3968807
Heat Exchanger
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$21,999.95 $26,179.94

Oversize Item

This is an oversize product. Additional shipping fees may apply.

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 3968807 Heat Exchanger is a specialized component designed for use in commercial trucks. Its purpose is to facilitate the transfer of heat between two or more fluids without mixing them, playing a role in maintaining optimal operating temperatures within the engine and other critical systems. This heat exchanger is integral to the efficient and reliable operation of commercial trucks, ensuring that engines run smoothly and efficiently under various conditions.

Basic Concepts of Heat Exchangers

A heat exchanger is a system used to transfer heat between two or more fluids. These fluids can be liquids, gases, or a combination of both. The principle behind a heat exchanger’s operation is based on the laws of thermodynamics, specifically the conservation of energy. Heat exchangers work by allowing heat to pass from a warmer fluid to a cooler one through a solid barrier, which separates the fluids. This process is important for regulating temperatures in various applications, including automotive and industrial systems 1.

Role of the 3968807 Heat Exchanger in Truck Operation

The Cummins 3968807 Heat Exchanger plays a specific role in the operation of commercial trucks by integrating into the engine cooling system and other relevant subsystems. It helps maintain the engine’s operating temperature within a specified range, ensuring efficient performance and preventing overheating. Additionally, this heat exchanger may be involved in other systems, such as the transmission or turbocharger, where temperature regulation is crucial for optimal operation.

Key Features of the 3968807 Heat Exchanger

The Cummins 3968807 Heat Exchanger is characterized by several key features that enhance its performance and durability. Its design is engineered to maximize heat transfer efficiency while minimizing pressure drop. The materials used in its construction are selected for their thermal conductivity, corrosion resistance, and mechanical strength. Unique attributes, such as compact size and lightweight, contribute to its effectiveness in demanding commercial truck applications.

Benefits of Using the 3968807 Heat Exchanger

Utilizing the Cummins 3968807 Heat Exchanger offers several advantages for commercial truck operators. These include improved engine efficiency, enhanced reliability, and potential cost savings. By maintaining optimal operating temperatures, this heat exchanger contributes to better fuel economy and reduced wear on engine components. Its durable construction and efficient design also mean fewer maintenance requirements and longer service life, providing economic benefits to fleet operators 2.

Installation and Integration

When installing the Cummins 3968807 Heat Exchanger in a commercial truck, it is important to consider compatibility with the specific engine type and integration into existing systems. Proper installation ensures that the heat exchanger functions as intended, contributing to the overall efficiency and reliability of the truck. Guidelines for installation may include ensuring correct fluid flow direction, securing all connections, and verifying system compatibility to avoid issues.

Maintenance and Troubleshooting

To ensure the optimal performance of the Cummins 3968807 Heat Exchanger, regular maintenance is recommended. This includes periodic inspections for signs of wear, corrosion, or leaks, as well as cleaning procedures to remove any buildup that could impede heat transfer. Common troubleshooting steps for addressing issues may involve checking fluid levels, inspecting connections for leaks, and ensuring proper system operation. Adhering to these maintenance practices helps prolong the life of the heat exchanger and maintain its efficiency.

Performance and Efficiency

The Cummins 3968807 Heat Exchanger contributes to the overall performance and efficiency of the truck by effectively regulating engine temperature. This regulation leads to measurable improvements in engine temperature stability and can enhance fuel economy by ensuring the engine operates within its optimal temperature range. The efficient design of the heat exchanger also minimizes energy loss, further contributing to the truck’s overall efficiency.

Environmental Impact

Using the Cummins 3968807 Heat Exchanger can have positive environmental impacts. By improving engine efficiency and reducing the need for frequent replacements, this heat exchanger contributes to lower emissions and enhanced sustainability in truck operations. Its efficient heat transfer capabilities help minimize fuel consumption, which in turn reduces the carbon footprint of commercial truck fleets 3.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions solutions. With a history spanning over a century, Cummins has established a reputation for innovation, quality, and reliability in the commercial truck industry. The company’s extensive product portfolio and commitment to sustainability underscore its expertise in manufacturing components like the 3968807 Heat Exchanger, ensuring that commercial truck operators have access to high-quality, efficient, and reliable parts.

Compatibility of Cummins Heat Exchanger 3968807

The Cummins Heat Exchanger part number 3968807 is designed to fit seamlessly with various engine models, ensuring optimal performance and efficiency. This heat exchanger is engineered to manage and transfer heat effectively within the engine system, contributing to the overall cooling and heating processes.

K19 Engine Series

For the K19 engine series, the Cummins Heat Exchanger 3968807 is a critical component that integrates smoothly into the engine’s cooling system. Its design ensures that it can handle the specific thermal demands of the K19 engines, providing reliable heat exchange capabilities that are essential for maintaining engine performance and longevity.

Grouping of Compatible Engines

The Cummins Heat Exchanger 3968807 is not limited to the K19 series alone. It is also compatible with other engine models within the Cummins lineup that share similar thermal management requirements. This compatibility extends to various industrial and commercial engine applications, ensuring that the heat exchanger can be utilized across a range of engine types.

By ensuring that the heat exchanger fits perfectly with these engines, Cummins maintains its reputation for producing high-quality, reliable components that enhance engine performance and efficiency.

Role of Part 3968807 Heat Exchanger in Engine Systems

The part 3968807 heat exchanger is a component in various engine systems, facilitating efficient thermal management. It operates by transferring heat between two or more fluids at different temperatures without them coming into direct contact. This process is vital for maintaining optimal operating temperatures within the engine system.

In the context of an internal combustion engine, the heat exchanger works in conjunction with the radiator, thermostat, and coolant system. It helps dissipate excess heat generated by the engine, ensuring that the engine operates within its specified temperature range. This is achieved by circulating coolant through the heat exchanger, where it absorbs heat from the engine and transfers it to the surrounding air.

Additionally, the heat exchanger plays a role in the turbocharger system. In turbocharged engines, the heat exchanger, often referred to as an intercooler, is positioned between the turbocharger and the intake manifold. Its function is to cool the compressed air from the turbocharger before it enters the combustion chamber. This cooling process increases the air density, allowing for more efficient combustion and improved engine performance.

Furthermore, in diesel engine systems, the heat exchanger is integral to the exhaust gas recirculation (EGR) system. It cools the recirculated exhaust gases before they are reintroduced into the intake tract. This cooling reduces the temperature of the intake charge, lowering the formation of nitrogen oxides (NOx) and contributing to a cleaner combustion process.

In summary, the part 3968807 heat exchanger is a versatile component that enhances the efficiency and performance of engine systems by effectively managing thermal energy. Its integration with various engine components ensures that the engine operates smoothly and efficiently under varying conditions.

Conclusion

The Cummins 3968807 Heat Exchanger is a critical component for maintaining optimal engine performance and efficiency in commercial trucks. Its design and features contribute to better fuel economy, reduced emissions, and enhanced reliability. Proper installation, regular maintenance, and understanding its role in engine systems are essential for maximizing the benefits of this heat exchanger.


  1. Dempsey, Paul. Troubleshooting and Repairing Diesel Engines. McGraw-Hill, 2008.

  2. Crolla, David. Crolla Encyclopedia. Wiley, 2015.

  3. Zhao, Hua. Advanced Direct Injection Combustion Engine Technologies and Development Volume 2 Diesel Engines. CRC Press, 2010.

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SPECIFICATIONS

Service Part Topic
04T8-4
Package Dimensions
25.75 x 13.25 x 17.0 in
Weight
149 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.