3929906
Air Intake Connection
Cummins®

Introduction

The Air Intake Connection 3929906, manufactured by Cummins, is a critical component in commercial truck engines. This part facilitates the flow of air into the engine, which is essential for combustion and overall engine performance ³.

Basic Concepts of Air Intake Connections

An air intake connection links various parts of the air intake system within a truck’s engine. Its primary role is to ensure a smooth and efficient flow of air from the outside environment into the engine. This air, when mixed with fuel, combusts to produce the power needed for the truck’s operation. The efficiency of this air intake process directly influences the engine’s performance, fuel efficiency, and emissions ³.

Purpose of the 3929906 Air Intake Connection

The 3929906 is designed to connect different sections of the air intake system, ensuring a seamless flow of air into the engine. By providing a secure and efficient pathway for air, it helps maintain optimal engine performance. This connection ensures that the air entering the engine is clean and in the right quantity, which is crucial for efficient combustion ³.

Key Features

The 3929906 is characterized by its robust design and the quality materials used in its construction. It is engineered to withstand the harsh conditions typically encountered in commercial truck operations. The connection features a durable construction that ensures longevity and reliable performance. Additionally, its design allows for easy integration with other components of the air intake system ².

Benefits

The use of the 3929906 offers several advantages. It contributes to improved engine efficiency by ensuring a consistent and clean air supply. This can lead to better fuel economy and reduced emissions. The durable construction of the connection also means it can withstand the rigors of commercial truck use, providing long-term reliability ².

Installation Process

Installing the 3929906 requires careful attention to ensure it is properly integrated into the truck’s air intake system. The process involves disconnecting the old connection, if present, and securing the new connection in its place. It is important to follow the manufacturer’s guidelines to ensure a proper fit and function. This may include torquing fasteners to specified values and ensuring all connections are secure ¹.

Common Issues and Troubleshooting

Typical problems with the 3929906 may include leaks or blockages in the air intake system. These issues can lead to reduced engine performance and efficiency. Troubleshooting steps may involve inspecting the connection for signs of wear or damage, ensuring all fasteners are tight, and checking for any obstructions in the air intake path ¹.

Maintenance Tips

Regular maintenance of the 3929906 is important to ensure its longevity and optimal performance. This includes periodic inspections for signs of wear or damage, ensuring all connections are secure, and cleaning the area around the connection to prevent the accumulation of dirt or debris that could affect air flow ¹.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a history spanning over a century, Cummins has established a reputation for quality and reliability in the commercial truck industry. The company’s commitment to innovation and customer satisfaction is reflected in its products, including the 3929906 ².

Integration with Key Engine Components

Air Filter

The 3929906 interfaces directly with the air filter. It secures the connection between the air filter housing and the intake tract, ensuring that all incoming air is properly filtered before it enters the engine. This connection minimizes the risk of unfiltered particles entering the combustion chamber, which could lead to engine wear or damage ³.

Intake Manifold

Once air passes through the air filter, the 3929906 channels it into the intake manifold. The intake manifold distributes the air evenly across all cylinders, ensuring consistent performance and efficient combustion. A well-sealed connection is vital to prevent air leaks, which can disrupt the air-fuel mixture and affect engine performance ³.

Throttle Body

In many engine configurations, the 3929906 also plays a role in linking the intake tract to the throttle body. The throttle body regulates the amount of air entering the engine based on driver input. A secure and leak-free connection here ensures that the throttle body can accurately control airflow, contributing to smooth acceleration and responsive engine performance ³.

Intercooler (in Turbocharged Engines)

In turbocharged engine systems, the 3929906 may also be part of the path between the turbocharger and the intercooler. The intercooler cools the compressed air from the turbocharger before it enters the intake manifold. A reliable connection ensures that cooled air is efficiently delivered to the engine, enhancing performance and reducing the risk of detonation ³.

Conclusion

The 3929906 Air Intake Connection is a vital component in the air intake system of commercial truck engines. Its role in ensuring a smooth and efficient flow of air into the engine is crucial for optimal combustion, engine performance, fuel efficiency, and longevity. Regular maintenance and proper installation are key to maximizing the benefits of this Cummins part.