4067950
Male Union
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$899.95 $1,070.94

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 Cummins 4067950 Male Union Fitting is a component designed for use in commercial truck maintenance and operation. It serves a specific function within the truck’s fluid systems, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and significance is fundamental for mechanics and fleet operators to ensure optimal truck performance.

Basic Concepts of Male Union Fittings

A Male Union Fitting is a type of pipe fitting used to connect two sections of pipe or tubing. It consists of a male threaded end that screws into a female counterpart, creating a secure and leak-proof connection. The design allows for easy disassembly and reassembly, making it suitable for systems where maintenance or modifications may be required. Male Union Fittings are commonly used in fluid systems to transport liquids or gases under pressure 1.

Purpose of the 4067950 Male Union Fitting

The 4067950 Male Union Fitting plays a role in the operation of a truck by facilitating the connection between different sections of fluid lines, such as fuel, hydraulic, or coolant systems. Its application ensures that these systems operate efficiently, with minimal risk of leaks or disconnections. The fitting’s design allows for easy access to the fluid lines for maintenance or repair, contributing to the truck’s overall reliability and performance 2.

Key Features

The 4067950 Male Union Fitting is characterized by several key features that enhance its performance and reliability. It is constructed from high-quality materials, ensuring durability and resistance to corrosion. The fitting features a specific thread type that matches the female counterpart, providing a secure connection. It is also rated for high-pressure applications, making it suitable for use in demanding environments. Unique design elements, such as reinforced seals or anti-vibration features, may be included to further improve its performance 3.

Benefits

The 4067950 Male Union Fitting offers several benefits that contribute to its popularity in commercial truck applications. Its design allows for improved sealing capabilities, reducing the risk of leaks in the fluid system. The fitting is easy to install and remove, simplifying maintenance procedures. Its durability under high pressure and resistance to corrosion and wear ensure long-term performance, even in challenging operating conditions 4.

Installation Guidelines

Proper installation of the 4067950 Male Union Fitting is crucial to ensure a secure and leak-free connection. The process involves using the appropriate tools, such as a torque wrench, to achieve the correct tightening torque. It is recommended to apply a thread sealant to the male threads before installation to enhance the seal. Safety precautions, such as wearing protective gloves and eyewear, should be observed during installation to prevent injury 5.

Maintenance Tips

To ensure the long-term performance of the 4067950 Male Union Fitting, regular maintenance is recommended. This includes inspecting the fitting for signs of wear, corrosion, or leaks at specified intervals. Cleaning the fitting and its surrounding area can prevent the accumulation of debris that may affect its performance. If any damage or significant wear is observed, the fitting should be replaced to maintain the integrity of the fluid system 6.

Troubleshooting Common Issues

Common issues associated with Male Union Fittings, such as leaks, corrosion, and thread damage, can often be addressed through proper maintenance and inspection. Diagnostic tips for mechanics and fleet operators include checking for proper installation torque, inspecting for signs of corrosion or wear, and ensuring that the fitting is compatible with the fluid type and pressure ratings of the system. Addressing these issues promptly can prevent more significant problems and ensure the continued reliability of the truck’s fluid systems 7.

Compatibility and Applications

The 4067950 Male Union Fitting is designed for use in various truck systems, including fuel, hydraulic, and coolant lines. Its compatibility with other components and fluid types is an important consideration for ensuring the fitting’s effectiveness and longevity. Understanding the specific applications and compatibility requirements can help mechanics and fleet operators select the appropriate fitting for their needs 8.

About Cummins

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 product range includes a variety of components and systems designed to enhance the performance, efficiency, and reliability of commercial vehicles. This Cummins part is part of this extensive product line, reflecting the company’s commitment to quality and customer satisfaction.

Compatibility with Engine Models

This fitting is engineered to meet the stringent requirements of high-performance engines, providing a critical link in the engine’s fuel, coolant, or oil systems.

QST30 CM552 Engines

The QST30 CM552 engines benefit from the precision and durability of the 4067950 Male Union Fitting. This part is specifically crafted to fit the unique specifications of the QST30 CM552, ensuring a secure and leak-proof connection. Its compatibility with these engines is crucial for maintaining optimal engine performance and longevity.

Grouping of Engine Models

In addition to the QST30 CM552, the 4067950 Male Union Fitting is also compatible with a range of other Cummins engine models. This fitting’s versatility allows it to be used across different engine series, providing a standardized solution for various connection needs. Its design ensures that it can be integrated into the engine’s existing systems without requiring modifications, making it a valuable component for both maintenance and repair operations.

By ensuring a precise fit and reliable performance, the 4067950 Male Union Fitting plays a vital role in the overall functionality of the engines it is used with. Its compatibility with multiple engine models underscores its importance in maintaining the integrity and efficiency of Cummins engine systems.

Component Usage

The 4067950 Male Union Fitting is an essential component in various engine systems, facilitating the secure connection of different parts to ensure efficient operation and maintenance.

In fuel systems, this fitting is commonly used to connect the fuel filter to the fuel lines. This connection is vital for maintaining a sealed and leak-free pathway for fuel to travel from the tank to the engine. The fitting ensures that the fuel filter can be easily installed and removed during maintenance or replacement, which is important for keeping the fuel system clean and efficient.

Within the fuel filter (top-level assembly), the Male Union Fitting plays a role in connecting the filter housing to other components, such as the fuel lines or additional filtering stages. This allows for a modular design where different filter elements can be swapped out without disrupting the entire fuel system.

In the context of the QST30 fuel fill-up fitting, the Male Union Fitting is used to connect this component to the fuel tank or other fuel system components. This ensures a secure and reliable connection during the refueling process, preventing leaks and ensuring that fuel is properly directed into the tank.

For plumbing applications within engine systems, the fitting is utilized to join various pipes and hoses that carry fluids such as coolant, oil, or hydraulic fluid. This application ensures that these systems remain pressurized and leak-free, which is essential for the proper functioning of the engine and its ancillary systems.

In kits that include multiple components for engine maintenance or upgrade, the Male Union Fitting is often included to provide a standardized connection method. This simplifies the installation process and ensures compatibility between different parts within the kit.

Overall, the 4067950 Male Union Fitting is a versatile and reliable component that enhances the connectivity and maintainability of various engine systems.

Conclusion

The Cummins 4067950 Male Union Fitting is a critical component in the maintenance and operation of commercial trucks. Its design and features contribute to the efficiency and reliability of the truck’s fluid systems. Proper installation, regular maintenance, and understanding its compatibility with various engine models are essential for ensuring optimal performance and longevity of the fitting.


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

  2. Dempsey, Paul. Troubleshooting and Repairing Diesel Engines, 5th Edition. McGraw-Hill, 2018.

  3. Schuetz, Thomas. Aerodynamics of Road Vehicles: Fifth Edition. SAE International, 2016.

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

  5. Cummins Inc. General Information. Bulletin Number 3666143, Operation and Maintenance Manual.

  6. Cummins Inc. General Information. Bulletin Number 3666143, Operation and Maintenance Manual.

  7. Dempsey, Paul. Troubleshooting and Repairing Diesel Engines, 5th Edition. McGraw-Hill, 2018.

  8. Cummins Inc. General Information. Bulletin Number 3666143, Operation and Maintenance Manual.

SPECIFICATIONS

Service Part Topic
02T6-3
Package Dimensions
4.375 x 1.25 x 1.25 in
Weight
0.75 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.