191238
Compression Release Shaft
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$20.95 $24.93

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 191238 Compression Release Shaft, manufactured by Cummins, is a component designed to enhance the operation of heavy-duty trucks. Cummins, a well-established name in the automotive industry, is known for its high-quality components that contribute to the efficiency and reliability of vehicles. This part is integral to the engine systems of trucks, particularly in facilitating engine braking and improving overall vehicle control.

Basic Concepts of Compression Release Shafts

A Compression Release Shaft is a mechanical component that plays a role in the engine’s operation by allowing for the release of compression within the cylinders. This release aids in engine braking, a technique used to slow down a vehicle by using the engine’s compression rather than the traditional braking system. By facilitating easier engine braking and deceleration, the compression release shaft contributes to safer and more controlled driving, especially during descents 1.

Purpose of the 191238 Compression Release Shaft

This Cummins part is specifically designed to enhance the engine braking systems in trucks. It operates by momentarily releasing the compression in the engine’s cylinders, which in turn slows down the vehicle. This mechanism is particularly beneficial in heavy-duty trucks, where traditional braking systems may not be sufficient for safe deceleration, especially when carrying heavy loads or navigating steep declines. The shaft contributes to improved vehicle control and safety by providing an additional means of deceleration 2.

Key Features

The 191238 boasts several key features that enhance its performance and durability. Its design is engineered to withstand the rigorous conditions of heavy-duty truck operations. The materials used in its construction are selected for their strength and resistance to wear, ensuring longevity and reliability. Additionally, the shaft may include unique attributes such as precision machining for smooth operation and compatibility with various engine configurations 3.

Benefits

Utilizing the 191238 Compression Release Shaft offers several benefits. It improves engine braking efficiency, allowing for safer and more controlled deceleration. This is particularly advantageous during descents, where traditional braking systems may overheat or fail. Enhanced safety during such scenarios is a significant benefit. Furthermore, the efficient engine braking facilitated by the shaft can lead to potential fuel savings by reducing the reliance on the vehicle’s primary braking system.

Installation and Integration

Proper installation and integration of the 191238 Compression Release Shaft into a truck’s engine system are crucial for its effective operation. Guidelines for installation should be followed carefully, including any necessary adjustments or compatibility checks with the specific engine model. Ensuring the shaft is correctly installed will contribute to its performance and the overall efficiency of the engine braking system.

Troubleshooting and Maintenance

Common issues with the 191238 Compression Release Shaft may include wear and tear or misalignment. Troubleshooting tips can involve checking for proper alignment and ensuring all components are securely fastened. Regular maintenance practices, such as inspecting for wear and performing routine checks, are recommended to ensure optimal performance and longevity of the shaft.

Performance Impact

The integration of the 191238 Compression Release Shaft into a truck’s engine system can lead to noticeable changes in performance. It enhances engine braking capabilities, providing more controlled deceleration and improved safety. Additionally, the shaft may contribute to better fuel efficiency by reducing the strain on the primary braking system. The overall driving dynamics of the truck may also be positively affected, offering a smoother and more controlled driving experience.

Safety Considerations

Safety is a paramount consideration when using the 191238 Compression Release Shaft. Proper usage guidelines should be followed to ensure the shaft operates as intended. Potential hazards, such as incorrect installation or failure to maintain the shaft, should be addressed to prevent any adverse effects on vehicle performance or safety. Recommended safety protocols include regular inspections and maintenance to ensure the shaft remains in optimal condition.

Cummins Overview

Cummins is a renowned manufacturer in the automotive industry, with a history of producing high-quality components for various vehicle types. The company’s reputation is built on its commitment to innovation, quality, and reliability. Cummins components, including the 191238 Compression Release Shaft, are designed with these principles in mind, ensuring they meet the demanding requirements of heavy-duty truck operations.

Conclusion

The 191238 Compression Release Shaft by Cummins is a vital component for enhancing the engine braking systems in heavy-duty trucks. Its design and features contribute to safer, more controlled deceleration, improved fuel efficiency, and overall vehicle performance. Proper installation, maintenance, and adherence to safety guidelines are essential for maximizing the benefits of this Cummins part.


  1. Department of Energy Fundamentals Handbook, Department of Energy, 2015.

  2. Automotive Technician Training, Second Edition, Tom Denton and Hayley Pells, Routledge, 2022.

  3. Diesel Mechanics, First Edition, Frank Sander, Global Media, 2007.

SPECIFICATIONS

Notes
8 5/16
Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
1.37 x 1.38 x 10.0 in
Weight
0.76 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.