3979490
Oil Suction Connection
Cummins®

The 3979490 Oil Suction Connection, manufactured by Cummins, is a critical component in the lubrication system of heavy-duty truck engines. This part ensures the efficient circulation of oil throughout the engine, contributing to reduced friction, heat dissipation, and the removal of contaminants. Cummins, a renowned manufacturer in the automotive industry, is known for its reliable and high-performance diesel engines and components.

Basic Concepts of Oil Suction Connection

An Oil Suction Connection is a vital component within the lubrication system of a truck engine, responsible for drawing oil from the oil pan into the engine’s lubrication system. This process ensures that all moving parts receive adequate lubrication, which is essential for maintaining engine performance and longevity. The connection creates a pathway for oil to flow from the oil pan to the engine’s oil pump ¹.

Purpose of the 3979490 Oil Suction Connection

This Cummins part plays a significant role in the lubrication system by ensuring a consistent and reliable flow of oil to the engine. It provides a secure and efficient means for oil to be drawn from the oil pan, which is crucial for minimizing wear on engine components and contributing to the overall reliability and efficiency of the engine ².

Key Features

The 3979490 Oil Suction Connection is designed with several features that enhance its functionality. It is constructed from durable materials to withstand the harsh conditions within a heavy-duty truck engine. The connection type is designed to ensure a secure fit, preventing leaks and ensuring efficient oil flow. Additionally, the design may include features that reduce the risk of contamination, such as filters or screens, to keep the oil clean and free from debris ³.

Benefits

The advantages provided by the 3979490 Oil Suction Connection include improved oil flow, which ensures that all engine components receive adequate lubrication. This part also helps reduce the risk of contamination within the lubrication system, contributing to cleaner oil and better engine protection. Enhanced engine protection leads to improved performance and longevity of the engine, making this component a valuable part of the lubrication system.

Installation Process

Installing the 3979490 Oil Suction Connection requires careful attention to ensure a secure fit. The process involves preparing the oil pan and the connection point, aligning the connection with the oil pump intake, and securing it in place using the appropriate tools. Best practices include checking for proper alignment, ensuring all connections are tight, and verifying that there are no leaks before operating the engine.

Troubleshooting Common Issues

Common problems associated with Oil Suction Connections can include leaks or blockages. Diagnosing these issues involves inspecting the connection for signs of wear or damage, checking for proper alignment, and ensuring that all connections are secure. Resolution methods may include tightening connections, replacing damaged parts, or cleaning the connection to remove any blockages.

Maintenance Tips

Regular maintenance practices are important for ensuring the longevity and efficiency of the 3979490 Oil Suction Connection. This includes inspecting the connection for signs of wear or damage at regular intervals, cleaning the connection to remove any debris or contaminants, and ensuring that all connections remain secure. Following these maintenance tips can help prevent common issues and ensure the efficient operation of the lubrication system.

Cummins: A Brief Overview

Cummins Inc. is a leading manufacturer in the automotive industry, with a history of producing high-performance diesel engines and related components. The company’s product range includes engines, filtration systems, and powertrain components, all designed to meet the demanding requirements of heavy-duty applications. Cummins is known for its reputation in the industry, providing reliable and efficient solutions for a variety of automotive and industrial applications.

Cummins Engine Part 3979490: Oil Suction Connection

The Cummins part number 3979490, identified as an Oil Suction Connection, is a critical component in the oil system of certain Cummins engines. This part is designed to facilitate the flow of oil from the oil pan to the oil pump, ensuring that the engine receives a consistent and adequate supply of lubrication.

Compatibility with Cummins Engines

The Oil Suction Connection part 3979490 is compatible with the following Cummins engines:

• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)

These engines are part of the Cummins QSB series, known for their reliability and performance in various applications, including industrial, marine, and agricultural uses.

Installation and Functionality

In these engines, the Oil Suction Connection is typically located at the bottom of the engine block, where it connects to the oil pan. This connection is crucial for maintaining the integrity of the oil system, as it ensures that oil is drawn efficiently from the pan and directed to the oil pump. The design of the part ensures a secure and leak-proof connection, which is vital for preventing oil loss and maintaining engine health.

Importance of Proper Installation

Proper installation of the Oil Suction Connection is essential to avoid potential engine damage. Any leaks or improper connections can lead to insufficient oil pressure, which can cause excessive wear and potentially catastrophic engine failure. Therefore, it is important to follow the manufacturer’s guidelines and use the correct installation techniques when replacing or servicing this component.

Maintenance Considerations

Regular maintenance of the Oil Suction Connection is recommended to ensure its longevity and effectiveness. This includes inspecting the part for any signs of wear, corrosion, or damage during routine engine service intervals. If any issues are detected, the part should be replaced promptly to maintain optimal engine performance.

Role of Part 3979490 Oil Suction Connection in Engine Systems

The 3979490 Oil Suction Connection is an integral component in the lubrication system of an engine, ensuring the efficient transfer of oil from the oil pan to the engine’s lubrication points. This connection facilitates the smooth operation of the oil pump, which is responsible for circulating oil throughout the engine.

When the engine is running, the oil suction connection draws oil from the oil pan, where it is stored. The oil is then transported to the oil pump, which pressurizes it before distributing it to various engine components such as the crankshaft, camshaft, pistons, and bearings. This continuous circulation of oil is essential for reducing friction, dissipating heat, and preventing wear and tear on moving parts.

The efficiency of the oil suction connection directly impacts the performance and longevity of the engine. A well-maintained and properly functioning oil suction connection ensures that the oil pump receives a consistent supply of oil, thereby maintaining optimal lubrication levels. This, in turn, contributes to the overall reliability and efficiency of the engine system.

Conclusion

The 3979490 Oil Suction Connection is a vital component in the lubrication system of heavy-duty truck engines, ensuring the efficient circulation of oil and contributing to the overall performance and longevity of the engine. Proper installation, regular maintenance, and understanding its role in the engine system are crucial for maximizing the benefits of this Cummins part.