3688976
Exhaust Collar
Cummins®

Introduction

The Exhaust Collar 3688976, a component manufactured by Cummins, is specifically designed for use in the exhaust systems of heavy-duty trucks. This part ensures the efficient operation of the exhaust system by facilitating secure connections between various components, such as the turbocharger and the exhaust manifold. Cummins, a renowned manufacturer in the automotive industry, produces this part with a focus on durability and performance ¹.

Basic Concepts of Exhaust Collars

An exhaust collar is a fitting used in the exhaust system to connect different components, ensuring a secure and leak-free seal. Its primary function is to maintain the integrity of the exhaust flow, preventing leaks that could reduce engine efficiency and increase emissions. The Exhaust Collar 3688976 interfaces with other components by providing a stable connection point that can withstand the high temperatures and pressures present in the exhaust system ².

Role of the Exhaust Collar 3688976 in Truck Operation

The Exhaust Collar 3688976 contributes to the efficient operation of the truck’s exhaust system by ensuring a proper seal between connected components. This seal is crucial for maintaining the correct exhaust flow, which helps in reducing emissions and enhancing engine performance. By providing a reliable connection, the exhaust collar optimizes the exhaust system’s efficiency, leading to improved overall truck performance ³.

Key Features

The Exhaust Collar 3688976 is designed with several key features that enhance its functionality and durability. It is made from high-quality materials that can withstand the extreme conditions of the exhaust system. The design of the collar includes precise dimensions and a robust construction to ensure a secure fit and long-lasting performance. Additionally, the collar may feature unique characteristics such as heat-resistant coatings or specialized gaskets to further enhance its durability and effectiveness.

Benefits

Using the Exhaust Collar 3688976 offers several benefits. It improves exhaust efficiency by ensuring a tight seal between components, which can lead to reduced emissions. The secure connection provided by the collar also helps in reducing wear on connected components, potentially increasing their lifespan. Furthermore, an efficient exhaust system can contribute to increases in fuel efficiency and engine longevity, making the Exhaust Collar 3688976 a valuable component in the maintenance and operation of heavy-duty trucks.

Troubleshooting and Maintenance

Common issues associated with exhaust collars include leaks due to wear or improper installation. Troubleshooting these problems involves inspecting the collar for signs of damage or wear and ensuring that it is properly installed. Regular maintenance practices, such as checking for leaks and ensuring the collar is securely fastened, can help in ensuring the longevity and optimal performance of the Exhaust Collar 3688976. It is also important to replace the collar if it shows signs of significant wear or damage to maintain the efficiency of the exhaust system.

About Cummins

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 itself as a leader in the diesel engine manufacturing industry. The company is committed to innovation and quality, continually striving to improve its products and services to meet the needs of its customers in the automotive and other industries.

Exhaust Collar 3688976 Compatibility with Cummins Engines

The Exhaust Collar part number 3688976, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is integral to the exhaust system, ensuring a secure and leak-free connection between the exhaust manifold and the exhaust pipe. Below is a detailed description of the engines with which this part is compatible.

Compatible Engines

1. 15N CM2380 M104B
2. ISX12 CM2350 X102
3. ISX12 G CM2180 EJ
4. ISX12/ISX11.9 CM2250
5. ISX15 CM2250
6. ISX15 CM2350 X101
7. QSX11.9 CM2250 ECF
8. QSX15 CM2250
9. QSX15 CM2250 ECF
10. QSX15 CM2350 X105
11. X12 CM2350 X119B
12. X12N CMMDG1 X143B
13. X15 CM2350 X116B
14. X15 CM2450 X134B

Grouping of Compatible Engines

The Exhaust Collar 3688976 is versatile and fits into several categories of Cummins engines, including:

• ISX Series Engines

  • ISX12 CM2350 X102
  • ISX12 G CM2180 EJ
  • ISX12/ISX11.9 CM2250
  • ISX15 CM2250
  • ISX15 CM2350 X101

• QSX Series Engines

  • QSX11.9 CM2250 ECF
  • QSX15 CM2250
  • QSX15 CM2250 ECF
  • QSX15 CM2350 X105

• X Series Engines

  • X12 CM2350 X119B
  • X12N CMMDG1 X143B
  • X15 CM2350 X116B
  • X15 CM2450 X134B

• Other Cummins Engines

  • 15N CM2380 M104B

This compatibility ensures that the Exhaust Collar 3688976 can be used across a broad range of Cummins engines, providing a reliable solution for maintaining the integrity of the exhaust system.

Role of Part 3688976 Exhaust Collar in Engine Systems

The 3688976 Exhaust Collar is an essential component in the arrangement of various engine systems, particularly those involving exhaust recirculation air. This component facilitates the smooth operation of the Exhaust Gas Recirculation (EGR) system, which is designed to reduce nitrogen oxides (NOx) emissions by recirculating a portion of the exhaust gas back into the intake manifold.

In the context of recirculation, the Exhaust Collar ensures a secure and efficient connection between the exhaust manifold and the EGR valve. This connection is vital for maintaining the integrity of the recirculated exhaust gases as they mix with the incoming air-fuel mixture. The collar’s design helps in minimizing leaks and ensuring that the recirculated gases are introduced into the combustion chamber at the correct pressure and temperature, thereby optimizing engine performance and emissions control.

Furthermore, the Exhaust Collar plays a significant role in the overall exhaust system arrangement. It contributes to the structural stability of the exhaust components, ensuring that the exhaust gases flow smoothly from the engine to the tailpipe. This not only enhances the efficiency of the exhaust system but also reduces the likelihood of backpressure, which can adversely affect engine performance.

Conclusion

In summary, the 3688976 Exhaust Collar is a key element in the effective functioning of engine systems involving exhaust recirculation and overall exhaust management. Its proper installation and maintenance are essential for ensuring optimal engine performance and compliance with emissions regulations.