4978359
Male Union Elbow
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$219.95 $261.74

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 4978359 Male Union Elbow, manufactured by Cummins, is a component designed for use in commercial trucks. It is integral to the fluid systems within these vehicles, facilitating the connection and direction change in fluid lines. Cummins, a well-established name in the automotive industry, ensures that this part meets the rigorous demands of heavy-duty applications 2.

Basic Concepts of Male Union Elbow

A Male Union Elbow is a fitting used in fluid systems to change the direction of flow in a pipeline. Its basic design includes a male threaded end that connects to a female fitting, allowing for easy assembly and disassembly. In fluid dynamics, elbows like the 4978359 are used to redirect the flow of liquids or gases without causing significant pressure drops or turbulence 1.

Purpose of the 4978359 Male Union Elbow in Truck Operations

In the operation of a truck, the 4978359 Male Union Elbow plays a specific role by enabling the connection between different sections of fluid lines and changing the direction of fluid flow as needed. This is particularly important in systems where space is limited, or where the routing of fluids needs to be altered to accommodate other components or to improve the overall efficiency of the system.

Key Features

The 4978359 Male Union Elbow is characterized by several key features that enhance its functionality and durability. These include its material composition, which is designed to withstand the pressures and temperatures typical of truck fluid systems, and its connection type, which allows for secure and leak-proof connections. The design specifications of this elbow are tailored to ensure optimal performance in demanding environments.

Benefits of Using the 4978359 Male Union Elbow

Incorporating the 4978359 Male Union Elbow into truck fluid systems offers several advantages. It contributes to improved flow efficiency by minimizing resistance and turbulence in the fluid lines. Additionally, its design facilitates ease of maintenance, allowing for quick disconnection and reassembly when needed. The reliability of this component ensures consistent performance, reducing the likelihood of system failures.

Installation Considerations

When installing the 4978359 Male Union Elbow, it is important to follow guidelines and best practices to ensure proper function and longevity. This includes adhering to torque specifications to achieve a secure connection without over-tightening, which could damage the fitting. Proper alignment with other system components is also crucial to maintain the integrity of the fluid system.

Troubleshooting Common Issues

Common problems associated with the 4978359 Male Union Elbow may include leaks or blockages. To address these issues, it is recommended to first inspect the connections for proper torque and alignment. If a leak is detected, the fitting may need to be re-seated or replaced. Blockages can often be resolved by cleaning the fitting or checking for obstructions in the fluid line.

Maintenance Tips

To ensure the longevity and optimal performance of the 4978359 Male Union Elbow, regular maintenance practices are recommended. This includes periodic inspection for signs of wear or damage, and cleaning the fitting as necessary to prevent buildup that could impede fluid flow. Adhering to these maintenance tips will help maintain the efficiency and reliability of the fluid system.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry. The company’s commitment to excellence is evident in its wide range of products, which are designed to meet the demanding requirements of heavy-duty applications 2.

Part 4978359 Male Union Elbow Component Usage

The 4978359 Male Union Elbow is an essential component in the integration and functionality of various engine systems. Its primary role is to facilitate the connection between different sections of the engine, ensuring a secure and efficient flow of fluids or gases.

In the context of the manifold, the Male Union Elbow is often used to connect the intake manifold to the throttle body or other components within the intake system. This connection is vital for the proper distribution of air-fuel mixture to the engine cylinders. The elbow’s design allows for a flexible yet robust connection, accommodating the necessary angles and spatial constraints within the engine bay.

When considering the exhaust system, the Male Union Elbow plays a significant role in connecting various sections of the exhaust manifold to the catalytic converter or other downstream components. This ensures that exhaust gases are efficiently routed away from the engine, minimizing backpressure and enhancing overall engine performance. The elbow’s durable construction is imperative for withstanding the high temperatures and corrosive nature of exhaust gases.

In both applications, the Male Union Elbow contributes to the integrity and efficiency of the engine systems by providing a reliable connection point that can endure the dynamic conditions within an engine environment.

Conclusion

The 4978359 Male Union Elbow is a critical component in the fluid systems of commercial trucks, offering reliable connections and efficient fluid flow. Its design and material composition are tailored to withstand the demanding conditions of heavy-duty applications, ensuring durability and performance. Regular maintenance and proper installation are key to maximizing the benefits of this Cummins part.


  1. Allan Bonnick and Derek Newbold, A Practical Approach to Motor Vehicle Engineering and Maintenance, Third Edition, Elsevier Ltd, 2011.

  2. Mohamed ElSayed PE, Fundamentals of Integrated Vehicle Realization, SAE International, 2017.

SPECIFICATIONS

Package Dimensions
6.5 x 6.5 x 9.0 in
Weight
0.408 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.