3906571RX
Pump Fuel/LUC Rotary LV
Cummins®

DISCONTINUED

Cummins®

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Cummins 3906571RX Pump Fuel/LUC Rotary LV is a specialized component designed for use in heavy-duty trucks. This part plays a significant role in the fuel delivery system, ensuring that the engine receives the necessary fuel for optimal performance. Its design and functionality are tailored to meet the demanding requirements of heavy-duty applications, contributing to the overall efficiency and reliability of the vehicle.

Basic Concepts of Fuel Pumps

Fuel pumps are integral to the fuel delivery system of any vehicle, including heavy-duty trucks. Their primary function is to transport fuel from the tank to the engine, maintaining the required pressure and flow rate. There are two main types of fuel pumps: mechanical and electric. Mechanical fuel pumps are driven by the engine’s camshaft, while electric fuel pumps are powered by the vehicle’s electrical system. Each type has its own set of advantages and is suited to different applications. The Cummins 3906571RX is a mechanical pump that utilizes a rotary mechanism to deliver fuel efficiently 1.

Operation of the 3906571RX Pump Fuel/LUC Rotary LV

The 3906571RX operates using a rotary mechanism, which involves a rotating cam and a set of lobes that create a pumping action. As the cam rotates, the lobes move within the pump housing, drawing fuel in and then pushing it out at the required pressure. This design allows for a consistent and reliable fuel delivery, which is crucial for the performance of heavy-duty trucks. The rotary mechanism also offers advantages such as reduced noise and vibration compared to traditional mechanical pumps 2.

Purpose and Role in Truck Operation

In the context of heavy-duty truck operations, the 3906571RX serves a specific purpose. It ensures that the engine receives a steady supply of fuel under various operating conditions, which is vital for maintaining performance and efficiency. By providing consistent fuel pressure and flow, this part helps to optimize the combustion process, leading to better fuel economy and reduced emissions. Its role in the fuel system is therefore significant, contributing to the overall reliability and durability of the truck 3.

Key Features

The 3906571RX boasts several key features that enhance its performance and durability. These include a robust design that can withstand the rigors of heavy-duty use, high-quality materials that ensure longevity, and advanced technological elements such as precision-machined components and sealed bearings. These features work together to provide a reliable and efficient fuel delivery solution for heavy-duty trucks.

Benefits of Using the 3906571RX Pump Fuel/LUC Rotary LV

Using the 3906571RX offers several benefits. One of the primary advantages is improved fuel efficiency, as the consistent fuel delivery helps to optimize the combustion process. Additionally, the pump’s reliable performance and durability reduce the likelihood of fuel system failures, leading to lower maintenance costs. The rotary mechanism also contributes to quieter operation, enhancing the overall driving experience.

Troubleshooting Common Issues

Identifying and troubleshooting common problems associated with the 3906571RX can help maintain its performance. Common issues may include inconsistent fuel delivery, unusual noises, or leaks. To diagnose these problems, it is important to inspect the pump for signs of wear or damage, check the fuel lines for leaks, and ensure that the pump is properly installed and aligned. Resolving these issues may involve cleaning or replacing components, tightening connections, or performing a more thorough repair if necessary 4.

Maintenance Tips

To ensure the optimal performance and longevity of the 3906571RX, regular maintenance is recommended. This includes periodic inspection of the pump and its components, cleaning to remove any contaminants, and replacing worn or damaged parts as needed. Additionally, ensuring that the fuel system is free of debris and that the pump is properly lubricated can help prevent issues and extend the lifespan of the pump.

Cummins Corporation Overview

Cummins Corporation is a well-established manufacturer with a strong reputation in the production of diesel engines and related components. Founded in 1919, the company has a long history of innovation and excellence in the automotive and heavy-duty truck industries. Cummins is known for its commitment to quality, reliability, and performance, making it a trusted name among professionals and enthusiasts alike. The 3906571RX is a testament to Cummins’ expertise in designing and manufacturing high-quality fuel delivery solutions.

Conclusion

The Cummins 3906571RX Pump Fuel/LUC Rotary LV is a critical component in the fuel delivery system of heavy-duty trucks. Its robust design, advanced features, and reliable performance make it an essential part for ensuring optimal engine operation. Regular maintenance and proper troubleshooting can help maintain its efficiency and longevity, contributing to the overall performance and reliability of the vehicle.


  1. Hilgers, Michael. Chassis and Axles. Springer Vieweg, 2023.

  2. Randall, Martynn. Haynes Manual on Diesel Engines. Haynes Publishing, 2015.

  3. Reif, Konrad, ed. Gasoline Engine Management Systems and Components. Springer Vieweg, 2015.

  4. Cummins Corporation. Fault Code Troubleshooting Manual. Bulletin Number 5676911, M15 CM2670 M106B.

RELATED PARTS

SPECIFICATIONS

Package Dimensions
13.8 x 11.25 x 6.8 in
Weight
16.01 lb
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.