3287421
Male Union
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$83.95 $99.90

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 Male Union 3287421 is a component manufactured by Cummins, a well-established name in the automotive and heavy-duty truck industry. This part is integral to the fluid transfer systems in commercial trucks, ensuring efficient operation and reliability. Cummins is renowned for its commitment to quality and innovation, making the 3287421 Male Union a trusted choice for fleet operators and maintenance professionals.

Basic Concepts of Male Unions

A male union is a type of fitting used in fluid transfer systems to connect two pipes or components securely. It typically consists of a male threaded end that screws into a corresponding female fitting. Male unions are designed to provide a leak-proof connection, allowing for easy disassembly and maintenance when needed. They are commonly used in various applications, including fuel, hydraulic, and coolant systems 1.

Purpose of the 3287421 Male Union in Truck Operations

The 3287421 Male Union plays a role in the operation of commercial trucks by facilitating the connection between different components within the fluid transfer system. It ensures a secure and reliable connection, allowing for the efficient transfer of fluids such as fuel, coolant, or hydraulic fluid. This part is crucial for maintaining the integrity of the system, preventing leaks, and ensuring that the truck operates smoothly 2.

Key Features of the 3287421 Male Union

The 3287421 Male Union is characterized by several key features that enhance its performance and durability. It is constructed from high-quality materials, such as brass or stainless steel, which provide excellent resistance to corrosion and wear. The design includes precise threading and sealing mechanisms to ensure a tight connection. Additionally, the union may feature unique attributes such as anti-vibration properties or enhanced sealing capabilities to further improve its functionality 3.

Benefits of Using the 3287421 Male Union

Utilizing the 3287421 Male Union offers several advantages. It contributes to improved system efficiency by ensuring a secure and leak-proof connection. The high-quality materials and design elements enhance the reliability of the fluid transfer system, reducing the likelihood of failures or leaks. Furthermore, the ease of maintenance provided by the male union design allows for quick disassembly and reassembly, minimizing downtime during repairs or inspections.

Troubleshooting and Maintenance Suggestions

Common issues that may arise with the 3287421 Male Union include leaks, corrosion, or difficulty in disassembly. To address these issues, regular inspections should be conducted to check for signs of wear or damage. Diagnostic tips include verifying proper torque specifications during installation and ensuring that the union is correctly aligned with the corresponding female fitting. Maintenance practices such as cleaning and lubricating the threads can help prevent corrosion and facilitate easier disassembly in the future.

Installation Considerations

When installing the 3287421 Male Union, it is important to consider several factors to ensure optimal performance. Proper torque specifications should be followed to achieve a secure connection without over-tightening, which could damage the threads. Alignment procedures must be carefully observed to ensure that the male union is correctly positioned within the system. Compatibility with other system components should also be verified to prevent any issues with fitting or function.

Common Applications

The 3287421 Male Union is widely used in various applications within commercial truck systems. It is commonly found in fuel systems, where it connects fuel lines to the engine or tank. In hydraulic systems, it facilitates the transfer of hydraulic fluid between components. Additionally, it is used in coolant systems to ensure the proper circulation of coolant throughout the engine. Its versatility makes it a valuable component in maintaining the efficiency and reliability of commercial trucks.

Safety Precautions

When working with the 3287421 Male Union, it is important to observe safety guidelines and precautions. Proper handling of the component is essential to prevent damage or injury. Adherence to manufacturer recommendations regarding installation, torque specifications, and maintenance practices is crucial to ensure safe and effective operation. Additionally, wearing appropriate personal protective equipment (PPE) such as gloves and safety glasses is recommended when performing maintenance or repairs.

About Cummins

Cummins is a leading manufacturer in the automotive and heavy-duty truck industry, with a reputation for producing high-quality components. Founded in 1919, the company has a long history of innovation and excellence. Cummins is committed to delivering reliable and efficient solutions for its customers, backed by a strong focus on research and development. The company’s dedication to quality and customer satisfaction has established it as a trusted name in the industry.

