3975256
Air Fuel Control Tube
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$37.95 $45.16

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

Introduction

The Air Fuel Control Tube 3975256 is a component designed by Cummins to enhance the operation of commercial trucks. This part is integral to the engine’s air and fuel management system, ensuring optimal performance and efficiency. Its role in maintaining the correct air-fuel ratio is significant for the overall functionality and reliability of the truck.

Basic Concepts of Air Fuel Control Tubes

An Air Fuel Control Tube is a component that facilitates the precise delivery of air and fuel to the engine. It operates within the engine system to maintain the optimal air-fuel ratio, which is essential for efficient combustion. This, in turn, contributes to the engine’s performance, emissions control, and fuel economy. The tube works in conjunction with other engine components to ensure that the engine operates smoothly under various conditions 1.

Purpose of the 3975256 Air Fuel Control Tube

The 3975256 Air Fuel Control Tube is specifically designed to regulate the flow of air and fuel within the engine system of a truck. It interacts with the fuel injectors, turbocharger, and other components to ensure that the engine receives the correct mixture of air and fuel. This precise control helps in achieving better combustion efficiency, which translates to improved engine performance and reduced emissions 2.

Key Features

The 3975256 Air Fuel Control Tube is constructed from high-quality materials that ensure durability and reliability. Its design includes features such as reinforced connections and a smooth interior to facilitate efficient airflow. Additionally, the tube is engineered to withstand high pressures and temperatures, making it suitable for heavy-duty applications. These characteristics contribute to its enhanced performance and longevity 3.

Benefits

The use of the 3975256 Air Fuel Control Tube offers several benefits. It contributes to improved engine efficiency by ensuring the correct air-fuel ratio, which leads to better combustion. This results in enhanced fuel economy, allowing trucks to operate more cost-effectively. Furthermore, the tube’s reliable performance under various operating conditions ensures that the engine runs smoothly, reducing the likelihood of issues arising from improper air-fuel mixture.

Installation Process

Installing the 3975256 Air Fuel Control Tube requires careful attention to detail. Begin by ensuring that the engine is turned off and has cooled down. Disconnect the old tube from the engine components, taking note of the connections for reassembly. Position the new tube in place, ensuring that all connections are secure and properly aligned. Use the appropriate tools to tighten any fittings, and double-check that there are no leaks. Finally, start the engine and monitor its performance to ensure that the new tube is functioning correctly.

Troubleshooting Common Issues

Common issues with the 3975256 Air Fuel Control Tube may include leaks, blockages, or improper connections. To troubleshoot these problems, first, inspect the tube and its connections for any signs of damage or wear. Check for leaks by applying pressure to the system and observing any drops in pressure. If a blockage is suspected, disassemble the tube and clean any debris that may be obstructing the airflow. Ensure that all connections are secure and properly aligned to prevent future issues.

Maintenance Tips

Regular maintenance of the 3975256 Air Fuel Control Tube is important to ensure its longevity and optimal performance. Inspect the tube periodically for any signs of wear or damage. Clean the tube and its connections to remove any buildup that may affect airflow. Additionally, ensure that all fittings are tight and secure to prevent leaks. Following these maintenance practices will help maintain the efficiency and reliability of the tube.

Compatibility and Application

The 3975256 Air Fuel Control Tube is designed to fit specific types of engines and truck models. It is important to verify compatibility before installation to ensure proper fit and function. Cummins provides detailed information on the applications for which this tube is suitable, helping users select the correct component for their needs.

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 has established a strong reputation in the commercial truck industry for producing high-quality, reliable components. The company’s product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of commercial applications.

Cummins Air Fuel Control Tube 3975256 Compatibility

The Cummins Air Fuel Control Tube, part number 3975256, is a critical component in the engine’s air management system. This part ensures that the correct air-fuel mixture is delivered to the engine, optimizing performance and efficiency. It is designed to fit seamlessly with various Cummins engines, ensuring compatibility and reliability.

Engine Compatibility

  • 6C8.3

The 3975256 Air Fuel Control Tube is specifically engineered to fit the 6C8.3 engine. This engine is known for its robust performance and reliability, making it a popular choice in various applications. The Air Fuel Control Tube plays a vital role in maintaining the engine’s efficiency by ensuring that the air-fuel mixture is precisely controlled.

  • Other Cummins Engines

While the primary focus is on the 6C8.3 engine, the 3975256 Air Fuel Control Tube is also compatible with other Cummins engines. This versatility ensures that the part can be used across a range of applications, providing consistent performance and reliability. The compatibility extends to various engine models, making it a versatile choice for maintenance and repair.

Installation and Functionality

The installation of the Air Fuel Control Tube is straightforward, designed to fit snugly within the engine’s air management system. This ensures that the engine receives the correct air-fuel mixture, enhancing performance and efficiency. The part is made from high-quality materials, ensuring durability and longevity.

Importance of the Air Fuel Control Tube

The Air Fuel Control Tube is essential for maintaining the engine’s optimal performance. It ensures that the air-fuel mixture is precisely controlled, which is crucial for efficient combustion. This, in turn, helps to reduce emissions and improve fuel economy, making it a vital component for any engine.

Maintenance and Replacement

Regular maintenance of the Air Fuel Control Tube is essential to ensure that the engine continues to perform at its best. Replacement of the part should be done as per the manufacturer’s recommendations to avoid any potential issues. The part is readily available, ensuring that maintenance and repairs can be carried out efficiently.

By ensuring that the Air Fuel Control Tube is in good condition, engine owners can maintain optimal performance and efficiency, extending the life of their engines.

Role of Part 3975256 Air Fuel Control Tube in Engine Systems

The Air Fuel Control Tube, identified by part number 3975256, is integral to the efficient operation of various engine systems. Its primary function is to regulate the air-fuel mixture, ensuring optimal combustion and performance.

Integration with Plumbing Systems

In the context of engine plumbing, the Air Fuel Control Tube works in conjunction with fuel lines and air intake systems. It facilitates the precise delivery of fuel and air to the combustion chamber, maintaining the desired air-fuel ratio. This regulation is essential for maximizing engine efficiency and minimizing emissions.

Interaction with Turbocharger Systems

When integrated with turbocharger systems, the Air Fuel Control Tube plays a significant role in enhancing engine performance. Turbochargers compress the incoming air, increasing its density. The Air Fuel Control Tube ensures that the compressed air is mixed with the appropriate amount of fuel, allowing the engine to burn the mixture more efficiently. This results in improved power output and better throttle response.

Overall Engine System Contribution

Across various engine systems, the Air Fuel Control Tube contributes to stable engine operation under different conditions. Whether the engine is idling, cruising, or under heavy load, this component helps maintain a consistent air-fuel ratio, which is vital for smooth operation and longevity of the engine components.

Conclusion

The 3975256 Air Fuel Control Tube by Cummins is a critical component in the engine’s air and fuel management system. Its role in maintaining the correct air-fuel ratio ensures optimal engine performance, efficiency, and reliability. Regular maintenance and proper installation are essential to maximize the benefits of this part, contributing to the overall longevity and performance of commercial trucks.


  1. Wright, G. (2015). Fundamentals of Medium-Heavy Duty Diesel Engines. Jones & Bartlett Learning.

  2. Randall, M. (2015). Haynes Manual on Diesel Engines. Haynes Publishing.

  3. Aird, F. (2001). Bosch Fuel Injection Systems. HP Books.

* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.