3920795
Oil Suction Connection
Cummins®

Introduction

The Cummins 3920795 Oil Suction Connection is a vital component in commercial truck engines, designed to facilitate the efficient transfer of oil from the sump to the engine’s lubrication system. This part ensures a consistent oil supply, which is essential for maintaining engine health and performance ¹.

Basic Concepts of Oil Suction Connection

Oil suction connections are critical to an engine’s lubrication system, drawing oil from the sump and directing it to various moving parts. This process reduces friction, dissipates heat, and protects against wear and tear. The efficiency of an oil suction connection directly impacts the engine’s longevity and operational reliability ².

Purpose and Role in Truck Operation

The Cummins 3920795 Oil Suction Connection is engineered to enhance the lubrication process in commercial truck engines. By ensuring a steady flow of oil, it contributes to the engine’s overall efficiency and performance. This part is designed to withstand the demanding conditions of heavy-duty truck operations, providing reliable lubrication under various load and speed conditions ³.

Key Features

The Cummins 3920795 Oil Suction Connection features a robust design and high-quality materials. Its durable construction can resist the pressures and temperatures encountered in commercial truck engines. The design includes precise fittings and seals to ensure a secure connection and prevent oil leaks, which are essential for maintaining engine efficiency ⁴.

Benefits

Using the Cummins 3920795 Oil Suction Connection offers several advantages. It enhances engine lubrication, leading to improved performance and reduced wear on critical components. The part’s durable construction contributes to its longevity, potentially reducing maintenance costs for fleet operators. Moreover, efficient oil circulation facilitated by this connection can contribute to overall fuel efficiency ⁵.

Installation Process

Installing the Cummins 3920795 Oil Suction Connection requires careful attention to ensure proper fitting and operation. The process involves securing the connection to the oil sump and ensuring all seals are intact. Specific tools may be required to achieve a tight and secure fit, which is essential for preventing oil leaks and ensuring efficient oil flow ⁶.

Maintenance Tips

Regular maintenance of the Cummins 3920795 Oil Suction Connection is important for prolonging its lifespan and ensuring optimal performance. This includes periodic inspections for signs of wear or damage, cleaning the connection to remove any debris that could impede oil flow, and replacing the part according to the manufacturer’s guidelines or when signs of degradation are observed ⁷.

Troubleshooting Common Issues

Common issues with the Cummins 3920795 Oil Suction Connection may include oil leaks or inefficient oil flow. Diagnostic steps to address these problems involve inspecting the connection for damage, ensuring all seals are intact, and checking for proper installation. Solutions may range from tightening connections to replacing damaged parts to restore efficient oil circulation ⁸.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a broad product range, Cummins is renowned for its quality and reliability in the commercial truck industry. The company’s commitment to excellence is reflected in its parts, including the 3920795 Oil Suction Connection ⁹.

Cummins Engine Compatibility with Oil Suction Connection Part 3920795

The Cummins Oil Suction Connection part number 3920795 is designed to fit seamlessly with a variety of Cummins engines, ensuring efficient oil flow and maintaining engine performance. Here is a detailed look at the compatibility of this part with specific engine models:

4B3.9 and 6B5.9 Engines

The 4B3.9 and 6B5.9 engines, known for their robust performance, are compatible with the 3920795 Oil Suction Connection. This part ensures that the oil flow is uninterrupted, which is crucial for the longevity and efficiency of these engines.

B4.5 and B5.9 G Engines

The B4.5 and B5.9 G engines also benefit from the use of the 3920795 Oil Suction Connection. This part is engineered to fit these models, providing a reliable connection that supports the engine’s oil suction system.

B5.9 GAS PLUS CM556 Engine

For the B5.9 GAS PLUS CM556 engine, the 3920795 Oil Suction Connection is a critical component. It ensures that the engine’s oil suction system operates smoothly, contributing to the overall efficiency and performance of the engine.

ISB CM550 and ISB3.9 CM2220 B107 Engines

The ISB CM550 and ISB3.9 CM2220 B107 engines are designed to work with the 3920795 Oil Suction Connection. This part is essential for maintaining the integrity of the oil suction system in these engines, ensuring they run at optimal levels.

QSB3.9 30 CM550 and QSB3.9 CM2880 B138 Engines

Lastly, the QSB3.9 30 CM550 and QSB3.9 CM2880 B138 engines are also compatible with the 3920795 Oil Suction Connection. This part plays a vital role in the oil suction system of these engines, ensuring that they operate efficiently and reliably.

Role of Part 3920795 Oil Suction Connection in Engine Systems

The oil suction connection, identified by part number 3920795, is a critical component in the lubrication system of an engine. It facilitates the efficient transfer of oil from the oil pan to the engine’s lubrication points.

Interaction with the Oil Pan

The oil suction connection is typically mounted on the oil pan. Its primary function is to draw oil from the pan using a suction mechanism, usually driven by the oil pump. This connection ensures a secure and leak-free pathway for the oil to travel from the pan to the pump. The design of the connection often includes gaskets or seals to maintain the integrity of the oil system, preventing any potential leaks that could lead to oil loss and subsequent engine damage ¹⁰.

Ensuring Consistent Oil Flow

As the oil is suctioned from the pan, the connection plays a role in maintaining a consistent flow of oil to the pump. This is vital for the pump to operate efficiently, ensuring that it can deliver the necessary volume of oil to lubricate moving parts within the engine. The connection’s design may incorporate features to prevent air ingestion, which can disrupt the flow and lead to cavitation within the pump ¹¹.

Integration with the Lubrication System

Once the oil is drawn through the suction connection, it moves into the oil pump, which pressurizes the oil before distributing it throughout the engine. The oil then lubricates critical components such as bearings, pistons, and camshafts, reducing friction and wear. The suction connection is the first step in this process, making its role significant in the overall health and performance of the engine ¹².

Maintenance and Inspection

Regular inspection of the oil suction connection is recommended to ensure it remains in good condition. Any signs of wear, corrosion, or damage should be addressed promptly to maintain the efficiency of the oil system. Proper maintenance of this component contributes to the longevity and reliability of the engine ¹³.

Conclusion

The Cummins 3920795 Oil Suction Connection is a critical component in the lubrication system of commercial truck engines. Its robust design, compatibility with various Cummins engines, and role in ensuring efficient oil flow make it essential for maintaining engine health and performance. Regular maintenance and prompt attention to any issues are crucial for the longevity and reliability of this part and the engines it serves.