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Common Rail Diesel Fuel Injector Assembly 4076912 for Cu-mmins Engine Qsx15 Lsx15
| MOQ: | 1 pieces |
| Price: | US $275-299 / piece |
| Payment Method: | L/C,D/A,D/P,T/T,Western Union |
| OE No. | 4076912 |
| Type | Fuel Injector |
| Car Make | Diesel Car |
| Packing | Neutral Packing or Customize Packing |
| Warranty | 1 Year |
| MOQ | 1PC |
This high-precision diesel electronic high-pressure injection assembly (standard part number: 4076912, common interchangeable parts include 4076912PX, 3013892, 3027588, etc.) is specifically designed for large-displacement heavy-duty diesel power systems (such as ISM11, QSM11, and M11 series engines). It is the core control component for achieving ultra-high pressure fuel supply and micron-level fine atomization. This product is widely used in large-tonnage open-pit mining trucks, urban engineering dump trucks, large excavators, and high-load land-based diesel generator sets.
Adhering to the design philosophy of "micron-level fine atomization and millisecond-level rapid response," the core needle valve assembly and armature valve core are both manufactured using ultra-high precision grinding and low-friction polishing processes. The surface is covered with a high-density anti-coking hardened coating, which can easily cope with particulate abrasion caused by poor diesel quality. After your equipment is upgraded, drivers and operators will experience immediate improvements: ignition starts crisply and cleanly, and the severe vibrations and jerks at low idle speeds are completely eliminated; when facing fully loaded steep inclines or high-intensity continuous tunneling conditions, the accelerator pedal and control lever respond smoothly and precisely, providing consistent and stable power output, effectively reducing exhaust fumes and resulting in excellent overall fuel economy control.
Advantages: Direct shipping from our self-operated modern production base.
Problems Solved: Traditional procurement models involve multiple intermediaries and high turnover, easily leading to dimensional deviations in component fit, uneven fuel supply to cylinders, and early high-pressure leaks, while also increasing procurement costs.
Value Brought: Relying on a standardized self-built production base for end-to-end precision manufacturing, eliminating layers of intermediaries and ensuring consistent injection height across cylinders, reducing maintenance costs while providing a solid and reliable power guarantee for long-term equipment operation.
Advantages: 100% rigorous quality inspection under all operating conditions using a fully digital test bench.
Problem Solved: Low-quality parts can easily lead to unstable power, cylinder scoring, knocking, and wasted time and extra costs due to repeated disassembly and adjustment after installation.
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 adjustment.
Advantages: A large, readily available inventory and efficient warehousing and distribution.
Problem Solved: Construction machinery and commercial trucks are high-uptime, high-revenue tools. If a breakdown occurs due to fuel system failure, downtime due to lack of materials will result in costly delay compensation and lost work time.
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 shorten the logistics and delivery cycle, helping fleets and owners quickly restore equipment availability and effectively avoiding downtime losses.
Advantages: Special hardened alloy wear-resistant and corrosion-resistant material.
Problem Solved: Differences in diesel lubricity and sulfur content across different regions can easily lead to premature wear of valve components and valve core seizure.
Value Gained: The core valve components are made of high-strength special bearing steel and undergo surface anti-corrosion hardening treatment, significantly improving fatigue resistance and wear resistance. This ensures 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 Injector |
| Standard OE Part Number | 4076912 |
| Common Interchange Numbers | 4076912PX / 3013892 / 3027588 |
| Applicable Engine Models | ISM11 / QSM11 / M11 Series |
| Fuel Supply System | High-Pressure Electronic Common Rail/Unit Injection 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-hole machining |
| Operating Temperature Range | -40°C to +125°C |
| Internal Sealing Components | High-Temperature Resistant and Anti-Swelling Special Fluororubber (FKM O-Rings) |
| Net Weight per Unit | Approx. 1.28 kg / piece |
| Testing Standard | 100% Automated Bench Flow and Pressure Testing |
Open-pit mining and continuous loading of large-tonnage rocks: In the dusty and harsh working environment of open-pit mines, heavy equipment is at full power, grabbing and loading heavy loads onto hard rock strata. As hydraulic resistance surges instantaneously, the 4076912 injector, with its microsecond-level electronic control response, establishes excellent atomization pressure, ensuring that the engine can still output continuous high torque even when facing drastic speed fluctuations. The complex actions are smooth and continuous, completely avoiding engine stalling and misfires.
High-load all-weather power supply and infrastructure emergency support: In remote infrastructure construction sites or large mining areas lacking stable power grids, large generator sets driven by large-displacement diesel engines serve as the core power source, operating continuously for dozens of hours without interruption. With the frequent switching on and off of large-scale special electrical equipment on construction sites, the electrical load changes rapidly. The fuel injector, relying on extremely high consistency and rapid fuel injection control, ensures that the generator set speed remains stable at the standard level, and that the output voltage and frequency do not drift.
Q: Why are your prices so much lower than local physical stores? Are they brand new?
A: We promise that all products sold are 100% brand new, high-quality parts, and are definitely not recycled or refurbished parts. Because we ship directly from our own factory, eliminating the markups and rental costs of traditional physical stores and multiple layers of distributors, we can pass on the true factory price to you.
Q: How long does it take to arrange shipment after placing an order? How long will it take to receive it?
A: This model is a core stock item in our warehouse. After you complete payment, we can check, pack, and arrange for shipment within 24 to 48 hours. We cooperate with mainstream international express delivery channels, and it usually arrives at your door within 5-9 business days.
Q: What details should be considered when arranging for a technician to install this brand-new high-pressure fuel injector?
A: High-pressure fuel systems are extremely sensitive to impurities. Before installation, please thoroughly clean the diesel tank and fuel lines, and replace the fuel filter with a brand-new, high-specification one. Ensuring a clean fuel system is a prerequisite for maximizing the peak performance of the new component and guaranteeing its extended lifespan.
Q: What should I do if I find an incorrect model number after receiving the goods, or encounter performance abnormalities during subsequent use?
A: As long as the product has not been opened or tested, its appearance and accessories are intact, and it does not affect resale, we offer a 90-day return and exchange guarantee. In addition, the product has a 12-month warranty period. If a performance failure occurs within the warranty period due to non-human-caused reasons, our after-sales customer service team will arrange for a replacement or refund as soon as possible.
