3400717
Male Union Elbow
Cummins®

The Male Union Elbow, identified by Part #3400717 and manufactured by Cummins, is a component integral to the fluid systems of commercial trucks. Cummins is recognized for its commitment to quality and innovation in engine and component manufacturing. This part is designed to facilitate the efficient transfer of fluids within a truck’s system, ensuring the smooth operation of various subsystems.

Basic Concepts and Functionality

A Male Union Elbow is a fitting used in fluid systems to connect two pipes at an angle, allowing for a change in direction of the fluid flow. It operates by providing a secure, leak-proof connection that can be easily disassembled for maintenance or repair. In the context of a truck’s system, it plays a role in maintaining the integrity of fluid dynamics by ensuring that fluids such as coolant, fuel, or hydraulic fluid are directed efficiently through the system without leaks or undue resistance ¹.

Purpose of the 3400717 Male Union Elbow

This Cummins part is specifically designed to serve as a pivotal component in the fluid systems of commercial trucks. Its application spans across various truck systems, including but not limited to, the engine cooling system, fuel delivery system, and hydraulic systems. By facilitating the directional change in fluid flow, it contributes to the overall efficiency and reliability of these systems.

Key Features

The 3400717 Male Union Elbow is characterized by several key features that enhance its performance and durability. It is constructed from high-quality materials, ensuring resistance to corrosion and wear. Its design specifications include precise threading and sealing surfaces, which contribute to a secure and leak-proof connection. Additionally, it may feature unique attributes such as reinforced walls or specialized coatings to further improve its resilience in demanding environments.

Benefits

The advantages provided by this part include improved system efficiency through reliable fluid transfer, enhanced reliability due to its robust construction, and ease of installation and maintenance thanks to its union design, which allows for quick disassembly and reassembly without the need for additional tools.

Installation and Usage

Proper installation of the 3400717 Male Union Elbow involves several preparatory steps to ensure a secure and efficient connection. It is important to clean the mating surfaces and apply the appropriate sealant or thread compound as specified by the manufacturer. The use of proper tools, such as a torque wrench, is recommended to achieve the correct tightening specifications, ensuring a leak-proof seal without over-tightening, which could damage the fitting.

Troubleshooting and Maintenance

Common issues with the 3400717 Male Union Elbow may include leaks, difficulty in disassembly, or corrosion. Diagnostic tips involve checking for proper installation, ensuring that all connections are tight and sealed correctly, and inspecting for signs of wear or damage. Regular maintenance practices, such as cleaning and inspecting the fitting for corrosion or wear, can help ensure its longevity and optimal performance.

Safety Considerations

When working with the 3400717 Male Union Elbow, it is important to observe safety protocols to prevent accidents and ensure safe operation. This includes wearing appropriate personal protective equipment (PPE), ensuring that the system is depressurized before beginning work, and following all manufacturer guidelines for installation and maintenance. Additionally, being aware of the potential for fluid spills and taking steps to contain and clean up any spills promptly can help maintain a safe working environment.

Cummins Overview

Cummins is a leading manufacturer in the automotive and heavy-duty truck industry, with a history of innovation and quality in engine and component manufacturing. Their reputation is built on a commitment to developing reliable, efficient, and durable products that meet the demanding requirements of commercial vehicle applications. Cummins’ focus on quality and customer satisfaction has established them as a trusted name in the industry, with a wide range of products designed to enhance the performance and reliability of commercial trucks ².

Cummins Male Union Elbow 3400717 Compatibility

The Cummins Male Union Elbow part number 3400717 is designed to fit seamlessly with a variety of Cummins engine models. This part is essential for ensuring proper fluid flow and connection in the engine’s system. Below is a detailed overview of the engine compatibility for this specific part.

ISM Series

• ISM CM570: The Male Union Elbow 3400717 is compatible with the ISM CM570 engine, ensuring a secure connection in the fluid system.