Cummins Male Union Part 3287421 in Engine Applications

The Cummins Male Union part number 3287421 is a critical component in various engine configurations, ensuring the seamless integration of fuel and air systems. This part is integral to the functionality of several Cummins engines, providing a robust connection point for fuel lines and other related components.

N14 MECHANICAL Engines

In the N14 MECHANICAL engine series, the Male Union part 3287421 plays a pivotal role in the engine’s fuel delivery system. It is designed to withstand the high pressures and demands of the engine’s operation, ensuring reliable performance and longevity. This part is typically used in conjunction with other fuel system components, facilitating the efficient transfer of fuel from the supply lines to the engine’s injectors.

The Male Union part 3287421 is engineered to meet the stringent requirements of the N14 MECHANICAL engine, providing a secure and leak-free connection. Its design ensures that it can handle the rigors of continuous operation, making it a dependable choice for maintaining the engine’s performance.

Grouping of Applications

The Cummins Male Union part 3287421 is not limited to a single engine model but is used across various engine configurations within the Cummins lineup. Its versatility and reliability make it a preferred choice for many engine applications, ensuring that fuel delivery systems operate smoothly and efficiently.

By integrating this part into the engine’s design, Cummins ensures that the fuel system remains robust and capable of handling the demands of heavy-duty operations. The Male Union part 3287421 is a testament to Cummins’ commitment to quality and performance, providing a critical connection point that supports the engine’s overall functionality.

Role of Part 3287421 Male Union in Engine Systems

The part 3287421 Male Union is instrumental in facilitating the seamless integration and operation of various engine components. Specifically, it plays a significant role in the following systems:

Compressor Systems

In compressor systems, the Male Union ensures a secure and leak-proof connection between different sections of the compressor. This is vital for maintaining the integrity of the compressed air flow. By providing a robust connection point, it allows for efficient transfer of compressed air from the compressor to other parts of the engine, ensuring that the compressor operates within its optimal parameters.

Air Systems

Within air systems, the Male Union is used to connect various air passages and ducts. This includes connections to air filters, intercoolers, and other air management components. The secure fitting provided by the Male Union helps in maintaining consistent air pressure and flow, which is essential for the efficient operation of the engine. It also aids in reducing the risk of air leaks, which can lead to performance issues.

EBM (Electric Blower Motor) Systems

In systems involving the Electric Blower Motor (EBM), the Male Union is used to connect the blower to the air intake and exhaust systems. This ensures that the airflow generated by the EBM is directed efficiently throughout the engine components. The Male Union’s design allows for easy maintenance and replacement, which is beneficial for the longevity and reliability of the EBM system.

Overall Engine Performance

By ensuring secure and efficient connections across these systems, the Male Union contributes to the overall performance and reliability of the engine. It helps in maintaining the desired airflow and pressure levels, which are essential for the engine’s optimal operation. Additionally, it simplifies the process of maintenance and repair, allowing for quicker and more effective interventions when needed.

Conclusion

The 3287421 Male Union by Cummins is a critical component in the fluid transfer systems of commercial trucks and engines. Its high-quality construction, reliable performance, and ease of maintenance make it a trusted choice for fleet operators and maintenance professionals. By ensuring secure and efficient connections, this part contributes to the overall performance and reliability of the engine, facilitating the seamless integration of fuel and air systems.


  1. Wolf-Henning Schneider, Pistons and Engine Testing, Springer Nature, 2016.

  2. Michael Trzesniowski, The Complete Vehicle, Springer Nature, 2023.

  3. Pawel Drozdziel, The Vehicle Diesel Engine Startup Process Operational and Environmental Aspects, Routledge, 2023.

SPECIFICATIONS

Package Dimensions
1.8 x 1.1 x 1.13 in
Weight
0.16 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.