4935801
Tube Nut
Cummins®

The 4935801 Tube Nut is a component manufactured by Cummins, designed for use in commercial trucks. This article provides an overview of the Tube Nut, its function, key features, benefits, and maintenance tips.

Basic Concepts of a Tube Nut

A Tube Nut is a type of fastener used to secure tubing and piping systems. It operates by threading onto the end of a tube, creating a secure and leak-proof connection. Tube Nuts are commonly used in various industries, including automotive, due to their reliability and ease of installation ¹.

Role of the 4935801 Tube Nut in Truck Operation

This Cummins part plays a role in the truck’s fluid systems by securing tubes and pipes. It ensures that connections remain tight and leak-free, which is important for the proper functioning of systems such as fuel lines, brake systems, and hydraulic systems ².

Key Features

• Designed for high-strength applications
• Made from durable materials to withstand harsh conditions
• Easy to install and remove
• Compatible with standard tubing sizes used in commercial trucks

Benefits

• Provides a secure and leak-proof connection
• Enhances the reliability of fluid systems
• Reduces the risk of fluid leaks, which can lead to system failures
• Contributes to the overall safety and performance of the truck

Troubleshooting and Maintenance

Regular inspection of Tube Nuts is recommended to ensure they remain secure and free of corrosion. Signs of wear or damage should be addressed promptly to prevent leaks. Maintenance tips include:

• Checking for tightness at regular intervals
• Replacing Tube Nuts if they show signs of wear or corrosion
• Ensuring proper torque is applied during installation

Compatibility with Cummins Engines

This part, manufactured by Cummins, is designed to fit a variety of Cummins engines. Below is a detailed overview of the engines with which this tube nut is compatible:

ISB/ISD Series

• ISB/ISD 4.5 CM2150 B119
• ISB/ISD 6.7 CM2150 SN

ISBE Series

• ISBE CM2150
• ISBE4 CM850

ISL Series

• ISL9 CM2150 SN
• ISL9.5 CM2880 L138

ISM Series

• ISM11 CM876 SN

ISZ Series

• ISZ13 CM2150 Z105

Role of 4935801 Tube Nut in Engine Systems

This part is an essential component in various engine systems, particularly within the aftertreatment device and aftertreatment system. Its primary function is to ensure secure and leak-free connections between different components, facilitating the efficient operation of the system.

In the aftertreatment device, the 4935801 Tube Nut is used to connect the diesel exhaust fluid (DEF) lines. This connection is vital for the proper delivery of DEF to the doser injector. The doser injector, in turn, sprays DEF into the exhaust stream to reduce nitrogen oxides (NOx) emissions, a key function of the aftertreatment system.

Within the aftertreatment system, the Tube Nut plays a role in maintaining the integrity of the DEF arrangement. It ensures that the fluid doser can operate effectively by providing a reliable connection point for the DEF lines. This is important for the overall performance and compliance of the system with emissions regulations.

The Tube Nut also contributes to the stability of the connections in the aftertreatment system. By securing the DEF lines to various components, it helps prevent leaks and ensures that the DEF is delivered at the correct pressure and flow rate. This is essential for the efficient operation of the system and the reduction of harmful emissions ³.

Conclusion

The 4935801 Tube Nut is a critical component in ensuring the secure and efficient connection of DEF lines within the aftertreatment device and aftertreatment system. Its role in maintaining system integrity and performance cannot be overstated.