4008011
Male Union Tee
Cummins®

The Male Union Tee, identified by part number 4008011, is a component manufactured by Cummins, a prominent name in the automotive and heavy-duty truck industry. This part is integral to the fluid systems of commercial trucks, facilitating the efficient distribution and management of fluids within the vehicle. The Male Union Tee is designed to meet the demanding requirements of heavy-duty applications, ensuring reliable performance in various truck systems ¹.

Basic Concepts and Functionality

A Male Union Tee is a fitting used in fluid systems to connect three different lines, allowing for the branching or merging of fluid pathways. It consists of a central body with three threaded ports: one male end that connects to a pipe or hose, and two female ends that accept connections from other components. The design allows for the redirection or division of fluid flow, which is crucial in systems where multiple components require fluid supply or return. The interaction between the threaded connections ensures a secure seal, preventing leaks and maintaining system integrity ².

Purpose and Role in Truck Operation

In the context of a commercial truck, the Male Union Tee serves to enhance the efficiency and reliability of fluid systems. It is commonly used in applications such as hydraulic systems, fuel lines, and coolant circuits. By providing a means to connect multiple lines, the Male Union Tee allows for the streamlined distribution of fluids to various parts of the truck, contributing to the overall performance and functionality of the vehicle ³.

Key Features

The 4008011 Male Union Tee by Cummins is characterized by several key features that enhance its performance and durability. These include a robust material composition, typically a durable metal alloy, which ensures resistance to corrosion and wear. The thread type is designed to provide a secure connection, while the pressure ratings indicate the maximum pressure the fitting can withstand without failure. The design specifications, such as the size and shape of the ports, are tailored to fit specific applications within the truck, ensuring compatibility and ease of installation.

Benefits

Utilizing the Cummins 4008011 Male Union Tee offers several advantages. The design of the fitting contributes to improved system efficiency by ensuring a secure and leak-free connection. The ease of installation is another benefit, as the threaded connections allow for straightforward attachment to pipes and hoses. Additionally, the durability of the material and the design of the fitting make it resistant to the harsh conditions encountered in heavy-duty truck applications, leading to reduced maintenance requirements and enhanced longevity of the truck’s systems.

Installation and Usage

Proper installation of the Male Union Tee is crucial for ensuring a secure and efficient connection within the truck’s system. It is recommended to use the appropriate tools and equipment to achieve a tight seal without over-tightening, which could damage the threads. Best practices include cleaning the threads and applying a compatible thread sealant to prevent leaks. Following these guidelines will help maintain the integrity of the fluid system and ensure the reliable operation of the truck.

Troubleshooting and Maintenance

Common issues with the Male Union Tee may include leaks due to improper installation or wear over time. Troubleshooting involves inspecting the connections for tightness and signs of corrosion or damage. Regular maintenance, such as checking for leaks and ensuring the connections are secure, can help prevent issues and extend the life of the fitting. When performing inspections, it is important to follow the manufacturer’s recommendations for replacement intervals to maintain system performance.

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 commitment to quality, Cummins has established itself as a trusted name in the automotive and heavy-duty truck industry. The company’s approach to manufacturing emphasizes durability, efficiency, and reliability, ensuring that its components, like the 4008011 Male Union Tee, meet the high standards required for heavy-duty applications. Cummins is also known for its customer service and support, providing resources and assistance to ensure the optimal performance of its products.

Compatibility with Engine Models

The Cummins Male Union Tee part number 4008011 is a versatile component that can be integrated into various engine models. This part is designed to facilitate the connection of different fluid lines, ensuring a secure and leak-proof interface. Here is a detailed look at its compatibility with specific engine models:

QSK50 CM2350 K108 and QSK78 CM500

The QSK50 CM2350 K108 and QSK78 CM500 engines are part of Cummins’ QSK series, known for their robust performance and reliability in heavy-duty applications. The Male Union Tee part 4008011 is engineered to fit seamlessly within the fluid systems of these engines. It provides a critical junction point for fluid lines, ensuring that the system maintains optimal pressure and flow.

QSV91-G4 CM558/CM700 V102

The QSV91-G4 CM558/CM700 V102 engines are another example where the Male Union Tee part 4008011 proves its value. These engines are designed for demanding applications, and the integration of the Male Union Tee ensures that the fluid pathways remain intact and efficient.

QSV91G

The QSV91G engine also benefits from the use of the Male Union Tee part 4008011. This engine is part of Cummins’ lineup of high-efficiency, low-emission engines, and the Male Union Tee plays a crucial role in maintaining the integrity of its fluid systems.

Role of Part 4008011 Male Union Tee in Engine Systems

The 4008011 Male Union Tee is an essential component in various engine systems, facilitating the connection and distribution of fluids and gases. Its role can be observed in the following systems:

Crankcase Breather System

In the crankcase breather system, the Male Union Tee allows for the efficient venting of gases from the crankcase. It connects the breather hose to the intake tract, ensuring that any gases produced within the crankcase are safely directed away, maintaining optimal engine performance and reducing the risk of contamination.

Plumbing and Turbocharger Oil System

Within the plumbing and turbocharger oil systems, the Male Union Tee plays a significant role in the distribution of oil. It enables the connection of multiple oil lines, ensuring a steady and regulated flow of oil to the turbocharger. This is vital for the lubrication and cooling of the turbocharger, enhancing its efficiency and longevity.

Vent System

In vent systems, the Male Union Tee is utilized to manage the flow of gases or fluids from various sources. It allows for the merging of different vent lines, directing the output to a single point. This setup is particularly useful in complex engine arrangements where multiple components require venting.

Engine Coolant System

The Male Union Tee is also employed in the engine coolant system. It facilitates the connection of coolant lines from the engine block, radiator, and other components, ensuring a consistent flow of coolant throughout the system. This helps in maintaining the engine’s temperature within safe operating limits, preventing overheating and potential damage.

Conclusion

The Cummins 4008011 Male Union Tee is a critical component in the fluid systems of commercial trucks and heavy-duty engines. Its robust design, ease of installation, and compatibility with various engine models make it a reliable choice for maintaining the efficiency and reliability of fluid systems. Proper installation, regular maintenance, and adherence to manufacturer guidelines are essential for ensuring the optimal performance and longevity of this Cummins part.