4959391
Bypass Valve Gasket
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$16.95 $20.17

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 4959391 Bypass Valve Gasket is a component designed to ensure the efficient operation of commercial trucks. Its purpose is to maintain the integrity of the engine system by providing a reliable seal for the bypass valve. This gasket plays a role in the overall performance and longevity of the truck’s engine 1.

Basic Concepts of Bypass Valve Gaskets

A bypass valve gasket is a sealing component used in engine systems to prevent leaks and ensure proper function of the bypass valve. The bypass valve itself is designed to redirect fluid flow when certain conditions are met, such as when pressure exceeds a predetermined level. The gasket ensures that the valve operates within a sealed environment, maintaining system efficiency and preventing contamination 2.

Role of the 4959391 Bypass Valve Gasket in Truck Operation

This Cummins part is integral to the operation of a truck’s engine system. It works in conjunction with the bypass valve to manage fluid flow under varying conditions. By providing a secure seal, the gasket helps maintain consistent pressure and flow rates, which are vital for the engine’s performance. Its interaction with other engine components ensures that the system operates smoothly and efficiently 3.

Key Features of the 4959391 Bypass Valve Gasket

The 4959391 is characterized by several key features that enhance its effectiveness. These include its material composition, which is designed to withstand high temperatures and pressures, and its precise design specifications that ensure a perfect fit within the engine system. The manufacturing quality of this gasket is also noteworthy, as it adheres to strict standards to guarantee reliability and durability.

Benefits of Using the 4959391 Bypass Valve Gasket

Utilizing this Cummins part offers several advantages. It contributes to improved engine performance by ensuring a reliable seal, which helps maintain optimal pressure and flow conditions. The gasket’s durable construction enhances the longevity of the engine system, while its reliable sealing capabilities prevent leaks and contamination, leading to more efficient operation.

Installation and Maintenance Guidelines

Proper installation of the 4959391 is vital for its effectiveness. It should be carefully positioned to ensure a secure fit within the engine system. Regular maintenance, including periodic inspections and replacements as needed, will help maintain its sealing capabilities and ensure the continued efficient operation of the engine. Following manufacturer guidelines for installation and maintenance will contribute to the gasket’s longevity and performance.

Troubleshooting Common Issues

Common issues associated with bypass valve gaskets include leaks and failures, which can arise from wear and tear or improper installation. To address these problems, it is important to conduct regular inspections and replace the gasket if signs of damage or wear are detected. Ensuring that the gasket is correctly installed and maintained will help prevent these issues and maintain the integrity of the engine system.

Importance of Regular Inspections

Regular inspections of the bypass valve gasket are important to identify potential issues before they lead to more significant problems. During inspections, it is important to look for signs of wear, damage, or leaks. Addressing these issues promptly will help maintain the gasket’s sealing capabilities and ensure the continued efficient operation of the engine system.

Cummins: A Brief Overview

Cummins Inc. is a well-established company in the commercial truck industry, known for its commitment to quality and innovation. With a diverse product range that includes engines, filtration systems, and aftermarket parts, Cummins has built a reputation for reliability and performance. The company’s dedication to advancing technology and meeting the needs of its customers has solidified its position as a leader in the industry.

Bypass Valve Gasket (Part 4959391) Compatibility with Cummins Engines

The Bypass Valve Gasket, identified by the part number 4959391 and manufactured by Cummins, is a component in ensuring the proper sealing and functionality of the bypass valve within various Cummins engine models. This gasket is designed to fit seamlessly with a range of engines, providing a reliable seal that prevents leaks and maintains system integrity.

G5.9 and G5.9 CM558 Engines

The Bypass Valve Gasket is compatible with the G5.9 and G5.9 CM558 engines. These engines are known for their robust performance and reliability, often used in a variety of applications where durability and efficiency are paramount. The gasket ensures that the bypass valve operates correctly, contributing to the overall efficiency and longevity of the engine.

G8.3 and G8.3 CM558 Engines

Similarly, the G8.3 and G8.3 CM558 engines also benefit from the use of the Bypass Valve Gasket. These engines are designed for high-performance applications, and the gasket plays a role in maintaining the seal around the bypass valve, ensuring that the engine operates at optimal efficiency.

KTA19GC CM558 and KTA38GC CM558 Engines

The KTA19GC CM558 and KTA38GC CM558 engines are part of Cummins’ lineup of industrial and marine engines. The Bypass Valve Gasket is engineered to fit these engines, providing a reliable seal that is essential for the proper functioning of the bypass valve. This ensures that these engines maintain their performance and efficiency, even under demanding conditions.

Role of Part 4959391 Bypass Valve Gasket in Engine Systems

The 4959391 Bypass Valve Gasket is a component in ensuring the efficient operation of various engine systems. Its primary function is to create a seal between the bypass valve and the engine block or manifold, preventing leaks and maintaining system integrity.

Integration with Engine Components

  1. Arrangement and Installation: The gasket is strategically placed within the engine arrangement to facilitate a secure seal. This is particularly important in high-pressure environments where even minor leaks can lead to significant performance issues.

  2. Fuel Governor and Governor Systems: In fuel governor and governor systems, the 4959391 gasket ensures that the bypass valve operates within specified parameters. This helps in maintaining consistent fuel delivery and pressure, which is vital for engine performance and efficiency.

  3. Electronic and Module Integration: When dealing with electronic modules and fuel control systems, the gasket plays a role in ensuring that the bypass valve functions correctly. This is important for the precise control of fuel flow and pressure, which are monitored and adjusted by electronic systems.

  4. Fuel Control Upfit Kit: In systems utilizing a fuel control upfit kit, the gasket ensures that the bypass valve integrates seamlessly with existing components. This is essential for retrofitting older engines with newer fuel control technologies without compromising performance.

  5. Valve and Pressure Regulator Systems: The gasket is also integral in valve and pressure regulator systems. It ensures that the bypass valve can modulate pressure effectively, which is crucial for maintaining optimal engine operation under varying conditions.

Conclusion

By understanding the role of the 4959391 Bypass Valve Gasket in these systems, engineers and mechanics can better appreciate its importance in maintaining engine efficiency and reliability.


  1. Wang, Yushu. Introduction to Engine Valvetrains. SAE International, 2007.

  2. Gifford, Clive. Cars Encyclopedia. DK Publishing, 2014.

  3. Bari, Saiful. Diesel Engine Combustion, Emissions and Condition Monitoring. InTech, 2013.

SPECIFICATIONS

Package Dimensions
7.5 x 7.5 x 0.1 in
Weight
0.004 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.