3905860
Banjo Connector Screw
Cummins®

The 3905860 Banjo Connector Screw, manufactured by Cummins, is a specialized component used in commercial trucks. It is integral to the hydraulic and fuel systems of these vehicles, ensuring the efficient transfer of fluids and contributing to the overall performance and reliability of the truck ¹.

Basic Concepts of Banjo Connector Screws

A Banjo Connector Screw is a type of fitting used in fluid systems to seal and direct the flow of liquids or gases. It typically consists of a bolt with a hollow body and a sealing washer. The screw plays a role in creating a secure connection between pipes or hoses and other components within the system. Its design allows for the precise control of fluid dynamics, ensuring that systems operate within desired parameters ².

Purpose of the 3905860 Banjo Connector Screw

The 3905860 Banjo Connector Screw is designed for specific applications within the hydraulic and fuel systems of trucks. It facilitates the connection between various components, allowing for the smooth and efficient transfer of fluids. This part contributes to the truck’s efficiency and performance by maintaining the integrity of the fluid pathways and ensuring that systems operate under optimal conditions ³.

Key Features

The 3905860 Banjo Connector Screw boasts several key features that enhance its functionality and durability. It is constructed from high-quality materials, ensuring resistance to corrosion and wear. The screw features a specific thread type that provides a secure fit, reducing the risk of leaks. Additionally, it incorporates advanced sealing mechanisms to maintain a tight seal, even under high pressure. These features collectively contribute to the part’s reliability and longevity.

Benefits

Using the 3905860 Banjo Connector Screw offers several benefits. It improves the performance of fluid systems by ensuring a consistent and secure flow of fluids. The enhanced sealing capabilities reduce the likelihood of leaks, which can lead to system inefficiencies or failures. Furthermore, the increased reliability of the screw contributes to the overall operation of the truck, minimizing downtime and maintenance costs.

Installation Process

Proper installation of the 3905860 Banjo Connector Screw is vital for its effective function. The process involves several steps: First, ensure that the mating surfaces are clean and free of debris. Next, apply the appropriate sealant to the threads of the screw. Carefully thread the screw into the designated port, ensuring it is tightened to the manufacturer’s specified torque. Finally, perform a pressure test to confirm the seal integrity. Following these steps ensures a secure and effective installation.

Troubleshooting and Maintenance

Common issues with Banjo Connector Screws include leaks and corrosion. To address these, regularly inspect the screw for signs of wear or damage. If a leak is detected, the screw may need to be tightened or replaced. Corrosion can be mitigated by using screws made from corrosion-resistant materials and applying protective coatings. Periodic checks and timely replacements are recommended to ensure the longevity and optimal performance of the 3905860 Banjo Connector Screw.

Cummins: Manufacturer Overview

Cummins is a renowned manufacturer with a rich history in the automotive industry. The company is well-known for its contribution to commercial truck components, including engines, transmissions, and various parts. Cummins is committed to quality and innovation, ensuring that their products meet the demanding requirements of the commercial trucking industry. Their dedication to excellence is evident in the design and performance of components like the 3905860 Banjo Connector Screw.

Cummins Engine Compatibility with Part 3905860

The part 3905860, a Banjo Connector Screw, is designed to fit a variety of Cummins engines. This component is crucial for maintaining the integrity of fluid connections within the engine system. Here is a breakdown of the engines that are compatible with this part:

4B3.9 and 6B5.9 Engines

The 4B3.9 and 6B5.9 engines are part of the Cummins B Series engines, known for their reliability and performance in various applications. The Banjo Connector Screw ensures secure connections for hydraulic or fuel lines, which is essential for the smooth operation of these engines.

6C8.3 and B4.5 Engines

The 6C8.3 and B4.5 engines are also part of the Cummins B Series. These engines are designed for durability and efficiency, and the Banjo Connector Screw plays a vital role in maintaining the fluid system’s integrity.

B5.9 CM2670 B166C and F4.5 CM2620 F141C Engines

These engines, B5.9 CM2670 B166C and F4.5 CM2620 F141C, are part of the Cummins C Series. The Banjo Connector Screw is essential for these engines, ensuring that fluid connections are tight and secure, which is critical for performance and longevity.

L8.9, L8.9 L121, L9.3 L105, and L9.5 L117 Engines

The L8.9, L8.9 L121, L9.3 L105, and L9.5 L117 engines are part of the Cummins L Series. These engines are known for their power and efficiency. The Banjo Connector Screw is a key component in maintaining the fluid system’s integrity, ensuring that connections remain secure under various operating conditions.

QSB3.9 30 CM550 and QSB5.9 30 CM550 Engines

The QSB3.9 30 CM550 and QSB5.9 30 CM550 engines are part of the Cummins QSB Series. These engines are designed for heavy-duty applications and require robust components to maintain performance. The Banjo Connector Screw is essential for these engines, ensuring that fluid connections are secure and reliable.

By ensuring that the Banjo Connector Screw is properly installed and maintained, engine operators can help maintain the performance and longevity of these Cummins engines.

Role of Part 3905860 Banjo Connector Screw in Engine Systems

The 3905860 Banjo Connector Screw is integral to the efficient operation of various engine systems. It facilitates secure connections in the fuel system, ensuring that fuel is delivered consistently and without leaks. This component is often found in the fuel pump coupling, where it maintains a tight seal between the fuel pump and the fuel lines, thus preventing fuel loss and ensuring optimal fuel pressure.

In the context of fuel filter installations, the Banjo Connector Screw plays a significant role. Whether it is part of a fuel filter kit or a standalone fuel filter, this screw ensures that the filter is properly sealed to the fuel lines. This is essential for maintaining clean fuel delivery to the engine, which is vital for performance and longevity.

Furthermore, the Banjo Connector Screw is used in fuel filter plumbing to connect various components such as the fuel filter head kit and the fuel filter location. Its role extends to the fuel transfer pump plumbing, where it ensures that the pump can operate efficiently without any fuel escaping from the connections.

In recirculation systems, this screw helps in maintaining the integrity of the fuel recirculation path, ensuring that excess fuel is properly returned to the tank without any leaks. Additionally, in exhaust systems, although less common, the Banjo Connector Screw can be used in fuel shutoff valve kits to ensure secure connections that can be reliably opened and closed.

Overall, the 3905860 Banjo Connector Screw is a versatile component that enhances the reliability and efficiency of fuel delivery and management within engine systems.

Conclusion

The 3905860 Banjo Connector Screw is a critical component in the hydraulic and fuel systems of commercial trucks. Its role in ensuring secure and efficient fluid transfer contributes significantly to the overall performance and reliability of the vehicle. Proper installation, regular maintenance, and timely replacement are essential to maximize the benefits of this Cummins part.