4918021
Oil Suction Connection
Cummins®

The 4918021 Oil Suction Connection by Cummins is a component designed to facilitate the efficient operation of commercial truck engines. Its role is integral to the lubrication system, ensuring that engine components receive the necessary oil for smooth operation and longevity.

Basic Concepts of Oil Suction Connection

An oil suction connection is a part of the engine’s lubrication system responsible for drawing oil from the sump and delivering it to various engine components. This process ensures that moving parts are adequately lubricated, reducing friction and wear. The connection operates by creating a pathway for oil to flow from the sump, where it is stored, to the engine’s lubrication points ¹.

Purpose of the 4918021 Oil Suction Connection

The 4918021 Oil Suction Connection plays a role in the lubrication system by drawing oil from the sump and facilitating its distribution to critical engine components. This ensures that all parts requiring lubrication receive an adequate supply, which is vital for the engine’s efficient operation and durability ².

Key Features

The 4918021 Oil Suction Connection is characterized by its robust design and the use of high-quality materials, which contribute to its performance and durability. Its construction allows for secure attachment to the engine, ensuring a reliable oil flow. Additionally, the connection is designed to withstand the high pressures and temperatures within the engine compartment ³.

Benefits

The advantages of the 4918021 Oil Suction Connection include enhanced engine lubrication, which leads to reduced friction and wear on engine components. Its durable construction contributes to the overall efficiency and longevity of the engine. Proper lubrication is key to maintaining engine performance and preventing premature wear ⁴.

Installation Process

Installing the 4918021 Oil Suction Connection involves several steps to ensure a secure and effective fit. Preparatory steps include cleaning the installation area and inspecting the connection for any damage. The necessary tools for installation should be gathered beforehand. Following the manufacturer’s guidelines for torque specifications and alignment is crucial for a proper installation.

Maintenance Tips

Regular maintenance of the 4918021 Oil Suction Connection is recommended to ensure its continued performance. This includes periodic inspections for signs of wear or damage, cleaning the connection to remove any debris, and checking for proper attachment to the engine. Adhering to these maintenance practices can help prevent issues and ensure the connection remains functional.

Troubleshooting Common Issues

Common problems with the 4918021 Oil Suction Connection may include leaks, blockages, or connection failures. Diagnostic steps should be taken to identify the issue, which may involve inspecting the connection for damage, checking for proper attachment, and ensuring there are no obstructions in the oil flow path. Repair or replacement procedures should follow the manufacturer’s recommendations.

Compatibility and Application

The 4918021 Oil Suction Connection is designed for use with specific types of engines and truck models. It is important to consult the manufacturer’s guidelines for compatibility and any specific application notes or installation considerations to ensure proper fit and function.

Cummins: A Brief Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its wide range of products and strong reputation for quality and reliability. The company’s history of innovation and commitment to excellence is reflected in its product offerings, including the 4918021 Oil Suction Connection. Cummins’ expertise in engine technology ensures that their components are designed to meet the demanding requirements of commercial truck applications.

Role of Part 4918021 Oil Suction Connection in Engine Systems

The Oil Suction Connection, identified as part 4918021, is an integral component in the lubrication system of an engine. It is responsible for drawing oil from the oil pan and directing it towards the oil pump. This process ensures a continuous supply of oil is available for the pump to circulate throughout the engine, providing necessary lubrication to moving parts.

When the engine is operational, the Oil Suction Connection interfaces with the oil pan, which acts as a reservoir for the engine oil. The connection is typically located at the bottom of the pan, where the oil level is highest, ensuring an efficient draw of oil. The design of the connection allows it to submerge into the oil, minimizing the risk of air ingestion which could lead to cavitation in the oil pump.

As the oil is suctioned from the pan, it travels through the Oil Suction Connection and into the oil pump. The pump then pressurizes the oil and distributes it to various engine components such as the crankshaft, camshaft, pistons, and bearings. This lubrication is essential for reducing friction and wear, maintaining operational efficiency, and prolonging the lifespan of the engine.

The Oil Suction Connection must be securely fitted to prevent leaks and maintain the integrity of the oil system. It is often equipped with a screen or filter to catch debris and contaminants that may be present in the oil, protecting the oil pump and other components from damage.

Conclusion

In summary, the Oil Suction Connection plays a significant role in the engine’s lubrication system by facilitating the efficient transfer of oil from the oil pan to the oil pump, which is fundamental for the engine’s performance and durability.