ISX Series

• ISX12 CM2350 X102: This part fits the ISX12 CM2350 X102 engine, providing a reliable connection for fluid lines.
• ISX12/ISX11.9 CM2250: The 3400717 part is also suitable for the ISX12/ISX11.9 CM2250 engine, ensuring proper fluid management.
• ISX15 CM2250: Compatible with the ISX15 CM2250 engine, this elbow ensures a secure and leak-free connection.
• ISX15 CM2350 X101: The Male Union Elbow fits the ISX15 CM2350 X101 engine, maintaining the integrity of the fluid system.

L Series

• L10 GAS: The part 3400717 is compatible with the L10 GAS engine, ensuring proper fluid flow.
• L10 MECHANICAL: This elbow fits the L10 MECHANICAL engine, providing a secure connection for fluid lines.

M Series

• M11 CELECT PLUS: The Male Union Elbow 3400717 is compatible with the M11 CELECT PLUS engine, ensuring a reliable connection.
• M11 MECHANICAL: This part fits the M11 MECHANICAL engine, maintaining the integrity of the fluid system.

QSG/QSX Series

• QSG12/X12 CM2350 G110: The 3400717 part is compatible with the QSG12/X12 CM2350 G110 engine, ensuring proper fluid management.
• QSX11.9 CM2250 ECF: This elbow fits the QSX11.9 CM2250 ECF engine, providing a secure connection for fluid lines.
• QSX15 CM2250: The Male Union Elbow is compatible with the QSX15 CM2250 engine, ensuring a reliable connection.
• QSX15 CM2250 ECF: This part fits the QSX15 CM2250 ECF engine, maintaining the integrity of the fluid system.
• QSX15 CM2350 X105: The 3400717 part is compatible with the QSX15 CM2350 X105 engine, ensuring proper fluid flow.

X Series

• X15 CM2350 X116B: The Male Union Elbow 3400717 is compatible with the X15 CM2350 X116B engine, ensuring a secure connection for fluid lines.

This compatibility ensures that the Male Union Elbow 3400717 can be used across a wide range of Cummins engines, providing a reliable and secure connection for fluid lines.

Role of Part 3400717 Male Union Elbow in Engine Systems

The 3400717 Male Union Elbow is an essential component in the efficient operation of various engine systems. It facilitates the secure connection between different parts, ensuring smooth fluid transfer and maintaining system integrity.

Integration with Cooler and Engine Oil Systems

In cooler and engine oil systems, the 3400717 Male Union Elbow plays a significant role by connecting the cooler to the engine oil lines. This connection is vital for the proper circulation of engine oil, which is necessary for cooling and lubricating engine components. The elbow ensures that the oil flows efficiently from the cooler back into the engine, helping to maintain optimal engine temperature and performance.

Function in Full Flow Oil Systems

Within full flow oil systems, the 3400717 Male Union Elbow is used to connect the oil filter to the main oil lines. This connection is important for the uninterrupted flow of oil through the filter, ensuring that contaminants are effectively removed before the oil re-enters the engine. The elbow’s design allows for easy installation and removal, facilitating regular maintenance and filter changes.

Application in Head and Oil Filter Cooler Systems

When integrated into head and oil filter cooler systems, the 3400717 Male Union Elbow connects the lubricating oil filter head to the cooler. This setup is essential for maintaining the temperature of the lubricating oil, which is critical for the longevity and efficiency of the engine. The elbow ensures a leak-free connection, preventing oil loss and maintaining system pressure.

Use in Lubricating Oil Filter Head Kit

In a lubricating oil filter head kit, the 3400717 Male Union Elbow is often used to connect various components within the kit. This includes linking the filter head to the cooler and other system components. The elbow’s robust design ensures that these connections remain secure under varying pressure conditions, contributing to the overall reliability of the lubrication system.

Overall, the 3400717 Male Union Elbow is a versatile component that enhances the functionality and efficiency of engine systems by providing reliable connections between critical parts.

Conclusion

The 3400717 Male Union Elbow by Cummins is a critical component in the fluid systems of commercial trucks, designed to ensure efficient and reliable fluid transfer. Its compatibility with a wide range of Cummins engines, coupled with its robust construction and ease of maintenance, makes it an invaluable part for maintaining the integrity and performance of engine systems. Proper installation, regular maintenance, and adherence to safety protocols are essential for maximizing the benefits of this part.