3905079
Exhaust Outlet Tube
Cummins®

Introduction

The Cummins 3905079 Exhaust Outlet Tube is a vital component in the exhaust systems of commercial trucks. It facilitates the efficient removal of exhaust gases from the engine, contributing to the overall performance and emission control of the vehicle. Understanding its role and significance within the exhaust system is fundamental for maintaining the efficiency and reliability of commercial trucks.

Basic Concepts of Exhaust Outlet Tubes

An Exhaust Outlet Tube serves as a conduit for directing exhaust gases from the engine to the exhaust system. It ensures that gases are expelled efficiently, which can influence engine performance and emissions. The design and material of the tube are crucial for withstanding high temperatures and pressures, ensuring durability and performance over time ¹.

Purpose of the 3905079 Exhaust Outlet Tube

The 3905079 Exhaust Outlet Tube is integral to the operation of a truck, primarily by directing exhaust gases away from the engine. This function is vital for maintaining engine temperature within optimal ranges and for contributing to emission control. By efficiently routing exhaust gases, the tube helps in reducing backpressure, which can enhance engine performance and fuel efficiency ².

Key Features

The 3905079 Exhaust Outlet Tube is constructed from materials that offer high resistance to corrosion and thermal stress, ensuring longevity and reliability. Its design incorporates elements that enhance durability, such as reinforced connections and a robust structure that can withstand the harsh conditions of commercial truck operations. Unique characteristics may include specific coatings or treatments that further protect against environmental factors and improve performance ³.

Benefits

Utilizing the 3905079 Exhaust Outlet Tube can lead to several advantages, including improved engine performance due to reduced backpressure, enhanced durability thanks to its construction materials and design, and potential contributions to fuel efficiency and emission reductions by ensuring efficient exhaust gas flow ⁴.

Installation Considerations

For the proper installation of the 3905079 Exhaust Outlet Tube, it is important to ensure compatibility with the specific truck model. Correct fitting and sealing are crucial to prevent leaks and ensure efficient exhaust gas flow. Following manufacturer guidelines for installation can help maintain the tube’s performance and longevity.

Troubleshooting Common Issues

Common issues with the 3905079 Exhaust Outlet Tube may include leaks, corrosion, or blockages. Addressing these problems effectively involves inspecting the tube for signs of damage or wear, cleaning or repairing as necessary, and ensuring all connections are secure and sealed properly. Regular maintenance can help identify and resolve issues before they lead to more significant problems.

Maintenance Tips

Regular maintenance of the 3905079 Exhaust Outlet Tube is key to ensuring its longevity and optimal performance. This includes routine inspections for signs of wear or damage, cleaning to remove any buildup that could impede gas flow, and monitoring for any signs of leaks or corrosion. Knowing when to consider replacement based on the condition of the tube can prevent potential engine performance issues.

Cummins Overview

Cummins Inc. is a leader in the manufacturing of diesel engines, with a rich history of innovation and quality in the commercial truck industry. The company’s commitment to advancing technology and improving engine efficiency is evident in its wide range of products, including the 3905079 Exhaust Outlet Tube, which is designed to meet the demanding requirements of commercial truck operations.

Exhaust Outlet Tube (Part 3905079) Compatibility with Cummins Engines

The Exhaust Outlet Tube, identified by part number 3905079, is a critical component in the exhaust system of various Cummins engines. This part is designed to fit seamlessly with a range of Cummins engines, ensuring efficient exhaust flow and maintaining the integrity of the exhaust system. Below is a detailed overview of the compatibility of this part with specific Cummins engine models:

4B3.9 and 6B5.9 Engines

The Exhaust Outlet Tube (3905079) is compatible with the 4B3.9 and 6B5.9 engines. These engines are part of the Cummins B Series, known for their robust design and reliability in various industrial and commercial applications. The 3905079 part ensures that the exhaust gases are directed properly, reducing back pressure and enhancing engine performance.

B5.9 G Engine

The B5.9 G engine also benefits from the use of the Exhaust Outlet Tube (3905079). This engine variant is designed for heavy-duty applications, and the proper fitting of the exhaust outlet tube is crucial for maintaining optimal exhaust flow and preventing system leaks.

QSB5.9 30 CM550 and QSB5.9 44 CM550 Engines

The Exhaust Outlet Tube (3905079) is engineered to fit the QSB5.9 30 CM550 and QSB5.9 44 CM550 engines. These engines are part of the Quanti-Shift B (QSB) series, which is renowned for its fuel efficiency and power output. The 3905079 part ensures that the exhaust system operates efficiently, contributing to the overall performance and longevity of these engines.

QSB6.7 CM850 (CM2850) Engine

The Exhaust Outlet Tube (3905079) is also compatible with the QSB6.7 CM850 (CM2850) engine. This engine is part of the Cummins QSB6.7 series, which is designed for high-performance applications. The 3905079 part plays a vital role in directing exhaust gases efficiently, ensuring that the engine operates at peak performance.

QSB7 CM2880 B117 Engine

Finally, the Exhaust Outlet Tube (3905079) is suitable for the QSB7 CM2880 B117 engine. This engine is part of the Cummins QSB7 series, which is known for its durability and power. The 3905079 part ensures that the exhaust system functions correctly, contributing to the engine’s overall efficiency and reliability.

By ensuring that the Exhaust Outlet Tube (3905079) is correctly installed in these engines, users can maintain optimal exhaust flow, reduce back pressure, and enhance the performance and longevity of their engines.

Role of Part 3905079 Exhaust Outlet Tube in Engine Systems

The Exhaust Outlet Tube, identified by part number 3905079, is an essential component in the exhaust system of various engine setups. It serves as a conduit that facilitates the smooth transition of exhaust gases from the engine’s exhaust manifold to the exhaust system’s subsequent components.

Integration with Exhaust Outlet

The primary function of the Exhaust Outlet Tube is to connect the exhaust manifold to the exhaust system. This connection is vital for directing exhaust gases away from the engine, ensuring efficient operation and reducing backpressure. The tube is designed to withstand high temperatures and pressures, maintaining a secure seal to prevent leaks.

Role in Repower Applications

In repower applications, where an engine is replaced or upgraded, the Exhaust Outlet Tube plays a significant role in ensuring compatibility between the new engine and the existing exhaust system. It provides a reliable connection point, allowing for the seamless integration of the new engine’s exhaust manifold with the vehicle’s exhaust system.

Use in Exhaust Kits

Exhaust kits often include the Exhaust Outlet Tube as a key component. These kits are designed to enhance engine performance by improving exhaust flow and reducing restrictions. The tube’s precise fit and durable construction ensure that it can handle the increased exhaust volume and pressure associated with performance upgrades.

Ensuring Proper Connection

Proper installation of the Exhaust Outlet Tube is essential for maintaining the integrity of the exhaust system. It must be correctly aligned and securely fastened to both the exhaust manifold and the exhaust pipe. This ensures that exhaust gases are directed efficiently, minimizing the risk of leaks and maximizing engine performance.

Conclusion

In summary, the Exhaust Outlet Tube (part 3905079) is a fundamental component in the exhaust system, facilitating the efficient transfer of exhaust gases and ensuring the smooth operation of the engine. Its role in repower applications and exhaust kits underscores its importance in both standard and performance-oriented engine setups.