3964817
Banjo Connector Screw
Cummins®

The 3964817 Banjo Connector Screw by Cummins is a component that plays a role in the fluid systems of commercial trucks. This part is integral to the efficient operation of hydraulic and fuel systems, ensuring that fluids are properly directed and managed within the truck’s system. Understanding its role and significance can help in maintaining and troubleshooting truck systems effectively.

Basic Concepts

A Banjo Connector Screw is a type of fitting used in fluid systems to connect hoses or pipes to various components. It typically consists of a bolt with a banjo fitting attached, which has a sealing surface that interfaces with a corresponding port on the component it is connecting to. In the context of a truck’s hydraulic or fuel system, the Banjo Connector Screw facilitates the transfer of fluids under pressure, ensuring a secure and leak-free connection ¹.

Purpose and Function

The 3964817 Banjo Connector Screw by Cummins is designed to connect hoses or pipes to components within a truck’s hydraulic or fuel system. Its purpose is to provide a reliable connection point that can withstand the pressures and conditions present in these systems. By ensuring a secure fit, it helps maintain the integrity of the fluid pathways, which is vital for the proper functioning of the truck’s systems ².

Key Features

The 3964817 Banjo Connector Screw features a design that enhances its functionality and durability. It is typically made from high-quality materials that can resist corrosion and wear, ensuring longevity in demanding applications. The design includes precise threading and a robust banjo fitting that provides a secure seal, minimizing the risk of leaks. Additionally, it may have unique attributes such as enhanced sealing surfaces or compatibility with specific hose types, which differentiate it from other models ³.

Benefits

The 3964817 Banjo Connector Screw offers several advantages in truck applications. Its durable construction and reliable sealing capabilities contribute to improved system efficiency by ensuring that fluids are transferred without leaks or disruptions. The robust design also enhances the reliability of the connection, reducing the need for frequent maintenance and replacements. These attributes make it a valuable component in ensuring the smooth operation of a truck’s hydraulic and fuel systems.

Troubleshooting and Maintenance

Common issues with the 3964817 Banjo Connector Screw may include leaks, corrosion, or damage to the fitting. To address these issues, it is important to regularly inspect the connector for signs of wear or damage. If a leak is detected, the fitting should be tightened or replaced as necessary. Corrosion can be mitigated by using corrosion-resistant materials and ensuring that the fitting is properly sealed. Regular maintenance practices, such as cleaning and inspecting the connector, can help ensure optimal performance and longevity.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes diesel and natural gas engines, as well as related technologies. With a history spanning over a century, Cummins has established itself as a leader in the commercial vehicle industry, known for its commitment to innovation, quality, and customer satisfaction. The company’s expertise in engine manufacturing and its dedication to advancing technology make it a trusted provider of components like the 3964817 Banjo Connector Screw.

Cummins Engine Compatibility with Part 3964817: Banjo Connector Screw

The Banjo Connector Screw, part number 3964817, manufactured by Cummins, is a critical component used in various engine systems. This part is designed to securely attach hoses to the engine, ensuring a tight and leak-proof connection. Below is a detailed overview of the engines compatible with this part, grouped by their series and model specifications.

B Series Engines

• B4.5 CM2350 B129B
• B4.5 RGT
• B5.6 CM2670 B152B
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125

F Series Engines

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F3.8 F102
• F4.5 CM2620 F139B
• F4.5 CM2620 F141C

ISB Series Engines

• ISB (Chrysler)
• ISB CM2150
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

ISBE Series Engines

• ISBE CM2150
• ISBE CM800

The Banjo Connector Screw part number 3964817 is versatile and compatible with a wide range of Cummins engines, ensuring that it can be used across different engine models and series. This compatibility makes it a valuable component for technicians and engineers working with Cummins engines.

Role of Part 3964817 Banjo Connector Screw in Engine Systems

The Banjo Connector Screw, identified by part number 3964817, is integral to the fluid dynamics within various engine systems. It facilitates the secure connection between the injector plumbing and the cylinder head, ensuring a leak-free pathway for fuel or oil delivery. This component is essential in maintaining the integrity of the fuel or lubrication system, directly impacting the performance and reliability of the engine.

In the context of the cylinder block and its associated hardware kit, the Banjo Connector Screw plays a supportive role by ensuring that the injectors are properly sealed to the cylinder head. This sealing is vital for the precise delivery of fuel to each cylinder, which is necessary for optimal combustion and engine efficiency.

When considering the long block or short block configurations, the Banjo Connector Screw is a small yet significant part that contributes to the overall functionality of the engine. It ensures that the injectors, which are responsible for fuel delivery, are correctly installed and sealed. This is particularly important in high-performance engines where fuel delivery precision can significantly affect engine output and drivability.

Furthermore, in the overhaul kit or lower engine gasket kit, the inclusion of the Banjo Connector Screw underscores its importance in maintaining the engine’s fluid systems. Its role in connecting and sealing the injector plumbing to the cylinder head is a testament to its significance in the engine’s operation.

Conclusion

Overall, the Banjo Connector Screw, part 3964817, is a key component in the intricate network of parts that make up modern engine systems. Its proper installation and maintenance are essential for the engine’s performance, durability, and efficiency.