3688488
Exhaust Manifold
Cummins®

IN STOCK

Cummins®

More than 10 are currently available

Ships within 1 business day

$419.95 $499.74

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

The Cummins 3688488 Exhaust Manifold is a component designed for use in commercial trucks. It plays a role in the operation of these vehicles by managing the flow of exhaust gases from the engine. Understanding its function and importance can provide insights into how it contributes to the overall performance and efficiency of the truck.

Basic Concepts of Exhaust Manifolds

An exhaust manifold is a part of the engine system that collects exhaust gases from the cylinders and directs them towards the exhaust system. Its function is to channel these gases away from the engine, ensuring that they are expelled efficiently. This process helps maintain engine performance and reduces the risk of overheating 1.

Purpose of the Cummins 3688488 Exhaust Manifold

This Cummins part is specifically engineered to enhance the operation of trucks by efficiently managing exhaust gases. It contributes to engine efficiency by ensuring that exhaust gases are directed away from the engine promptly. This helps maintain optimal engine temperature and performance, which is important for the reliable operation of commercial trucks.

Key Features

This part features a design that is tailored to meet the demands of heavy-duty applications. It is constructed from durable materials that can withstand high temperatures and pressures. Additionally, its design may include features that enhance its performance, such as improved gas flow characteristics and resistance to corrosion.

Benefits

Using this Cummins part offers several benefits. It contributes to improved engine performance by ensuring efficient exhaust gas management. Its durable construction enhances the longevity of the component, reducing the need for frequent replacements. Additionally, its design may offer advantages in terms of weight reduction and thermal efficiency compared to alternative components.

Installation Considerations

Proper installation of this part is important to ensure its effective operation. It is recommended to follow the guidelines provided by Cummins for installation. This may include ensuring proper alignment, using the correct fasteners, and verifying that all connections are secure. Adhering to these recommendations can help maintain the performance and durability of the manifold.

Troubleshooting and Maintenance

Common issues that may arise with this part include leaks, corrosion, and blockages. Regular inspection and maintenance can help identify and address these issues promptly. This may involve checking for signs of wear or damage, ensuring that connections are tight, and cleaning the manifold as needed. Proper maintenance practices can help ensure optimal performance and longevity.

Cummins Overview

Cummins Inc. is a well-established manufacturer with a reputation for producing high-quality automotive components. The company has a history of innovation and commitment to excellence in the industry. Its products, including the 3688488 Exhaust Manifold, are designed to meet the rigorous demands of commercial applications, providing reliable performance and durability.

Exhaust Manifold 3688488 Compatibility with Cummins Engines

The Exhaust Manifold part number 3688488, manufactured by Cummins, is designed to fit a variety of their engine models. This part is integral in managing the exhaust gases from the engine cylinders, ensuring efficient engine performance and emission control.

ISX15 Engines

  • ISX15 CM2250
  • ISX15 CM2350 X101

The Exhaust Manifold 3688488 is compatible with both the ISX15 CM2250 and ISX15 CM2350 X101 engines. These engines are part of Cummins’ ISX15 series, known for their robust performance and reliability in heavy-duty applications.

QSX15 Engines

  • QSX15 CM2250
  • QSX15 CM2250 ECF
  • QSX15 CM2350 X105

The Exhaust Manifold 3688488 is also suitable for the QSX15 CM2250, QSX15 CM2250 ECF, and QSX15 CM2350 X105 engines. These engines are part of the QSX15 series, which are designed for medium-duty applications, offering a balance of power and efficiency.

X15 Engines

  • X15 CM2350 X116B
  • X15 CM2450 X134B

Lastly, the Exhaust Manifold 3688488 fits the X15 CM2350 X116B and X15 CM2450 X134B engines. These engines are part of the X15 series, which are engineered for on-highway applications, providing high performance and fuel efficiency.

Role of Part 3688488 Exhaust Manifold in Engine Systems

The Exhaust Manifold, identified by part number 3688488, is integral to the efficient operation of an engine system. It serves as a conduit for the exhaust gases produced by the engine’s combustion process.

In an engine arrangement, the Exhaust Manifold collects exhaust gases from each cylinder and channels them into a single pipe, leading to the exhaust system. This consolidation is important for maintaining a smooth flow of gases, which in turn helps in optimizing engine performance and reducing backpressure 2.

When integrated with a turbocharger, the Exhaust Manifold plays a pivotal role. The turbocharger relies on the flow of exhaust gases to spin its turbine, which then drives the compressor side to intake more air into the engine. The design and efficiency of the Exhaust Manifold directly influence the turbocharger’s performance. A well-designed manifold ensures a consistent and powerful flow of exhaust gases, which is vital for the turbocharger to operate effectively and provide the desired boost in engine power 3.

Furthermore, the Exhaust Manifold contributes to the overall thermal management of the engine. By efficiently routing hot exhaust gases away from the engine block, it helps in maintaining optimal operating temperatures, which is beneficial for both performance and longevity of the engine components 4.

Conclusion

The Cummins 3688488 Exhaust Manifold is a critical component in the efficient operation of commercial truck engines. Its design and features are tailored to meet the demands of heavy-duty applications, ensuring reliable performance and durability. Proper installation, maintenance, and understanding of its role in engine systems are essential for maximizing its benefits and ensuring the optimal performance of the vehicle.


  1. Daniel Williams, Generalized Vehicle Dynamics, SAE International, 2022.

  2. Richard Stone, Introduction to Internal Combustion Engines, Fourth Edition, Macmillan, 2012.

  3. Composite Materials Handbook Volume 4 Metal Matrix Composites, SAE International, 2013.

  4. Gijs Mom, The Evolution of Automotive Engineering: A Handbook, SAE International, 2023.

SPECIFICATIONS

Package Dimensions
25.7 x 18.0 x 33.2 in
Weight
4.75 lbs
* 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.