3089238
Threaded Plug
Cummins®

The Cummins 3089238 Threaded Plug is a critical component in commercial truck maintenance and operation, designed to enhance the efficiency and reliability of vehicle systems. Understanding its purpose and functionality is essential for effective maintenance and troubleshooting.

Basic Concepts of Threaded Plugs

Threaded plugs are mechanical devices used to seal openings in various systems, including automotive and industrial applications. They function by being screwed into a threaded hole, creating a secure seal that prevents fluid or gas leakage. These plugs are vital for maintaining system integrity and ensuring components operate within specified parameters ¹.

Purpose and Function of the 3089238 Threaded Plug

The Cummins 3089238 Threaded Plug serves to seal specific applications within truck systems, contributing to sealing, pressure management, and maintaining system integrity. By securely fitting into designated ports, it prevents the escape of fluids or gases, ensuring efficient and safe system operation ².

Key Features

This Cummins part is characterized by several key features that enhance its performance and durability. These include its material composition, selected for resistance to corrosion and wear, and its thread type, which ensures a tight and secure fit. The design specifications of the plug are tailored to meet the demands of its application, providing reliability and longevity ³.

Benefits

Utilizing the Cummins 3089238 Threaded Plug offers several advantages. It contributes to improved system reliability by ensuring secure seals and proper pressure management. The design of the plug facilitates ease of installation, reducing downtime during maintenance procedures. Additionally, its durability and reliability can lead to long-term cost savings by minimizing the need for frequent replacements or repairs ⁴.

Troubleshooting and Maintenance

Common issues associated with threaded plugs include leaks due to wear or improper installation. Diagnostic tips for identifying problems with the 3089238 Threaded Plug involve checking for signs of leakage or corrosion around the plug site. Maintenance practices to ensure optimal performance include regular inspection for wear, proper torque during installation to avoid over-tightening, and replacement when signs of degradation are observed ⁵.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and commitment to quality, Cummins serves commercial, industrial, and automotive markets. The company’s extensive product range and focus on technological advancement underscore its position as a trusted provider in the automotive industry ⁶.

Compatibility with Cummins Engines

The 3089238 Threaded Plug is designed to fit a variety of Cummins engines, ensuring compatibility across different engine models. This plug is integral for sealing and securing various components within the engine system.

ISB Series

The ISB series engines, including ISB (Chrysler), ISB CM2150, ISB CM550, ISB CM850, ISB/ISD4.5 CM2150 B119, ISB/ISD6.7 CM2150 SN, ISB5.9 CM2880 B110, ISB5.9 CM2880 B140, ISB5.9 CM2880 B149, ISB6.7 CM2250, and ISBE CM2150, are compatible with the 3089238 Threaded Plug. This series of engines is known for its robust performance and reliability, often used in heavy-duty applications.

Other Cummins Engines

The 3089238 Threaded Plug also fits the following Cummins engines: 15N CM2380 M104B, 6B5.9, 6C8.3, B4.5 RGT, B5.6 CM2670 B152B, B6.7 CM2670 B153B, B6.7 CM2670 B164C, B6.7 G CMOH6.0 B125, C GAS PLUS CM556, C8.3 G, F4.5 CM2620 F141C, G8.3, G8.3 CM558, GTA8.3 CM558. These engines span a range of applications, from industrial to commercial use, and the 3089238 Threaded Plug is designed to ensure secure and effective sealing in these diverse environments.

Component Usage

The 3089238 Threaded Plug is an essential component in various engine systems, facilitating the secure sealing of openings and passages within these systems. Its role is significant in maintaining the integrity and efficiency of the engine’s operation.

Auxiliary Cooling System

In the Auxiliary Cooling System, the threaded plug is utilized to seal connections and passages, ensuring that the cooling fluid circulates efficiently without leaks. This is vital for maintaining optimal engine temperature and preventing overheating.

Cylinder Block and Cylinder Head

Within the Cylinder Block and Cylinder Head, the threaded plug is employed to seal off unused passages or to provide a secure fit for sensors and other monitoring devices. This ensures that the engine’s internal environment remains sealed, contributing to consistent performance and reliability.

Fuel Injection Pump and Fuel Manifold Kit

The Fuel Injection Pump and Fuel Manifold Kit also benefit from the use of the threaded plug. It seals connections and passages, ensuring that fuel is delivered accurately and without leaks, which is essential for the engine’s combustion process.

Oil Pan and Oil Top Level Assembly Pan

In the Oil Pan and Oil Top Level Assembly Pan, the threaded plug is used to seal openings for oil level sensors or drain plugs. This ensures that the oil system remains sealed, preventing oil loss and maintaining lubrication efficiency.

Plumbing Systems

For the Plumbing Systems such as the Aftercooler Water Plumbing, Cylinder Block Plumbing, Fuel Drain Plumbing, Oil Pan Plumbing, and Oil Replenishing System Plumbing, the threaded plug is crucial for sealing connections and ensuring that fluids are transported efficiently without leaks.

Thermostat Top Level Assembly Housing and Water Outlet Connection

The Thermostat Top Level Assembly Housing and Water Outlet Connection also utilize the threaded plug to ensure a secure seal, which is important for maintaining the engine’s cooling system efficiency.

Conclusion

The Cummins 3089238 Threaded Plug plays a significant role in various engine systems by providing secure seals for connections and passages, contributing to the engine’s overall performance and reliability. Its compatibility with a wide range of Cummins engines, coupled with its durable design and ease of installation, makes it a valuable component in maintaining the efficiency and safety of commercial truck systems.