3944266
Oil Suction Connection
Cummins®

The 3944266 Oil Suction Connection is a component manufactured by Cummins, a well-established name in the commercial truck industry. This part is integral to the operation of commercial trucks, specifically within the engine lubrication system. Cummins, known for its commitment to quality and innovation, produces this component to ensure efficient and reliable engine performance ¹.

Basic Concepts of Oil Suction Connection

An Oil Suction Connection is a part of the engine lubrication system that facilitates the return of oil from the engine sump back to the oil pump. This process is vital for maintaining consistent oil circulation, which in turn helps in cooling, cleaning, and lubricating the engine’s moving parts. Proper lubrication is fundamental to engine health, as it reduces friction and wear on components, thereby enhancing engine efficiency and longevity ².

Purpose of the 3944266 Oil Suction Connection

This Cummins part plays a specific role in the lubrication system of a truck. It ensures that oil is effectively drawn from the sump and returned to the oil pump, maintaining a continuous cycle of lubrication. This part is designed to handle the demands of heavy-duty truck engines, ensuring that oil is consistently available for circulation throughout the engine ³.

Key Features

The 3944266 is characterized by several key features that enhance its performance. It is constructed from durable materials to withstand the high pressures and temperatures within the engine. The design includes precise fittings and connections to ensure a secure and leak-free installation. Additionally, the part may feature unique attributes such as reinforced seals or specialized coatings to improve its durability and efficiency.

Benefits

The use of the 3944266 offers several benefits. It contributes to improved engine performance by ensuring consistent oil flow, which is crucial for reducing friction and wear. This part also enhances the longevity and reliability of the engine, as proper lubrication is a key factor in preventing premature engine failure. These benefits collectively contribute to the overall efficiency and reliability of truck operations.

Installation Process

Installing the 3944266 requires careful attention to detail to ensure a secure and effective fit. The process involves preparing the engine sump area, aligning the connection with the oil pump inlet, and securing it in place using the appropriate tools. It is important to follow manufacturer guidelines to ensure that the connection is properly sealed and that there are no leaks in the system.

Troubleshooting Common Issues

Common issues with Oil Suction Connections can include leaks, blockages, or wear and tear. Addressing these problems typically involves inspecting the connection for damage, cleaning or replacing seals, and ensuring that all fittings are secure. Preventive maintenance, such as regular inspections and timely replacements, can help avoid these issues and ensure the continued reliability of the lubrication system.

Maintenance Tips

Regular maintenance of the 3944266 is crucial for ensuring optimal performance and longevity. This includes periodic inspections for signs of wear or damage, cleaning the connection to remove any debris, and checking for leaks. Following a maintenance schedule that aligns with the manufacturer’s recommendations can help maintain the efficiency of the lubrication system and extend the life of the engine.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins is renowned for its innovation, quality, and commitment to customer success. The company offers a wide range of products and services designed to meet the needs of various industries, including commercial trucking, where reliability and performance are paramount.

Cummins Engine Part 3944266: Oil Suction Connection

The Cummins part 3944266, an Oil Suction Connection, is a crucial component designed to fit seamlessly with a variety of Cummins engines. This part ensures the proper flow of oil from the oil sump to the oil pump, which is essential for engine lubrication and overall performance. Below is a detailed description of how this part integrates with the specified engines:

ISL Series Engines

• ISL CM2150
• ISL CM554
• ISL G CM2180
• ISL9 CM2150 SN
• ISL9 CM2250
• ISL9.5 CM2880 L138
• QSL8.9 CM2150 L141
• QSL9 CM2250
• QSL9 CM2350 L102
• QSL9 CM554
• QSL9 CM850 (CM2850)

The Oil Suction Connection part 3944266 is engineered to fit the ISL series engines, including both the standard and QSL variants. These engines are known for their robust performance and reliability, often used in heavy-duty applications such as trucks and construction equipment. The part ensures that the oil is drawn efficiently from the oil sump, maintaining the necessary lubrication for the engine’s moving parts.

L Series Engines

• L GAS PLUS CM556
• L8.9
• L8.9 L121
• L8.9G CMOH2.0 L125B
• L9.5 L117

The Oil Suction Connection part 3944266 is also compatible with the L series engines, which are typically used in various industrial and agricultural applications. This part ensures that the oil is effectively suctioned from the oil sump, providing the necessary lubrication for the engine’s components. The L series engines are known for their durability and efficiency, making them a popular choice in demanding environments.

6C Series Engine

• 6C8.3

The Oil Suction Connection part 3944266 is designed to fit the 6C8.3 engine, which is part of the 6C series. This engine is often used in marine and stationary power applications. The part ensures that the oil is properly suctioned from the oil sump, maintaining the engine’s lubrication system and overall performance.

By ensuring a proper fit and function, the Cummins part 3944266 Oil Suction Connection plays a vital role in the maintenance and longevity of these engines, providing reliable performance across various applications.

Conclusion

The Oil Suction Connection, identified by part number 3944266, is an integral component in the efficient operation of engine systems, particularly in relation to the oil pan and the overall lubrication system. This connection serves as a vital interface between the oil pan and the engine’s lubrication system. It is responsible for drawing oil from the oil pan, where it is stored, and directing it towards the engine’s various moving parts. The efficient suction of oil ensures that these parts receive the necessary lubrication to operate smoothly and reduce wear.

In the context of the oil pan, the Oil Suction Connection is typically located at the bottom of the pan. Its design and placement are engineered to maximize the suction of oil, even when the oil level is low. This is essential for maintaining consistent lubrication under all operating conditions.

Furthermore, the connection plays a role in the overall health of the engine’s lubrication system. By ensuring a steady supply of oil, it helps in maintaining the correct viscosity and temperature of the oil, which are key factors in the longevity and performance of the engine.

In summary, the Oil Suction Connection (part 3944266) is a key component in the engine’s lubrication system, working in tandem with the oil pan to ensure that the engine receives the lubrication it needs for optimal performance and longevity.