3944054
Plain Union Elbow
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$6.99 $8.32

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 3944054 Plain Union Elbow is a component designed for use in commercial truck systems. Manufactured by Cummins Inc., a well-established name in the automotive and heavy-duty truck parts industry, this part serves a specific function within the fluid transfer systems of trucks. Understanding its role, features, and benefits can help in maintaining and optimizing the performance of commercial vehicles.

Basic Concepts of Plain Union Elbows

A Plain Union Elbow is a type of fitting used in fluid systems to connect two pipes at an angle. Its primary function is to facilitate the change in direction of fluid flow without compromising the integrity of the system. The union aspect allows for easy disassembly and reassembly, which is beneficial for maintenance and repair purposes. The elbow design ensures that fluid can navigate turns in the piping system efficiently 1.

Purpose of the 3944054 Plain Union Elbow in Truck Operations

In the context of commercial trucks, the 3944054 Plain Union Elbow plays a role in the fluid transfer systems by enabling the redirection of fluid flow where necessary. This is particularly important in systems where space is limited, and direct routing is not feasible. By allowing fluid to change direction, it helps in the efficient operation of various truck systems, including hydraulic, fuel, and coolant systems 2.

Key Features

The Cummins 3944054 Plain Union Elbow is characterized by several features that enhance its performance. It is typically made from durable materials that can withstand the pressures and temperatures encountered in truck fluid systems. The design includes precise threading and sealing surfaces to ensure a secure connection between pipes. Additionally, its union feature allows for easy disconnection without the need for cutting or soldering, facilitating maintenance and repairs 3.

Benefits of Using the Cummins 3944054 Plain Union Elbow

The advantages of using the Cummins 3944054 Plain Union Elbow include increased durability due to its material composition and design. Its ease of installation and disassembly makes it a convenient choice for maintenance tasks. Furthermore, its efficient design contributes to the overall effectiveness of fluid transfer systems in trucks, ensuring smooth operation and reliability.

Installation and Usage Guidelines

Proper installation of the Cummins 3944054 Plain Union Elbow involves ensuring that the pipes to be connected are clean and free of debris. The fitting should be screwed onto the pipes until snug, taking care not to overtighten, which could damage the threads or seals. It is also important to follow the manufacturer’s guidelines for torque specifications to ensure a secure connection without risking damage.

Troubleshooting Common Issues

Common issues with Plain Union Elbows may include leaks at the connection points or difficulty in disassembly. Diagnostic methods involve checking for proper alignment and seating of the fitting, as well as inspecting the condition of the seals and threads. Solutions may range from re-tightening the fitting to replacing damaged components. Regular inspection and maintenance can help prevent these issues.

Maintenance Tips

To prolong the lifespan of the Cummins 3944054 Plain Union Elbow, regular maintenance is recommended. This includes periodic inspection for signs of wear or damage, cleaning the fitting and connected pipes to remove any buildup, and ensuring that all connections are secure. Following these practices can help maintain the efficiency and reliability of the fluid transfer systems in commercial trucks.

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 spanning over a century, Cummins has established a strong reputation in the commercial truck industry for producing high-quality, reliable components. Their product range includes engines, powertrain components, and aftermarket parts, all designed to meet the demanding requirements of commercial and industrial applications.

Compatibility of Plain Union Elbow Part 3944054 with Cummins Engines

The Plain Union Elbow part number 3944054, manufactured by Cummins, is designed to fit seamlessly with a range of Cummins engines. This part is crucial for maintaining the integrity and functionality of the engine’s cooling system by connecting different sections of the hoses and pipes.

ISC CM554 and ISL CM554 Engines

The Plain Union Elbow part 3944054 is compatible with both the ISC CM554 and ISL CM554 engines. These engines are part of Cummins’ range of medium-duty diesel engines, known for their reliability and efficiency. The part ensures a secure and leak-proof connection, which is vital for maintaining the cooling system’s performance.

ISC CM850 and QSC8.3 CM554 Engines

Similarly, the ISC CM850 and QSC8.3 CM554 engines also benefit from the use of the Plain Union Elbow part 3944054. These engines are designed for heavy-duty applications, and the part’s robust construction ensures it can withstand the rigors of such environments. The compatibility with these engines highlights the versatility of the part in different engine configurations.

ISL9 CM2150 SN and QSL9 CM554 Engines

The ISL9 CM2150 SN and QSL9 CM554 engines are also part of Cummins’ extensive lineup. The Plain Union Elbow part 3944054 fits these engines perfectly, providing a reliable connection that is essential for the smooth operation of the cooling system. The precision engineering of the part ensures it meets the specific requirements of these high-performance engines.

Role of Part 3944054 Plain Union Elbow in Engine Systems

The 3944054 Plain Union Elbow is a critical component in various engine systems, facilitating the smooth operation and efficient performance of several key elements.

In the arrangement of engine components, the Plain Union Elbow plays a significant role in connecting different sections of the system. It ensures that the flow of fluids or gases is uninterrupted, allowing for a seamless integration of various parts. This is particularly important in complex engine setups where multiple components need to work in harmony.

For the oil fill system, the Plain Union Elbow is used to connect the oil fill port to the rest of the lubrication system. This connection is vital for maintaining the correct oil levels and ensuring that all moving parts are adequately lubricated. The elbow’s design allows for easy maintenance and replacement, which is beneficial during routine servicing.

In compressor systems, the Plain Union Elbow is often employed to link the compressor to other parts of the engine, such as the intake manifold or intercooler. This connection is essential for the efficient transfer of compressed air, which is a fundamental aspect of the compressor’s function. The elbow’s robust construction ensures that it can withstand the high pressures and temperatures associated with compressor operations.

Lastly, in air systems, the Plain Union Elbow is used to connect various air intake and exhaust components. This includes linking the air filter to the intake manifold or connecting the turbocharger to the intercooler. The elbow’s ability to provide a secure and leak-free connection is vital for maintaining the engine’s air-fuel ratio and overall performance.

Conclusion

Overall, the Cummins 3944054 Plain Union Elbow is a versatile component that enhances the functionality and reliability of engine systems by ensuring smooth and efficient connections between critical parts. Its compatibility with a wide range of Cummins engines underscores its importance in maintaining engine performance and longevity.


  1. Miedema, S. A., & Lu, Z. (2010). The Dynamic Behavior of a Diesel Engine. Published by Drir S. A. Miedema.

  2. Thompson, R. (2019). Automotive Maintenance: Light Repair. Cengage Learning.

  3. Dixon, J. (2014). Modern Diesel Technology: Heating, Ventilation, Air Conditioning, Refrigeration, 2nd Edition. Cengage Learning.

* 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.