely low-friction grinding, with a high-quality surface coating.

This high-pressure diesel engine injector (OE part number: 4076912) is specifically designed for heavy-duty diesel power systems, employing a high-precision micron-level injection orifice design and an ultra-wear-resistant needle valve assembly. As the core brain of the fuel supply system, it can achieve ultra-fine fuel atomization under extremely high pressure, ensuring a perfect fuel-air mixture ratio. When you press the accelerator, you can immediately feel the agility and smoothness of the power output. This not only significantly improves engine idling vibration and acceleration lag, but also reduces fuel consumption per 100 kilometers while decreasing black smoke emissions. Whether for long-haul transportation or high-intensity work conditions, it provides the engine with ample and continuous power, making the driving experience completely refreshed.

Direct Supply from the Source Factory and Large Inventory Guarantee: Addressing the problems of long procurement cycles and frequent stockouts in traditional channels, we rely on our modern, self-owned production base to maintain a large inventory of readily available stock. This directly saves customers the cost of middlemen and enables rapid delivery after order placement, significantly reducing equipment downtime and improving operational efficiency.

100% Rigorous Quality Inspection Throughout the Process: Addressing the challenges of unstable component operation and premature failure, each injector undergoes multiple precision instrument tests before leaving the factory, including high-pressure sealing, injection accuracy, and response timing. Strict control over product consistency effectively avoids secondary repair costs due to component failures, ensuring long-term stable engine operation. Ultra-high pressure precision atomization and fuel efficiency: Addressing the issues of insufficient power and high fuel consumption caused by incomplete combustion, this product employs excellent microporous processing technology to achieve micron-level atomization under ultra-high pressure. This design promotes complete fuel combustion, increasing peak engine torque output while reducing fuel consumption per unit, significantly saving you on daily fuel costs.

High-pressure resistant and corrosion-resistant premium materials: To address the risks of component wear and seizure under inferior fuel or extreme high-temperature and high-pressure environments, the core valve assembly uses high-strength alloy steel and wear-resistant coating technology. This greatly enhances fatigue resistance and corrosion resistance, extending product lifespan and ensuring stable performance even under harsh operating conditions.

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Heavy-Duty Long-Distance Logistics Vehicles: In long-distance highway logistics transportation, vehicles face prolonged continuous operation and high-load driving. By replacing the injector with this high-pressure injector, drivers can clearly feel smoother upshifting and acceleration, stronger climbing power without attenuation, and long-term operation effectively controls fuel consumption, saving logistics fleets significant operating costs.

Construction Machinery and Mining Equipment: In the high-intensity operating environment of heavy construction machinery such as excavators and loaders, the equipment frequently operates under high loads. With its excellent wear resistance and stability, this product helps the equipment operate smoothly in harsh conditions with high dust and heavy loads, significantly reducing the risk of downtime due to power failure and ensuring efficient project progress.

Passenger Transport and Municipal Special Vehicles: In the daily operation of intercity passenger buses or municipal support vehicles, there are extremely high requirements for vehicle emission standards and operational stability. This injector precisely controls the injection volume, ensuring complete fuel combustion, effectively improving engine vibration and black smoke exhaust problems, ensuring the vehicle passes environmental inspections smoothly and operates safely and stably.

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Q: How long does it take to ship after placing an order? Do you support bulk purchases?

A: As a source factory, our warehouse maintains ample stock of finished products year-round. Regular orders can be shipped within 24-48 hours of payment. We also have strong mass production capabilities, fully supporting wholesale and long-term large-volume purchasing needs.

Q: Are there any special precautions when installing this injector?

A: Before installation, please be sure to clean the fuel lines and replace the fuel filter with a brand new one to prevent impurities from entering the precision needle valve. It is recommended that a professional diesel engine repair technician use a torque wrench to install it according to standard parameters and rewrite the code according to vehicle requirements (if applicable).

Q: How long is the warranty service provided? What should I do if there are quality problems after receiving the goods?

A: We provide a quality guarantee service for all injectors leaving the factory. If a performance failure occurs within the warranty period due to non-human causes, simply provide the relevant inspection video or report, and our after-sales team will arrange for a replacement or refund as soon as possible.

Q: Does this injector have any requirements for the diesel fuel used in daily life? A: To ensure the optimal service life of the precision components of the fuel injector, it is recommended to use regular diesel fuel that meets national/international standards and to replace the high-quality fuel filter regularly to prevent moisture and impurities from wearing down the core components.