3677045PX
Cos Fuel Pump Equalizer
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$9,499.95 $11,304.94
Refundable Core Charge: $1,149.95

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

Introduction

The Cummins 3677045PX Cos Fuel Pump Equalizer is a component designed to enhance the performance of the fuel system in heavy-duty trucks. Its primary role is to maintain consistent fuel pressure across multiple fuel pumps, ensuring efficient and reliable fuel delivery to the engine.

Basic Concepts of Fuel Pump Equalizers

A fuel pump equalizer is a device that balances the pressure between two or more fuel pumps. It functions by allowing fuel to flow between the pumps, ensuring that each pump operates at the same pressure. This consistency is vital for the proper functioning of the fuel system, as it prevents issues such as fuel starvation or over-pressurization, which can adversely affect engine performance 1.

Purpose of the Cummins 3677045PX Cos Fuel Pump Equalizer

The Cummins 3677045PX Cos Fuel Pump Equalizer plays a specific role in the operation of a truck’s fuel system by ensuring that fuel pressure remains consistent across multiple pumps. This consistency in pressure contributes to stable fuel delivery, which is crucial for maintaining optimal engine performance. By equalizing pressure, the component helps in reducing the load on individual pumps, potentially extending their lifespan and improving overall fuel system reliability 2.

Key Features

The 3677045PX Cos Fuel Pump Equalizer is characterized by its robust design and the use of high-quality materials. These features contribute to its durability and effectiveness in demanding environments. The component is engineered to withstand the pressures and temperatures typical of heavy-duty truck fuel systems, ensuring reliable performance over time. Additionally, its design facilitates easy integration into existing fuel systems, minimizing the complexity of installation.

Benefits of Using the Cummins 3677045PX Cos Fuel Pump Equalizer

Incorporating the 3677045PX Cos Fuel Pump Equalizer into a truck’s fuel system offers several advantages. It enhances the efficiency of the fuel system by ensuring consistent fuel pressure, which can lead to improved engine performance. Moreover, by balancing the workload across multiple pumps, it contributes to the reliability and longevity of the fuel system components. This can result in reduced maintenance requirements and lower operational costs over time 3.

Installation and Integration

Proper installation of the 3677045PX Cos Fuel Pump Equalizer is key to ensuring its effective operation within the fuel system. The installation process involves connecting the equalizer to the fuel pumps and ensuring that all connections are secure and leak-free. It is important to follow manufacturer guidelines to ensure compatibility and optimal performance. Additionally, integrating the equalizer into the existing fuel system may require adjustments to the system’s configuration to accommodate the new component.

Troubleshooting Common Issues

Common issues with the 3677045PX Cos Fuel Pump Equalizer may include leaks, inconsistent fuel pressure, or failure to equalize pressure across pumps. Troubleshooting these issues involves checking all connections for leaks, ensuring that the equalizer is correctly installed, and verifying that it is compatible with the fuel system components. In some cases, replacing faulty components or adjusting the system configuration may be necessary to resolve these issues.

Maintenance Tips

To ensure the optimal performance and longevity of the 3677045PX Cos Fuel Pump Equalizer, regular maintenance is recommended. This includes inspecting the component for signs of wear or damage, checking all connections for leaks, and cleaning the equalizer as necessary to remove any buildup that could affect its operation. Adhering to a regular maintenance schedule can help prevent issues and ensure the continued reliability of the fuel system.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the automotive industry, particularly in the manufacturing of diesel engines and related components. The company’s commitment to excellence and customer satisfaction has made it a preferred choice for heavy-duty truck manufacturers and operators worldwide.

Conclusion

The Cummins 3677045PX Cos Fuel Pump Equalizer is a vital component for maintaining consistent fuel pressure in heavy-duty truck fuel systems. Its robust design, ease of integration, and the benefits it offers in terms of efficiency and reliability make it a valuable addition to any fuel system. Regular maintenance and proper installation are key to ensuring its optimal performance and longevity.


  1. Drozdziel, P. (2023). The Vehicle Diesel Engine Startup Process Operational and Environmental Aspects. Routledge.

  2. Maclaurin, B. (2018). High Speed Off-Road Vehicles. Wiley.

  3. Limpert, R. (2011). Brake Design and Safety, Third Edition. SAE International.

* 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.