5266561
Banjo Connector Screw
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$6.49 $7.72

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The 5266561 Banjo Connector Screw, manufactured by Cummins, is a specialized component used in commercial trucks. It is integral to the fluid systems within these vehicles, ensuring the efficient transfer of fluids such as hydraulic or fuel. Understanding the role of banjo connector screws is fundamental to maintaining the operational integrity of truck fluid systems.

Basic Concepts of Banjo Connector Screws

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, a banjo fitting, and a gasket. The banjo fitting is a short, tubular component with an opening on one end and a threaded bolt hole on the other. When tightened, the bolt compresses the gasket against the fitting, creating a seal that prevents fluid leakage. This design allows for secure and leak-resistant connections in dynamic environments 1.

Purpose of the 5266561 Banjo Connector Screw in Truck Operation

The 5266561 Banjo Connector Screw plays a specific role in the operation of commercial trucks by facilitating the connection between fluid lines and components within hydraulic or fuel systems. It ensures that fluids are transferred efficiently and without leaks, which is vital for the proper functioning of the truck’s systems. This component is often found in applications where secure and reliable fluid connections are required under varying operational conditions 2.

Key Features of the 5266561 Banjo Connector Screw

The 5266561 Banjo Connector Screw is designed with several features that enhance its performance. It is constructed from high-quality materials to withstand the pressures and temperatures encountered in truck fluid systems. The thread type is standardized to ensure compatibility with other components. Additionally, it incorporates a sealing mechanism that provides a robust barrier against fluid leakage, contributing to the overall reliability of the connection 3.

Benefits of Using the 5266561 Banjo Connector Screw

Using the 5266561 Banjo Connector Screw offers several advantages. Its durable construction ensures long-term reliability, while its design minimizes the risk of leaks. The component is also designed for ease of installation, allowing for quick and secure connections. Furthermore, its compatibility with a wide range of truck fluid systems makes it a versatile choice for maintenance and repair applications 4.

Installation and Usage Guidelines

Proper installation of the 5266561 Banjo Connector Screw involves several steps to ensure a secure and leak-free connection. Begin by ensuring that the mating surfaces are clean and free of debris. Apply a suitable sealant to the threads if required, then position the banjo fitting over the hose or pipe. Insert the bolt through the fitting and tighten it to the specified torque using a wrench. Finally, inspect the connection for any signs of leakage before putting the system into operation 5.

Troubleshooting Common Issues

Common issues with banjo connector screws include leaks and connection failures. These problems can often be traced to improper installation, damaged gaskets, or corrosion. To address leaks, first, ensure that the connection is tightened to the correct torque. If leaks persist, inspect the gasket for damage and replace it if necessary. Corrosion can be mitigated by using components made from corrosion-resistant materials and by applying appropriate coatings or sealants 6.

Maintenance Tips

Regular maintenance of the 5266561 Banjo Connector Screw is important for ensuring its longevity and reliable performance. Periodic inspections should be conducted to check for signs of wear, corrosion, or damage. Gaskets should be replaced as needed to maintain a secure seal. Additionally, ensuring that all connections are tightened to the correct torque during maintenance procedures will help prevent leaks and connection failures 7.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the commercial truck industry. The company’s commitment to excellence is reflected in its wide range of products, which are designed to meet the demanding requirements of commercial vehicle applications 8.

Cummins Engine Compatibility with Part 5266561

The Cummins part 5266561, a Banjo Connector Screw, is designed to fit seamlessly with a variety of Cummins engines. This part is integral in ensuring the proper sealing and connection of hoses to the engine’s fuel, oil, or coolant systems. Below is a detailed look at the engines that are compatible with this specific part.

B Series Engines

  • B4.5 CM2350 B129B
  • B6.7 CM2350 B135B
  • B6.7 CM2670 B153B
  • B6.7 CM2670 B164C

These B series engines, ranging from B4.5 to B6.7, utilize the Banjo Connector Screw in their respective systems. The part is essential for maintaining the integrity of the hose connections, ensuring no leaks occur under pressure.

D Series Engines

  • D4.0 CM2620 D103B

The D4.0 CM2620 D103B engine also integrates the Banjo Connector Screw as part of its design. This part is critical for the proper functioning of the engine’s fluid systems.

