3969654
Tube Connector Elbow
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$46.95 $55.87

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 Tube Connector Elbow, identified by Part #3969654, is a component manufactured by Cummins, a well-established name in the automotive and heavy-duty truck industry. This part is integral to the fluid systems within commercial trucks, facilitating the efficient transfer and direction of fluids. Cummins is recognized for its commitment to quality and innovation in automotive components, ensuring that their products meet the demanding requirements of heavy-duty applications 1.

Basic Concepts and Functionality

A Tube Connector Elbow is a fitting used in fluid systems to connect and direct the flow of fluids at an angle. It operates by providing a bend in the fluid pathway, allowing for the redirection of fluid flow without compromising the integrity of the system. This component is crucial for maintaining the structural integrity and efficiency of fluid transfer within a truck’s system, ensuring that fluids reach their intended destinations without leakage or loss of pressure 2.

Purpose of the 3969654 Tube Connector Elbow

This Cummins part serves a specific role in the operation of commercial trucks. It is designed to connect and direct the flow of fluids, such as coolant, fuel, or hydraulic fluid, within various truck systems. Its application extends across different systems, including engine cooling, fuel delivery, and hydraulic systems, where it ensures that fluids are efficiently routed to where they are needed.

Key Features

The 3969654 is characterized by several key features that enhance its performance and durability. It is constructed from high-quality materials, ensuring resistance to corrosion and wear. The design of the elbow allows for a secure connection to other system components, minimizing the risk of leaks. Additionally, its unique characteristics, such as precise angle and fitting dimensions, ensure optimal fluid flow and system efficiency.

Benefits

Utilizing this part offers several advantages. It contributes to improved system efficiency by ensuring that fluids are directed accurately and without loss. The durability of the material used in its construction ensures long-term reliability, even in the demanding conditions of heavy-duty applications. Furthermore, its design enhances the overall reliability of the truck’s fluid systems, reducing the likelihood of maintenance issues.

Installation Considerations

When installing the 3969654, it is important to follow guidelines and best practices to ensure compatibility with other system components and to maintain the integrity of the fluid system. Proper tools and procedures should be used to secure the fitting, ensuring a leak-free connection. Compatibility with existing system components should be verified to prevent issues such as leaks or inefficient fluid flow.

Troubleshooting and Maintenance

Common issues with the 3969654 may include leaks or blockages in the fluid flow. Diagnostic tips for identifying these issues include checking for signs of fluid leakage around the fitting or observing changes in system performance. Maintenance practices to ensure the longevity and optimal performance of the elbow include regular inspection for wear or damage, ensuring secure connections, and replacing the fitting if signs of degradation are observed.

Cummins Overview

Cummins is a reputable manufacturer in the automotive and heavy-duty truck industry, known for its high-quality components and innovative solutions. The company’s commitment to producing reliable and efficient parts is evident in their wide range of products, designed to meet the rigorous demands of commercial and industrial applications. Cummins’ reputation is built on a foundation of quality, performance, and customer satisfaction, making them a trusted name in the industry.

Tube Connector Elbow (Part 3969654) Compatibility with Cummins Engines

The Tube Connector Elbow, part number 3969654, is a critical component in the exhaust systems of various Cummins engines. This part is designed to facilitate smooth transitions in the exhaust flow, ensuring optimal performance and efficiency. Below is a detailed overview of its compatibility with specific Cummins engines:

ISB/ISD4.5 CM2150 B119

The Tube Connector Elbow is integral to the exhaust system of the ISB/ISD4.5 CM2150 B119 engine. It ensures that the exhaust gases flow efficiently from the turbocharger to the exhaust manifold, maintaining the engine’s performance and reducing back pressure.

ISB/ISD6.7 CM2150 SN

Similar to the ISB/ISD4.5 CM2150 B119, the ISB/ISD6.7 CM2150 SN engine also utilizes the Tube Connector Elbow. This part is essential for maintaining the integrity of the exhaust system, ensuring that the larger displacement engine operates smoothly and efficiently.

ISBE CM2150

The ISBE CM2150 engine benefits from the Tube Connector Elbow, which helps in directing the exhaust gases effectively. This ensures that the engine maintains its performance characteristics and complies with emission standards.

ISBE CM800

In the ISBE CM800 engine, the Tube Connector Elbow plays a crucial role in the exhaust system. It ensures that the exhaust gases are directed properly, contributing to the engine’s overall efficiency and performance.

ISBE4 CM850

The ISBE4 CM850 engine also incorporates the Tube Connector Elbow. This part is essential for maintaining the exhaust system’s efficiency, ensuring that the engine operates smoothly and meets performance standards.

ISC CM850

For the ISC CM850 engine, the Tube Connector Elbow is a key component in the exhaust system. It ensures that the exhaust gases flow efficiently, contributing to the engine’s overall performance and reliability.

ISL9 CM2150 SN

The ISL9 CM2150 SN engine utilizes the Tube Connector Elbow to maintain the efficiency of its exhaust system. This part ensures that the exhaust gases are directed properly, supporting the engine’s performance and efficiency.

Each of these engines relies on the Tube Connector Elbow to ensure that the exhaust system functions optimally, contributing to the engine’s overall performance and efficiency.

Role of Part 3969654 Tube Connector Elbow in Engine Systems

In the intricate network of an engine system, the Tube Connector Elbow (part 3969654) serves as a pivotal component, ensuring seamless fluid dynamics and structural integrity. This part is instrumental in the following applications:

Compressor Coolant System

Within the compressor coolant system, the Tube Connector Elbow facilitates the transition of coolant flow at a 90-degree angle. This is essential for navigating the compact and often convoluted pathways within the engine compartment. By providing a smooth bend, it minimizes turbulence and pressure drop, which are vital for maintaining efficient coolant circulation. This, in turn, helps in optimal heat dissipation from the compressor, enhancing overall system performance and reliability.

Plumbing Arrangements

In the broader context of engine plumbing, the Tube Connector Elbow is often employed to connect various sections of tubing that run parallel or perpendicular to each other. Its design allows for flexible routing of fluids, whether it be coolant, lubricants, or other necessary fluids, without compromising the integrity of the flow. This adaptability is particularly beneficial in densely packed engine bays where space is at a premium, and traditional straight connectors would be impractical.

Integration with Other Components

The Tube Connector Elbow also plays a supportive role when interfacing with other components such as sensors, filters, and regulators. Its robust construction ensures a secure connection, preventing leaks and maintaining consistent fluid pressure. This reliability is paramount in ensuring that all interconnected systems operate within their specified parameters, contributing to the engine’s longevity and efficiency.

Conclusion

In summary, the Tube Connector Elbow (part 3969654) is a versatile and essential component in engine systems, facilitating efficient fluid transfer and contributing to the overall performance and durability of the engine. Its role in maintaining the integrity and efficiency of fluid systems in commercial trucks is undeniable, making it a critical part in the operation of heavy-duty vehicles.


  1. Robert Bosch GmbH. (2007). Bosch Automotive Electrics and Automotive Electronics: Systems and Components, Networking and Hybrid Drive (5th ed.). Springer Vieweg.

  2. Hiereth, H., Prenninger, P., & Drexl, K. W. (2010). Charging the Internal Combustion Engine. Springer.

* 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.