3165661 Fuel Pump High Pressure Pump for Cu-mmins K19 K38 PT Fuel Injection Pump Assembly

Product Description

This high-precision heavy-duty diesel injector assembly (standard OE part number: 3165661, common interchangeable parts include 3165661PX, 3013892, 3027588, etc.) is specifically designed for large-displacement, high-torque industrial diesel power systems. It is the core actuator for achieving ultra-high pressure fuel supply and fine atomization combustion. This product is widely installed in various heavy-duty diesel engines and is suitable for large-tonnage transport trucks in open-pit mines, large tracked excavators, heavy bulldozers, and high-load land-based emergency generator sets.

This product adheres to the design standard of "high-pressure ultra-micro atomization and microsecond-level fine control." The core needle valve assembly and armature valve core are ground with ultra-micron-level geometric matching, and the surface is coated with a high-density, anti-coking hardening layer, which can easily resist the corrosion of impurities in deteriorated diesel fuel. After the equipment upgrade, drivers and operators experience a completely new driving experience: ignition starts crisply and smoothly, and the severe vibrations and jerks at low idle speeds are completely eliminated; when climbing hills fully loaded or operating under heavy loads, the throttle and control lever respond quickly and smoothly, with a continuous and solid power output, significantly reduced black smoke from the exhaust, resulting in excellent overall fuel economy control.

Product Advantages

Self-built standardized production base: Addressing the issues of dimensional deviations and batch performance inconsistencies in parts caused by outsourcing, we rely on our modern, self-owned base for standardized manufacturing. From micron-level machining of needle valve components to automated assembly, we control the entire process, completely resolving uneven fuel supply and early leakage risks, ensuring consistent fuel injection in all cylinders, and providing long-lasting and stable power for the equipment.

100% Rigorous Full-Condition Bench Testing: To address the risks of unstable performance, knocking, or even cylinder scoring caused by the misinstallation of low-quality parts, each injector undergoes full-condition testing on a test bench before leaving the factory. This precisely calibrates the injection volume and return oil sealing under different pressures, ensuring immediate usability after installation and significantly reducing maintenance time and labor costs.

Massive Stock and Rapid Warehousing and Distribution: To mitigate the significant downtime losses caused by construction machinery and commercial trucks waiting for parts, our warehousing center maintains a large inventory of best-selling specifications year-round. After order confirmation, we respond quickly and prioritize packing and shipping within 24-48 hours, greatly shortening the logistics and delivery cycle. This helps fleets and owners quickly restore equipment availability and effectively avoid downtime losses.

Special alloy wear-resistant and corrosion-resistant material: Addressing the issue of premature wear and seizure of valve components caused by inferior diesel or high-sulfur oil, the core valve assembly utilizes high-strength special bearing steel and a 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 Table

Application Scenarios

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 3165661 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 injection control, ensures that the generator set speed remains stable at the standard range, and that the output voltage and frequency do not drift.

Q&A

Q: Can I use the product directly after installation? Is it necessary to enter a correction code?

A: Each fuel 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, and maintain a large inventory of this model year-round. Standard orders can be packaged and shipped within 24-48 hours, and large-volume orders can also be quickly arranged for production line scheduling.

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.