F Series Engines

  • F4.5 CM2620 F139B

The F4.5 CM2620 F139B engine is another model that relies on the Banjo Connector Screw for its hose connections. This ensures that the engine’s fluid systems operate efficiently and safely.

ISB/ISD Series Engines

  • ISB/ISD4.5 CM2150 B119
  • ISB/ISD6.7 CM2150 SN

The ISB/ISD series engines, including the ISB/ISD4.5 CM2150 B119 and ISB/ISD6.7 CM2150 SN, both use the Banjo Connector Screw. This part is crucial for maintaining the connections in the engine’s fluid systems.

ISBE Series Engines

  • ISBE CM2150
  • ISBE4 CM850

The ISBE CM2150 and ISBE4 CM850 engines also incorporate the Banjo Connector Screw. This part is essential for ensuring the secure and leak-free connection of hoses in these engines.

ISL Series Engines

  • ISL9 CM2150 SN
  • ISL9.5 CM2880 L138

The ISL9 CM2150 SN and ISL9.5 CM2880 L138 engines both utilize the Banjo Connector Screw. This part is vital for the proper sealing and connection of hoses in these engines.

L Series Engines

  • L8.9 CM2670 L134C
  • L9 CM2670 L128B

The L8.9 CM2670 L134C and L9 CM2670 L128B engines also integrate the Banjo Connector Screw. This part is essential for maintaining the integrity of the hose connections in these engines.

By ensuring the proper fit and function of the Banjo Connector Screw, these engines can operate efficiently and safely, with reliable fluid system connections.

Role of Part 5266561 Banjo Connector Screw in Engine Systems

The Part 5266561 Banjo Connector Screw is an essential component in various engine systems, facilitating secure and reliable connections. Its primary function is to ensure a tight and leak-free seal in fluid transfer systems.

In the connection of the water inlet to the engine, this banjo connector screw plays a significant role. It secures the water inlet pipe to the engine block, allowing coolant to flow into the engine. This connection is vital for maintaining the engine’s optimal operating temperature.

Within the plumbing system of the cabin heater, the banjo connector screw ensures that the coolant circulates efficiently from the engine to the heater core. This circulation is necessary for providing warm air to the vehicle’s cabin, enhancing passenger comfort.

The banjo connector screw is also instrumental in the vent system, where it helps manage the flow of coolant to various components. Proper venting is essential to prevent airlocks and ensure consistent coolant flow throughout the system.

In the engine coolant system, this component secures the connections between the radiator, thermostat housing, and other critical points. It ensures that the coolant can circulate without leaks, which is fundamental for dissipating heat and protecting the engine from overheating.

Overall, the Part 5266561 Banjo Connector Screw is a key element in maintaining the integrity and efficiency of these engine systems, ensuring that fluid transfer occurs smoothly and without interruption.

Conclusion

The 5266561 Banjo Connector Screw is a critical component in the fluid systems of commercial trucks, ensuring efficient and leak-free fluid transfer. Its durable construction, ease of installation, and compatibility with various Cummins engines make it a reliable choice for maintaining the operational integrity of truck fluid systems. Regular maintenance and proper installation are essential to maximize the performance and longevity of this component.


  1. Lakshminarayanan, P. A., & Agarwal, A. K. (2019). Design and Development of Heavy Duty Diesel Engines: A Handbook. Springer.

  2. Hilgers, M. (2023). Fuel Consumption and Consumption Optimization, Second Edition. Springer Nature.

  3. Rendle, S., & Randall, M. (2000). Haynes Diesel Engine Systems and Data Book. Haynes Publishing.

  4. Cummins Inc. (n.d.). L8.9 Series Troubleshooting and Repair Manual, Service Manual (4310704).

  5. Cummins Inc. (n.d.). L8.9 Series Troubleshooting and Repair Manual, Service Manual (4310704).

  6. Cummins Inc. (n.d.). L8.9 Series Troubleshooting and Repair Manual, Service Manual (4310704).

  7. Cummins Inc. (n.d.). L8.9 Series Troubleshooting and Repair Manual, Service Manual (4310704).

  8. Cummins Inc. (n.d.). L8.9 Series Troubleshooting and Repair Manual, Service Manual (4310704).

SPECIFICATIONS

Package Dimensions
16.0 x 11.0 x 2.0 in
Weight
0.1 lb
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.