3973032
Banjo Connector
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$80.95 $96.33

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 3973032 Banjo Connector, manufactured by Cummins, is a critical component in commercial truck operations. Cummins is renowned for its reliable and high-performance diesel engines and related components. This part plays a significant role in maintaining the efficiency and reliability of fluid systems in trucks.

Basic Concepts of Banjo Connectors

A banjo connector is a fitting used in fluid systems, such as hydraulic or fuel systems, to connect hoses or pipes. It typically consists of a short, curved pipe with fittings on each end, resembling a musical instrument. In a truck’s hydraulic or fuel system, the banjo connector allows for the transfer of fluids under pressure, ensuring smooth and efficient system operation 1.

Purpose of the 3973032 Banjo Connector

The 3973032 Banjo Connector is designed to facilitate secure and leak-proof connections between components in a truck’s hydraulic or fuel system. It ensures the efficient transfer of fluids, contributing to the overall performance and reliability of the truck 2.

Key Features

This Cummins part boasts several key features that enhance its functionality. It is constructed from high-quality materials, ensuring durability and resistance to corrosion. The design includes precise threading and sealing surfaces, which contribute to a secure fit and prevent leaks. Additionally, the connector may feature integrated gaskets or o-rings to further enhance its sealing capabilities 3.

Benefits

The advantages of using the 3973032 Banjo Connector include improved system reliability due to its secure and leak-proof design. It also offers ease of installation, with straightforward threading that allows for quick and efficient connections. Maintenance benefits are also notable, as the design facilitates easy disassembly and reassembly for inspection or replacement.

Installation Process

Installing the 3973032 Banjo Connector requires careful attention to detail to ensure a secure fit. The process involves cleaning the connection points, applying the appropriate sealant if necessary, and threading the connector onto the system. Tools such as wrenches may be required to tighten the connection to the specified torque. Following best practices, such as avoiding over-tightening, ensures the integrity of the connection.

Troubleshooting Common Issues

Common problems with banjo connectors include leaks or connection failures. Troubleshooting steps may involve inspecting the connection for signs of wear or damage, ensuring that the sealant is applied correctly, and verifying that the connector is tightened to the proper torque. Addressing these issues promptly can prevent more significant problems within the fluid system.

Maintenance Tips

Regular maintenance checks are recommended to ensure the longevity and optimal performance of the 3973032 Banjo Connector. This includes periodic inspection for signs of wear, corrosion, or leaks. Cleaning the connection points and replacing any worn gaskets or o-rings as needed can help maintain the integrity of the system.

Safety Considerations

When working with the 3973032 Banjo Connector, especially in high-pressure systems, it is important to observe safety guidelines. This includes wearing appropriate personal protective equipment, ensuring that the system is depressurized before making any connections or disconnections, and following all manufacturer recommendations for installation and maintenance.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the commercial truck industry. Their product range includes engines, filtration systems, and components like the 3973032 Banjo Connector, all designed to meet the demanding requirements of commercial applications.

Cummins Banjo Connector 3973032 in Engine Applications

The Cummins Banjo Connector 3973032 is a critical component in various engine systems, ensuring secure and leak-proof connections for hydraulic or fuel lines. This part is integral to maintaining the integrity of the engine’s fluid systems, which is essential for optimal performance and longevity.

B4.5 Engine Series

In the B4.5 engine series, the Banjo Connector 3973032 is utilized in several critical applications. This engine series is known for its reliability and efficiency, often found in a variety of industrial and commercial applications. The connector’s role in these engines is to provide a robust connection point for fuel lines, ensuring that the engine receives a consistent and uninterrupted fuel supply. The design of the connector allows for easy installation and removal, which is crucial for maintenance and repair operations.

Grouping of Engine Applications

The Banjo Connector 3973032 is also used in other Cummins engine models where similar fluid management requirements exist. Although the specific engine models are not detailed here, the connector’s application is consistent across various engine series. Its design and functionality make it a versatile component, suitable for use in engines that demand high reliability and performance.

The connector’s ability to withstand high pressure and temperature variations is a testament to its durability and effectiveness. This makes it an essential part of the engine’s infrastructure, contributing to the overall efficiency and safety of the engine’s operation.

Role of Part 3973032 Banjo Connector in Engine Systems

The Banjo Connector, identified by part number 3973032, is integral to the efficient operation of various engine systems, particularly those involving fluid transfer. This component is commonly employed in the fuel system, where it facilitates the connection between the fuel injection pump and the fuel lines.

In the context of the fuel injection pump, the Banjo Connector ensures a secure and leak-free interface, allowing pressurized fuel to be delivered consistently to the injectors. This is essential for maintaining the precise fuel delivery required for optimal engine performance and emissions control.

When integrated with the fuel pump, the Banjo Connector plays a similar role. It connects the fuel pump to the fuel lines, ensuring that fuel is efficiently transferred from the tank to the engine. This connection is vital for maintaining the necessary fuel pressure and flow rate, which are critical for the engine’s operation.

Additionally, the Banjo Connector is used in conjunction with other pumps within the engine system, such as auxiliary pumps or transfer pumps. Here, it ensures that fluids, whether fuel or lubricants, are transferred reliably and without interruption. This is particularly important in high-performance or high-stress engine environments where fluid dynamics play a significant role in overall engine health and performance.

In summary, the Banjo Connector (part 3973032) is a key component in the fluid transfer pathways of engine systems, ensuring secure, efficient, and reliable connections between various pumps and fuel lines.

Conclusion

The 3973032 Banjo Connector is a vital component in the maintenance and operation of commercial truck fluid systems. Its design and features contribute to the reliability and efficiency of these systems, ensuring optimal performance and longevity of the truck’s engine. Regular maintenance and adherence to safety guidelines are essential for maximizing the benefits of this Cummins part.


  1. Dixon, John C. Tyres Suspension and Handling Second Edition. SAE International, 1996.

  2. Hilgers, Michael. Alternative Powertrains and Extensions to the Conventional Powertrain. Springer Nature, 2023.

  3. Bonnick, Allan. A Practical Approach to Motor Vehicle Engineering and Maintenance. Elsevier, 2004.

SPECIFICATIONS

Package Dimensions
3.25 x 0.75 x 0.5 in
Weight
0.087 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.