4068034
Expansion Plug
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$17.95 $21.36

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 4068034 Expansion Plug is a component designed for use in commercial truck maintenance. It serves a specific function within the engine or cooling system, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and significance is fundamental for maintaining the optimal performance of commercial trucks.

Basic Concepts of Expansion Plugs

Expansion plugs are mechanical devices used to seal openings in various systems, including automotive and industrial applications. They function by expanding upon installation to create a tight seal, preventing leaks and maintaining system integrity. These plugs are commonly used in engines, cooling systems, and other machinery where sealing is crucial for operation 1.

Purpose of the Cummins 4068034 Expansion Plug

The Cummins 4068034 Expansion Plug plays a role in the operation of commercial trucks by sealing specific openings within the engine or cooling system. Its function is to prevent fluid leaks and maintain system pressure, ensuring the engine operates efficiently. This plug is integral to preserving the integrity of the system it is installed in 2.

Key Features

The Cummins 4068034 Expansion Plug is characterized by several key features that enhance its performance. It is constructed from durable materials, ensuring longevity and resistance to corrosion. The design of the plug allows for easy installation and removal, while its expansion mechanism ensures a secure and reliable seal. These attributes contribute to the plug’s effectiveness in commercial truck applications 3.

Benefits

Using the Cummins 4068034 Expansion Plug offers several benefits. It contributes to improved system integrity by providing a reliable seal against leaks. This enhances the performance of the engine or cooling system, leading to more efficient operation. Additionally, the durability of the plug ensures longevity, reducing the need for frequent replacements and maintenance.

Installation Process

Installing the Cummins 4068034 Expansion Plug requires following a specific procedure to ensure a secure fit. The process involves cleaning the installation site, inserting the plug, and using the appropriate tools to expand it into place. Adhering to best practices during installation is important to achieve a proper seal and prevent future issues.

Troubleshooting Common Issues

Common problems with expansion plugs include leaks or improper seating. These issues can often be addressed by inspecting the plug for damage, ensuring the installation site is clean and free of debris, and verifying that the plug has been properly expanded. In some cases, replacement of the plug may be necessary to resolve the issue.

Maintenance Tips

Regular maintenance of the Cummins 4068034 Expansion Plug is important to ensure its continued effectiveness. This includes periodic inspections for signs of wear or damage, cleaning the plug and its installation site, and replacing the plug as needed. Adhering to recommended maintenance schedules helps prevent issues and ensures the plug continues to perform its intended function.

Safety Considerations

When working with expansion plugs, it is important to observe safety guidelines and precautions. This includes wearing appropriate personal protective equipment, following manufacturer instructions for installation and maintenance, and being aware of the potential hazards associated with high-pressure systems. Proper handling and care of expansion plugs contribute to safe and effective operation.

Cummins Corporation Overview

Cummins Inc. is a leading manufacturer in the commercial truck and engine industry, known for its wide range of products and commitment to quality. With a history of innovation and excellence, Cummins has established a reputation for producing reliable and high-performance components, including the Cummins 4068034 Expansion Plug. The company’s dedication to customer satisfaction and technological advancement makes it a trusted name in the industry.

Compatibility of Expansion Plug Part 4068034 with Cummins Engines

The Expansion Plug part 4068034, manufactured by Cummins, is designed to fit seamlessly with a range of Cummins engines. This part is crucial for maintaining the integrity and performance of the engine by ensuring proper sealing and preventing leaks.

QST30 CM2350 T101 and QST30 CM552 Engines

The Expansion Plug part 4068034 is specifically engineered to fit the QST30 CM2350 T101 and QST30 CM552 engines. These engines are part of the Cummins QST30 series, which is known for its reliability and efficiency in various industrial applications.

The part is designed to integrate smoothly with the engine’s architecture, ensuring that it provides the necessary sealing and support. This compatibility is achieved through precise engineering and adherence to stringent quality standards, ensuring that the part functions optimally within these engine models.

Grouping of Engines

When considering the compatibility of the Expansion Plug part 4068034, it is important to note that both the QST30 CM2350 T101 and QST30 CM552 engines belong to the same series. This grouping allows for a standardized approach to maintenance and repair, making it easier for technicians to manage and service these engines.

The part’s design takes into account the specific requirements and configurations of these engines, ensuring that it fits perfectly and performs reliably. This standardization not only simplifies the maintenance process but also enhances the overall performance and longevity of the engines.

Importance of Proper Fitment

Proper fitment of the Expansion Plug part 4068034 is critical for the engine’s operation. Any misalignment or improper installation can lead to leaks, reduced efficiency, and potential engine damage. Cummins has ensured that this part meets the exact specifications needed for these engines, providing a reliable and durable solution for maintaining engine integrity.

By using the correct part for these engines, users can ensure that their equipment remains in optimal condition, reducing downtime and maintenance costs. The Expansion Plug part 4068034 is a testament to Cummins’ commitment to quality and reliability, providing a crucial component for the continued performance of the QST30 CM2350 T101 and QST30 CM552 engines.

Role of Part 4068034 Expansion Plug in Engine Systems

The part 4068034 Expansion Plug is an essential component in the operation of various engine systems, particularly within the block, cylinder, and cylinder block assemblies.

In the block of an engine, the Expansion Plug serves to seal off unused or redundant passages. This ensures that coolant, oil, or other fluids do not leak into areas where they are not intended to flow, maintaining the integrity of the engine’s fluid systems.

Within the cylinder, the Expansion Plug is utilized to seal off any unnecessary ports or passages. This is particularly important in multi-cylinder engines where certain cylinders may have different requirements or configurations. By effectively sealing these passages, the plug helps in maintaining consistent pressure and fluid levels across all cylinders, which is vital for balanced engine performance.

In the cylinder block, the Expansion Plug plays a significant role in compartmentalizing different fluid pathways. The cylinder block is the structural heart of the engine, housing the cylinders and often the coolant passages. The Expansion Plug ensures that these pathways are correctly sealed, preventing cross-contamination between oil, coolant, and other fluids. This segregation is key to the efficient operation and longevity of the engine.

Overall, the part 4068034 Expansion Plug is integral to the precise fluid management within engine systems, contributing to the reliability and performance of the engine as a whole.

Conclusion

The Cummins 4068034 Expansion Plug is a critical component in the maintenance and operation of commercial trucks. Its role in sealing openings within the engine or cooling system ensures the prevention of fluid leaks and the maintenance of system pressure, contributing to the efficient operation of the engine. The plug’s durable construction, ease of installation, and reliable sealing mechanism make it an essential part for maintaining the integrity and performance of commercial truck engines. Regular maintenance and proper installation are key to ensuring the continued effectiveness of this part.


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

  2. Mollenhauer, Klaus, and Helmut Tschoeke. Handbook of Diesel Engines. Springer, 2010.

  3. Randall, Martynn. Haynes Manual on Diesel Engines. Haynes Publishing, 2015.

SPECIFICATIONS

Package Dimensions
6.0 x 4.0 x 0.1 in
Weight
0.01 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.