3917120
Tube Clamp
Cummins®

The Cummins 3917120 Tube Clamp is a component designed to secure and connect tubing systems in commercial trucks. Its role is significant in maintaining the integrity and efficiency of various truck systems by ensuring that tubing connections remain secure under operational conditions.

Basic Concepts of Tube Clamps

Tube clamps are devices used to hold tubing in place, providing a secure connection without the need for welding or soldering. They are widely utilized in automotive and industrial applications to join tubing systems, allowing for easy assembly, disassembly, and maintenance. Tube clamps function by compressing the tubing between two surfaces, creating a tight seal that prevents leaks and ensures the tubing remains in the desired position ¹.

Purpose of the Cummins 3917120 Tube Clamp

The Cummins 3917120 Tube Clamp is specifically designed for use in commercial trucks, where it plays a role in securing tubing connections across various systems and components. Its application includes but is not limited to, fuel lines, hydraulic systems, and coolant passages. By providing a reliable connection, the tube clamp contributes to the overall efficiency and safety of the truck’s operation ².

Key Features

The Cummins 3917120 Tube Clamp is constructed from durable materials, ensuring it can withstand the rigors of commercial truck environments. Its design includes features such as a corrosion-resistant coating, which enhances longevity, and a robust clamping mechanism that ensures a secure fit. Additionally, the clamp is engineered to accommodate a range of tubing sizes, offering versatility in application ³.

Benefits of Using the Cummins 3917120 Tube Clamp

Utilizing the Cummins 3917120 Tube Clamp offers several advantages. It contributes to improved system integrity by providing a leak-proof connection, simplifies the installation process due to its design, and offers long-term reliability, reducing the need for frequent replacements or repairs.

Installation Process

Installing the Cummins 3917120 Tube Clamp involves several steps to ensure a secure fit. First, the tubing should be cleaned and inspected for any damage. The clamp is then positioned around the tubing, and the tightening mechanism is engaged to compress the clamp onto the tubing. Tools required may include a wrench for tightening and a cleaning brush for preparing the tubing. It is important to follow the manufacturer’s guidelines for torque specifications to avoid over-tightening, which could damage the tubing or the clamp.

Troubleshooting Common Issues

Common issues with tube clamps, such as leaks or improper fitting, can often be traced back to incorrect installation or environmental factors. To address leaks, ensure the clamp is properly tightened and that the tubing is free from debris. If the clamp does not fit securely, verify that it is the correct size for the tubing and that there are no obstructions preventing a snug fit.

Maintenance Tips

Regular maintenance of the Cummins 3917120 Tube Clamp is key to ensuring continued performance and longevity. This includes periodic inspection for signs of wear or corrosion, cleaning the clamp and tubing to remove any buildup, and tightening the clamp as necessary to maintain a secure connection. Adhering to these maintenance practices can help prevent issues and extend the lifespan of the clamp.

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 a comprehensive product range, Cummins has established a reputation for quality and reliability in the commercial truck industry. The company’s commitment to excellence is reflected in its products, including the Cummins 3917120 Tube Clamp, which is designed to meet the demanding requirements of commercial truck applications.

Compatibility with Cummins Engines

The Tube Clamp 3917120, manufactured by Cummins, is designed to secure and stabilize various tubes and hoses within the engine’s system. This part is engineered to fit seamlessly with a range of Cummins engines, ensuring optimal performance and reliability. Below is a detailed overview of its compatibility with specific engine models:

6B5.9 Engine

The Tube Clamp 3917120 is compatible with the 6B5.9 engine. This part is essential for maintaining the integrity of the engine’s cooling system, ensuring that all coolant lines and related components are securely fastened.

QSB5.9 CM850 and QSB6.7 M CM2250 Engines

For the QSB5.9 CM850 and QSB6.7 M CM2250 engines, the Tube Clamp 3917120 is used to secure various fluid lines, including oil and coolant lines. This ensures that these critical lines remain in place under all operating conditions, preventing leaks and maintaining system efficiency.

QSM11 CM570 Engine

In the QSM11 CM570 engine, the Tube Clamp 3917120 is utilized to secure exhaust system components, ensuring that all exhaust lines are properly fastened. This is crucial for maintaining the structural integrity of the exhaust system and preventing any potential leaks that could compromise engine performance.

Grouping by Application

The Tube Clamp 3917120 is grouped by its application across different engine models:

• Cooling and Fluid Lines: Compatible with 6B5.9, QSB5.9 CM850, and QSB6.7 M CM2250 engines.
• Exhaust System: Specifically designed for use in the QSM11 CM570 engine.

This part’s versatility and compatibility with multiple engine models underscore its importance in maintaining the overall functionality and reliability of Cummins engines.

Role of Part 3917120 Tube Clamp in Engine Systems

The 3917120 Tube Clamp is an essential component in various engine systems, ensuring secure and efficient connections between different parts. Its application spans across several critical systems, including the cooler, marine gear oil, keel cooler plumbing, and oil cooler.

Cooler Systems

In cooler systems, the 3917120 Tube Clamp is utilized to maintain a tight seal between the tubing and the cooler itself. This ensures that the coolant or other fluids flow smoothly without any leaks, which is vital for maintaining the engine’s operating temperature within safe limits. The clamp’s robust design helps withstand the pressure and temperature variations commonly encountered in these systems.

Marine Gear Oil Systems

For marine gear oil systems, the 3917120 Tube Clamp plays a significant role in connecting the oil lines to the gear housing. This connection is paramount for ensuring that the gear oil is delivered consistently to the moving parts, reducing friction and wear. The clamp’s durability is particularly important in marine environments, where corrosion and exposure to saltwater can compromise less robust fittings.

Keel Cooler Plumbing

In keel cooler plumbing, the 3917120 Tube Clamp is employed to secure the connections between the plumbing lines and the keel cooler. This system relies on seawater to cool the engine, and any leak in the plumbing can lead to catastrophic failure. The clamp ensures that the connections remain intact, even under the dynamic conditions experienced by vessels in open water.

Oil Cooler Systems

For oil cooler systems, the 3917120 Tube Clamp is used to connect the oil lines to the cooler, facilitating the efficient transfer of heat away from the engine oil. This is essential for maintaining the oil’s viscosity and performance characteristics. The clamp’s ability to provide a leak-free connection is key to the overall efficiency and reliability of the oil cooling system.

Conclusion

In summary, the Cummins 3917120 Tube Clamp is a versatile and reliable component that enhances the performance and safety of various engine systems by ensuring secure and leak-free connections. Its compatibility with multiple Cummins engine models and its application across critical systems underscore its importance in maintaining the overall functionality and reliability of commercial trucks.