3684202
Banjo Connector Screw
Cummins®

The 3684202 Banjo Connector Screw, manufactured by Cummins, is a component designed for use in commercial truck applications. Cummins, a well-established name in the industry, produces a range of parts and engines known for their reliability and performance. This Cummins part is significant in the context of truck maintenance and operation, particularly in systems requiring precise fluid transfer.

Basic Concepts and Functionality

A Banjo Connector Screw is a type of fitting used in fluid transfer systems. It consists of a bolt with an integrated banjo fitting, which is a small, flat, circular component with ports for hoses or pipes. This fitting allows for the connection of hydraulic lines or fuel lines to various components within a truck’s system. The banjo fitting is clamped between two surfaces, creating a seal that prevents leaks. The screw itself provides the necessary tension to ensure a secure connection ¹.

Purpose of the 3684202 Banjo Connector Screw

The 3684202 is specifically designed to facilitate the transfer of fluids in hydraulic and fuel systems within commercial trucks. It plays a role in ensuring that these systems operate efficiently by providing a reliable connection point for hoses and pipes. Its application in hydraulic systems allows for the transmission of power through fluid pressure, while in fuel systems, it ensures that fuel is delivered to the engine under the correct pressure and flow rate ².

Key Features

The design of the 3684202 incorporates several features that make it suitable for heavy-duty applications. It features a specific thread type that ensures compatibility with standard fittings, enhancing its versatility. The material used in its construction is chosen for its durability, capable of withstanding the high pressures and temperatures encountered in truck systems. Additionally, the sealing mechanisms integrated into the banjo fitting are designed to provide a tight seal, preventing leaks and ensuring the integrity of the fluid transfer system ³.

Benefits

Using the 3684202 offers several advantages. Its design contributes to improved sealing, reducing the risk of leaks that can lead to system failures. The ease of installation is another benefit, as the screw-type fitting allows for quick and straightforward connections. Furthermore, the material properties of the screw provide resistance to corrosion and high pressures, enhancing its longevity and reliability in demanding environments.

Installation and Usage

Proper installation of the 3684202 is crucial for its effective operation. It should be tightened to the manufacturer’s specified torque to ensure a secure fit without over-tightening, which could damage the fitting or the connected components. Compatibility with other components in the system must be verified to ensure a proper fit and function. Following these guidelines helps maintain the integrity of the fluid transfer system.

Troubleshooting and Maintenance

Common issues with Banjo Connector Screws include leaks, which can often be traced to improper installation or wear and tear on the fitting. Regular inspection and maintenance can help identify potential problems before they lead to system failures. Cleaning the fitting and ensuring that all connections are tight can extend the lifespan of the component. In cases where leaks persist, replacing the gasket or the entire fitting may be necessary.

Safety Considerations

When working with Banjo Connector Screws, it is important to follow safety practices to avoid injuries and system damage. This includes checking the pressure system for any signs of wear or damage before making connections. Proper handling procedures should be followed to avoid leaks, which can be hazardous in environments where flammable fluids are present. Using the correct tools and following torque specifications are also critical to ensuring safe and effective operation.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for innovation, quality, and reliability in the commercial truck industry. Its product range includes engines and components designed to meet the demanding requirements of commercial vehicles, ensuring efficient and reliable performance.

Cummins Engine Compatibility with Part 3684202

The 3684202, manufactured by Cummins, is a versatile component that fits into a variety of their engine models. This part is integral for securing hoses and ensuring leak-proof connections in the engine’s fuel and fluid systems.

ISC Series Engines

• ISC CM2150
• ISC8.3 CM2250
• ISL CM2150
• ISL9 CM2150 SN
• ISL9 CM2250

These ISC and ISL series engines benefit from the 3684202, ensuring robust connections for various fluid lines.

ISX Series Engines

• ISX CM871
• ISX12 CM2350 X102
• ISX12 G CM2180 EJ
• ISX12/ISX11.9 CM2250
• ISX15 CM2250
• ISX15 CM2350 X101

The ISX series engines, known for their high performance and durability, utilize the 3684202 to maintain secure and reliable fluid connections.

ISZ Series Engines

• ISZ13 CM2150 Z105

The ISZ13 CM2150 Z105 engine incorporates the 3684202 for its fluid system integrity.

QSB Series Engines

• QSB6.7 CM2250
• QSB6.7 CM2350 B105

The QSB series engines, designed for versatility and efficiency, use the 3684202 to ensure secure hose connections.

QSC and QSL Series Engines

• QSC8.3 CM850(CM2850)
• QSC9 CM2250/QSL9 CM2250
• QSL9 CM2250
• QSL9 CM2350 L102

The QSC and QSL series engines, which include both the QSC8.3 CM850(CM2850) and the QSL9 models, rely on the 3684202 for maintaining fluid system integrity.

QSX Series Engines

• QSX11.9 CM2250 ECF
• QSX15 CM2250
• QSX15 CM2250 ECF
• QSX15 CM2350 X105

The QSX series engines, known for their robust performance, utilize the 3684202 to ensure reliable and secure hose connections.

Role of Part 3684202 Banjo Connector Screw in Various Engine Systems

The 3684202 is an essential component in the efficient operation of several engine systems. Its primary function is to facilitate secure and leak-proof connections in fluid transfer pathways. Here’s how it integrates with various components:

Compressor and Air Systems

In compressor and air systems, the 3684202 ensures that the air lines are tightly sealed. This is vital for maintaining the pressure integrity required for efficient compressor operation. Any leakage in these lines can lead to a drop in system efficiency and potential compressor failure.

Hardware Kit Integration

When included in a hardware kit, the 3684202 plays a role in assembling and securing various components. It provides a reliable connection point that can withstand the vibrations and pressures typical in engine environments.

Lever and Rocker Mechanisms

In systems involving levers and rockers, such as those found in valvetrains, the 3684202 is used to connect hydraulic lines. This ensures that the hydraulic fluid can flow without leaks, which is essential for the precise operation of these mechanical components.

Plumbing Systems

Within the broader context of engine plumbing, the 3684202 is used to connect various tubes and hoses. Its design allows for easy installation and removal while maintaining a secure seal, which is important for the longevity and reliability of the plumbing system.

Turbocharger Applications

In turbocharger systems, the 3684202 is utilized in both the turbocharger coolant supply tube and the turbocharger coolant drain tube. It ensures that the coolant flows efficiently through these tubes without any leaks, which is essential for maintaining optimal turbocharger temperature and performance.

Turbocharger Plumbing

For the overall turbocharger plumbing, the 3684202 is a key component in connecting the turbocharger coolant supply tube to the engine’s coolant system. This connection is vital for the effective management of turbocharger temperatures, directly influencing the turbocharger’s efficiency and lifespan.

Conclusion

The 3684202 Banjo Connector Screw is a critical component in the maintenance and operation of commercial trucks, particularly in systems requiring precise fluid transfer. Its design and features make it suitable for heavy-duty applications, ensuring reliable and secure connections in various engine systems. Proper installation, regular maintenance, and adherence to safety practices are essential for maximizing the benefits of this Cummins part.