4302904
Plain Union Elbow
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$39.95 $47.54

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 4302904 Plain Union Elbow, a component manufactured by Cummins, plays a significant role in the fluid systems of commercial trucks. This part is essential for the efficient operation of these vehicles, facilitating the redirection of fluid flow without compromising system integrity.

Basic Concepts of Plain Union Elbow

A Plain Union Elbow is a fitting used in fluid systems to connect two pipes at an angle. It allows for the efficient transfer of fluids, such as fuel or coolant, by providing a secure and angled connection between pipes 1.

Purpose of the 4302904 Plain Union Elbow

This Cummins part enables the transfer of fluids within the truck’s system by connecting pipes at an angle, which is often necessary in the compact and complex layout of a truck’s fluid system. It ensures that fluids can be directed as needed without leakage or loss of pressure 2.

Key Features

The 4302904 Plain Union Elbow is characterized by several key features that enhance its functionality. It is made from durable materials that can withstand the pressures and temperatures typical in a truck’s fluid system. The design includes precise threading and sealing surfaces to ensure a secure connection. Additionally, it may feature unique attributes such as corrosion resistance or ease of disassembly for maintenance purposes 3.

Benefits

Using the 4302904 Plain Union Elbow offers several advantages. Its durable construction contributes to the longevity of the fitting, reducing the need for frequent replacements. The design allows for straightforward installation, minimizing downtime during maintenance. Furthermore, its efficient fluid management capabilities help maintain the optimal performance of the truck’s systems.

Installation Process

Installing this part involves several steps to ensure a secure fit. First, the pipes to be connected should be cleaned and prepared. The elbow is then positioned between the pipes, and the appropriate tools are used to tighten the connections. It is important to follow the manufacturer’s guidelines to avoid over-tightening, which could damage the fitting or the pipes.

Troubleshooting Common Issues

Common issues with the 4302904 Plain Union Elbow may include leaks or blockages. To diagnose these problems, one should inspect the fitting for signs of wear or damage and check the connections for tightness. If a leak is detected, the fitting may need to be replaced or resealed. Blockages can often be resolved by cleaning the fitting or the connected pipes.

Maintenance Tips

Regular maintenance of the 4302904 Plain Union Elbow is important for ensuring its longevity and optimal performance. This includes periodic inspection for signs of wear or corrosion and cleaning the fitting as necessary. Following the manufacturer’s recommended maintenance schedule will help prevent issues and extend the life of the component.

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 reputation for quality and innovation in the commercial truck industry. The company’s commitment to excellence is reflected in its wide range of products, which are designed to meet the demanding requirements of commercial vehicles.

Cummins Engine Compatibility with Part 4302904

The Plain Union Elbow, part number 4302904, manufactured by Cummins, is a component in the engine systems of several Cummins engines. This part is designed to facilitate the connection between different sections of the engine’s piping, ensuring a secure and leak-free joint.

QSK19 and CM2350 Engines

The QSK19 and CM2350 engines, both part of Cummins’ QSK series, are medium-duty diesel engines known for their robust performance and reliability. The Plain Union Elbow part 4302904 is integral to these engines, providing a necessary connection in the exhaust and cooling systems. Its design ensures that the connection remains stable under the high temperatures and pressures typical in these engines.

K105 Engine

The K105 engine, another member of the Cummins lineup, also benefits from the use of the Plain Union Elbow part 4302904. This part is essential in maintaining the integrity of the engine’s piping system, ensuring that connections remain tight and secure. The K105 engine, like the QSK19 and CM2350, relies on this component to manage the flow of fluids and gases efficiently.

Application Across Engine Series

The Plain Union Elbow part 4302904 is a versatile component, designed to fit seamlessly into the exhaust and cooling systems of the QSK19, CM2350, and K105 engines. Its compatibility across these engines highlights its importance in maintaining the operational efficiency and reliability of Cummins’ engine systems. This part’s design ensures that it can withstand the demanding conditions of engine operation, providing a durable and dependable solution for connecting various engine components.

Role of Part 4302904 Plain Union Elbow in Plumbing and Turbocharger Systems

Plumbing Systems

In plumbing systems, the 4302904 Plain Union Elbow is instrumental in facilitating the redirection of fluid flow. This component is commonly used in conjunction with pipes, valves, and fittings to create a secure and leak-proof connection. The elbow allows for a change in direction without compromising the integrity of the system. It is often employed in complex piping layouts where space constraints necessitate a change in the pipeline’s path. The union feature of the elbow ensures that the connection can be easily disassembled for maintenance or repair, enhancing the overall efficiency and reliability of the plumbing system.

Turbocharger Systems

Within turbocharger systems, the 4302904 Plain Union Elbow plays a significant role in managing the flow of exhaust gases and compressed air. It is typically integrated into the exhaust and intake manifolds, where it helps to redirect the flow of gases to and from the turbocharger. This component ensures that the connection between different sections of the manifold is both secure and adjustable, allowing for easier maintenance and upgrades. The union elbow’s design facilitates the efficient transfer of high-pressure air, contributing to the turbocharger’s performance and the engine’s overall efficiency.

Conclusion

The 4302904 Plain Union Elbow is a critical component in the fluid systems of commercial trucks and various Cummins engines. Its durable construction, efficient design, and versatile application make it an essential part for maintaining the operational efficiency and reliability of these systems. Regular maintenance and proper installation are key to ensuring the longevity and optimal performance of this component.


  1. Livesey, A. (2000). The Repair of Vehicle Bodies. Elevier.

  2. Osgood, L., Cameron, G., & Christensen, E. (2024). Engineering Mechanics: Statics. Creative Commons.

  3. Majewski, A., & Jaskelainen, H. (2023). Diesel Emissions and Their Control: Second Edition. SAE International.

SPECIFICATIONS

Package Dimensions
3.3 x 1.7 x 1.7 in
Weight
0.3 lbs
* 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.