4992726
Muffler
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$134.95 $160.59

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 Cummins Exhaust Muffler Part #4992726 is a component designed for use in commercial trucks. It serves to manage the noise produced by the engine’s exhaust system and plays a role in controlling emissions. This muffler is integral to the efficient operation of trucks, contributing to both performance and compliance with environmental regulations.

Basic Concepts of Exhaust Mufflers

An exhaust muffler is a device installed in the exhaust system of a vehicle to reduce the noise generated by the engine. It functions by redirecting the flow of exhaust gases through a series of chambers and baffles, which dissipate sound waves. Additionally, mufflers contribute to emission control by ensuring that exhaust gases are released in a manner that minimizes environmental impact 1.

Purpose of the 4992726 Exhaust Muffler

This Cummins part is specifically engineered to enhance the operation of trucks. It reduces engine noise, which contributes to a quieter driving environment. Furthermore, it aids in controlling emissions by ensuring that exhaust gases are processed efficiently before being released into the atmosphere. This muffler also supports performance enhancement by optimizing the exhaust flow, which can lead to improved engine efficiency 2.

Key Features

The 4992726 is characterized by its robust design and high-quality construction. It is made from durable materials that are resistant to corrosion and high temperatures, ensuring longevity and reliability. The muffler’s design includes multiple chambers and baffles that effectively reduce noise levels. Additionally, it is engineered to meet stringent emission standards, reflecting Cummins’ commitment to quality and environmental responsibility.

Benefits

The advantages of using this Cummins part include improved engine performance due to optimized exhaust flow. It also contributes to reduced noise levels, creating a more comfortable environment for drivers and passengers. Furthermore, this muffler supports enhanced fuel efficiency by ensuring that the engine operates within its optimal parameters. Compliance with emission standards is another significant benefit, as it helps truck operators meet regulatory requirements 3.

Installation Considerations

When installing the 4992726, it is important to follow guidelines and best practices to ensure proper fit and function. Compatibility with various truck models should be verified prior to installation. The process requires specific tools, and step-by-step instructions should be followed to achieve a secure and effective installation.

Maintenance and Troubleshooting

To ensure optimal performance, regular maintenance of the 4992726 is recommended. This includes inspecting for signs of wear or damage and cleaning as necessary. Common issues may include reduced efficiency or increased noise levels, which can often be addressed through routine maintenance or by following troubleshooting steps provided by the manufacturer.

Regulatory Compliance

The 4992726 is designed to comply with environmental regulations and emission standards. Trucks equipped with this muffler are able to meet legal requirements, ensuring that they operate within the bounds of environmental law and contribute to reduced environmental impact.

Customer Reviews and Feedback

Feedback from customers who have used the 4992726 indicates a high level of satisfaction with its performance and reliability. Users report improvements in engine noise levels and overall truck performance, attesting to the muffler’s effectiveness and quality.

About Cummins

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 reputation for quality in the automotive industry, Cummins is committed to providing reliable and efficient components for a wide range of applications, including commercial trucks.

Exhaust Muffler 4992726 Compatibility with Cummins Engines

The Exhaust Muffler part number 4992726 is designed to fit several Cummins engines, ensuring optimal performance and noise reduction. Here is a detailed look at its compatibility:

ISB/ISD4.5 CM2150 B119 and ISB/ISD6.7 CM2150 SN

The Exhaust Muffler 4992726 is compatible with both the ISB/ISD4.5 CM2150 B119 and ISB/ISD6.7 CM2150 SN engines. These engines are part of Cummins’ lineup known for their reliability and efficiency. The muffler is engineered to fit seamlessly into the exhaust system of these engines, providing effective noise reduction and maintaining the engine’s performance standards.

ISBE CM2150 and ISBE CM800

The Exhaust Muffler 4992726 also fits the ISBE CM2150 and ISBE CM800 engines. These engines are designed for heavy-duty applications, and the muffler is crafted to handle the demands of such environments. It ensures that the exhaust system operates efficiently, reducing noise and emissions while maintaining the engine’s power output.

ISBE4 CM850

Lastly, the Exhaust Muffler 4992726 is compatible with the ISBE4 CM850 engine. This engine is known for its robust performance and durability. The muffler is designed to integrate smoothly with the exhaust system of the ISBE4 CM850, providing the necessary noise reduction and maintaining the engine’s operational efficiency.

By ensuring compatibility with these engines, the Exhaust Muffler 4992726 offers a reliable solution for maintaining the performance and reducing the noise levels of Cummins engines.

Role of Part 4992726 Exhaust Muffler in Engine Systems

The 4992726 Exhaust Muffler is a component in the exhaust system of various engine setups. Its primary function is to reduce the noise produced by the engine’s exhaust gases. This is achieved through a series of chambers and tubes that alter the sound waves, resulting in a quieter operation.

In conjunction with the Air Compressor Kit, the Exhaust Muffler ensures that the noise generated by the compressor’s air discharge is minimized. The compressor generates high-pressure air, which, when released, can produce significant noise. The muffler helps in attenuating this sound, making the overall system quieter and more efficient.

When integrated with the Kit and Repto components, the Exhaust Muffler plays a role in maintaining the balance of the exhaust system. These components often involve intricate plumbing that directs exhaust gases away from the engine. The muffler, in this context, ensures that the gases are not only directed away but also that their noise is significantly reduced before they exit the system.

The interaction between the Muffler and the Plumbing is particularly noteworthy. Proper plumbing is essential for the efficient flow of exhaust gases. The muffler, by being a part of this plumbing, ensures that the gases are not only channeled correctly but also that their noise is managed effectively. This is vital for the overall performance and longevity of the engine system.

Lastly, the relationship between the Exhaust Muffler and the Compressor Air Discharge is significant. The discharge from the compressor can be loud, especially in high-pressure scenarios. The muffler, by being a part of the exhaust system, ensures that this noise is reduced, making the entire system more user-friendly and less intrusive.

Conclusion

The Cummins Exhaust Muffler Part #4992726 is a vital component for commercial trucks, offering noise reduction, emission control, and performance enhancement. Its robust design, compatibility with various Cummins engines, and compliance with environmental regulations make it a reliable choice for truck operators.


  1. Reif, K. (Ed.). (2014). Diesel Engine Management Systems and Components. Springer Vieweg.

  2. Fijalkowski, B.T. (2011). Automotive Mechatronics Operational and Practical Issues Volume 1. Springer.

  3. Cummins Inc. (n.d.). Service Manual (5504621).

* 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.