Common Rail Diesel Fuel Injector Assembly 3411754 for Cu-mmins Diesel Engine Qsm11

<Product Description> This high-precision heavy-duty diesel injection control assembly (standard part number: 3411754, common interchangeable part numbers include 3411754PX, 3013892, 3027588, etc.) is specifically designed for large-displacement, high-load diesel power systems (such as ISM11, QSM11, M11, N14 series engines). It is the core actuator for achieving high-pressure fuel particulate atomization and microsecond-level precision control. This product is widely used in large-tonnage transport trucks in open-pit mines, large tracked excavators, heavy bulldozers, and high-load land-based emergency diesel generator sets.

Adhering to the design philosophy of "high-pressure micron-level atomization and millisecond-level rapid response," the core needle valve assembly and armature valve core are both manufactured using ultra-high precision grinding and polishing processes, with a high-density anti-coking hardened coating covering the surface, effectively handling the particulate abrasion caused by complex diesel fuel qualities. After the equipment is upgraded, operators will experience immediate improvements in operation: ignition starts crisply and cleanly, and the severe vibrations at low idle speeds are completely eliminated; under heavy-load tunneling or full-load uphill conditions, the control lever and accelerator pedal provide smooth and consistent feedback, resulting in stable and continuous power output, while significantly reducing exhaust black smoke and delivering excellent overall fuel economy.

**Product Description**

**Product Advantages**
Advantages:** Modern, self-owned factory with precision manufacturing.

Problems Solved: Traditional supply chain subcontracting often leads to dimensional deviations in component fit and inconsistent batch performance, resulting in uneven fuel supply to cylinders and potential early high-pressure leaks.

Value Brought: Utilizing a standardized, self-built production base for end-to-end precision manufacturing, from micron-level machining of needle valve components to automated assembly, the entire process is controlled to ensure consistent injection height across cylinders, providing a solid and reliable power guarantee for long-term equipment operation.

Advantages: Rigorous quality control using a fully digital simulation bench.

Problems Solved: Inferior parts can easily lead to unstable vehicle performance, cylinder scoring, knocking, and wasted time and money due to repeated disassembly and adjustment.

Value Brought: Each injector undergoes a fully automated digital testing bench before leaving the factory. Under simulated high-temperature and ultra-high-pressure working conditions, the injection volume and return oil sealing performance across different pressure ranges are precisely calibrated, ensuring immediate usability upon installation and significantly saving time and costs associated with equipment maintenance and debugging.

Advantages: A large, readily available inventory and efficient warehousing and distribution.

Problems Solved: Construction machinery and commercial trucks are high-uptime, high-revenue tools. A breakdown due to fuel system failure can result in costly delays, compensation for lost work time, and other losses.

Value Brought: The warehousing center maintains a large stock of best-selling specifications year-round. Orders are responded to quickly, with priority packing and shipping within 24-48 hours, greatly shortening logistics cycles and helping fleets and owners quickly restore equipment availability.

Advantages: Specially hardened, wear-resistant, and corrosion-resistant materials.

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. Even under harsh environments and prolonged high-load operation, they maintain stable performance, effectively avoiding the additional costs associated with frequent disassembly and repairs.

</Product Advantages>

<Parameter Table>

| Parameter Name | Parameter Value |

| --- | --- |

| Product Name | Heavy-Duty Diesel Engine High-Pressure Electronic Injector |

| Standard OE Part Number | 3411754 |

| Common Interchange Numbers | 3411754PX / 3013892 / 3027588 |

| Applicable Engine Models | ISM11 / QSM11 / M11 / N14 Series |

| Fuel Supply System | High-Pressure Electronic/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-Needle Machining |

| Operating Temperature Range | -40°C to +125°C |

| Internal Sealing Components | High-Temperature Resistant and Swell-Resistant Special Fluororubber (FKM O-Rings) |

| Single Unit Net Weight | Approx. 1.28 kg / piece |

| Testing Standards | 100% Automated Bench Flow and Pressure Testing |

| Warranty Period | 12-Month Extended Warranty / 1-Year Factory Technical Support |

| </Parameter Table> | |

<Application Scenarios> Open-Pit Mine Excavation and Continuous Loading of Large Tonnage Rock: In the dusty and harsh working environment of open-pit mines, heavy equipment is operating at full power to grab and load heavy loads onto hard rock strata. As hydraulic resistance surges instantaneously, the 3411754 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, 24/7 power supply and emergency infrastructure support: In remote construction sites or large mining areas lacking stable power grids, large generator sets driven by high-displacement diesel engines serve as the core power source, operating continuously for dozens of hours. With the frequent switching on and off of large specialized electrical equipment on construction sites, the electrical load changes rapidly. The fuel injectors, relying on extremely high consistency and rapid injection control, ensure that the generator set speed remains stable at the standard level, with no drift in output voltage and frequency.

**Application Scenarios**

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% newly manufactured high-quality parts, 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 offer you the true factory price.

Q: How long after placing an order will it be shipped? How long will it take to receive it? A: This model is a core stock item in our warehouse. After you complete payment, it will be inventoried, packed, and shipped within 24 to 48 hours. We cooperate with major international express delivery channels, and it usually arrives within 5-9 business days.

Q: What details should I pay attention to 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 performance of the new part and ensuring 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 comes with a 12-month warranty. If a performance failure occurs during the warranty period due to non-human causes, the after-sales customer service team will arrange for a replacement or refund as soon as possible.