4956578
Flexible Coupling
Cummins®

AVAILABLE

Cummins®

1 is currently available

Ships within 2-4 business days

$299.95 $356.94

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 Cummins 4956578 Flexible Coupling is a component designed to facilitate the connection between various parts of a commercial truck’s drivetrain. Its role is significant in ensuring the smooth operation of the vehicle by allowing for necessary movement and accommodating misalignment between connected components.

Basic Concepts of Flexible Couplings

Flexible couplings are mechanical devices used to connect two shafts in a system, allowing them to transmit torque while accommodating minor misalignments and axial, radial, and angular movements. They are widely utilized in various mechanical systems to enhance performance, reduce stress on connected components, and improve overall system reliability 1.

Purpose of the 4956578 Flexible Coupling

The 4956578 Flexible Coupling serves to connect different components within a truck’s drivetrain, enabling them to operate in unison despite potential misalignments or movements. This coupling allows for the transmission of power between the engine and transmission, or other drivetrain components, while accommodating the dynamic nature of truck operations 2.

Key Features

The 4956578 Flexible Coupling boasts several key features that enhance its performance. It is constructed from durable materials, ensuring longevity and reliability under demanding conditions. Its design incorporates elements that allow for significant misalignment and movement, reducing stress on connected components. Additionally, the coupling may feature unique characteristics such as vibration damping capabilities, which contribute to smoother operation and reduced wear on the drivetrain 3.

Benefits of Using the 4956578 Flexible Coupling

Utilizing the 4956578 Flexible Coupling offers several advantages. Its robust construction contributes to improved durability, reducing the likelihood of failure under stress. The coupling’s design minimizes maintenance requirements by accommodating misalignments and movements, which can otherwise lead to wear and tear on connected components. Furthermore, by ensuring smooth power transmission and reducing vibrations, the coupling enhances the overall operational efficiency of the truck.

Installation Considerations

When installing the 4956578 Flexible Coupling, it is important to follow guidelines and best practices to ensure proper functionality. This may include aligning the coupling correctly, ensuring torque specifications are met, and verifying that all connections are secure. Cummins may provide specific recommendations or requirements for installation, which should be adhered to for optimal performance.

Troubleshooting Common Issues

Common problems with the 4956578 Flexible Coupling may include misalignment, excessive wear, or failure to transmit power effectively. Troubleshooting steps may involve inspecting the coupling for signs of damage or wear, ensuring proper alignment of connected components, and verifying that installation torque specifications have been met. Addressing these issues promptly can help maintain the coupling’s performance and longevity.

Maintenance Tips

Regular maintenance of the 4956578 Flexible Coupling is key to ensuring optimal performance and longevity. This may include periodic inspection for signs of wear or damage, ensuring alignment of connected components, and following lubrication guidelines if applicable. Adhering to a maintenance schedule can help identify potential issues before they lead to significant problems, contributing to the overall reliability of the truck’s drivetrain.

Performance in Various Conditions

The 4956578 Flexible Coupling is designed to perform under a range of operating conditions, including varying temperatures, loads, and environments. Its robust construction and design features allow it to accommodate the dynamic nature of truck operations, ensuring reliable power transmission and component connection under diverse conditions.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history of innovation and a broad product range, Cummins has established a strong reputation in the commercial truck industry for producing reliable, high-performance components that contribute to the efficiency and durability of vehicles.

Flexible Coupling Part 4956578 in Cummins Engines

The Cummins Flexible Coupling part 4956578 is designed to be a critical component in the engine’s power transmission system. This part is engineered to connect the engine to the driven equipment, such as generators or pumps, ensuring smooth and efficient power transfer.

Application in KTA19GC Engines

The KTA19GC engine, known for its robust performance and reliability, utilizes the Flexible Coupling part 4956578 to maintain a seamless connection between the engine and its driven components. This coupling is essential in absorbing and compensating for misalignments, both angular and parallel, which can occur due to various factors such as thermal expansion, installation errors, or operational conditions.

Importance of the Flexible Coupling

In engines like the KTA19GC, the Flexible Coupling part 4956578 plays a pivotal role in reducing mechanical stress and wear on the engine and driven equipment. By accommodating slight movements and misalignments, it helps to prolong the lifespan of both the engine and the connected machinery, thereby enhancing overall system reliability and performance.

Compatibility and Installation

The Flexible Coupling part 4956578 is specifically designed to fit seamlessly with the KTA19GC engine, ensuring a precise and secure connection. Proper installation of this coupling is crucial to maintain the integrity of the power transmission system and to prevent potential damage from misalignment or excessive stress.

Maintenance and Performance

Regular maintenance of the Flexible Coupling part 4956578 is essential to ensure its continued effectiveness. This includes periodic inspections for signs of wear, damage, or misalignment, as well as ensuring that the coupling remains properly lubricated and free from contaminants. Proper maintenance helps to sustain the performance and longevity of the engine and its connected equipment.

Role of Part 4956578 Flexible Coupling in Engine Systems

The 4956578 Flexible Coupling is integral to the seamless operation of various engine systems, ensuring efficient power transmission and mitigating mechanical stress.

Generator Mounting

In generator mounting applications, the Flexible Coupling serves as a pivotal link between the engine and the generator. It allows for slight misalignments between the two components, which is common due to thermal expansion or manufacturing tolerances. This flexibility ensures that the generator operates smoothly without undue stress on the mounting brackets or the engine itself. The coupling absorbs vibrations and shocks generated during operation, prolonging the lifespan of both the generator and the engine.

System Integration

When integrating into broader engine systems, the 4956578 Flexible Coupling facilitates the connection between the engine and ancillary components such as pumps, compressors, and other driven equipment. Its design allows for rotational movement and axial displacement, which is essential in systems where components may expand or contract under varying operational conditions. This adaptability helps maintain consistent performance and reduces the likelihood of mechanical failures.

Ignition System

In the context of the ignition system, the Flexible Coupling plays a supportive role by ensuring that the mechanical linkage between the engine and ignition components remains intact and functional. It accommodates the dynamic movements and vibrations inherent in the engine’s operation, thereby safeguarding the integrity of the ignition system. This reliability is particularly important in high-performance engines where precision and consistency in ignition timing are paramount.

Conclusion

Overall, the 4956578 Flexible Coupling enhances the durability and efficiency of engine systems by providing a robust yet flexible connection between various components. Its role in accommodating misalignments, reducing mechanical stress, and ensuring smooth power transmission is critical for the reliable operation of commercial trucks and engines.


  1. Eret, Angelina. Dynamic and Fatigue Assessment of Heavy-Duty Engine Valves. Springer Nature, 2024.

  2. Gillespie, Thomas D. Fundamentals of Vehicle Dynamics. SAE International, 2021.

  3. Crolla, David. Crolla Encyclopedia. Wiley, 2015.

SPECIFICATIONS

Package Dimensions
1.8 x 1.8 x 1.75 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.