3260651
Lubricating Oil Cooler
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$2,599.95 $3,093.94

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

The Cummins 3260651 Lubricating Oil Cooler is a component designed to regulate the temperature of engine oil in heavy-duty trucks. Its role is significant in maintaining the efficiency and longevity of the engine by ensuring that the oil remains within optimal temperature ranges.

Basic Concepts of Lubricating Oil Coolers

A lubricating oil cooler is a device that reduces the temperature of engine oil after it has circulated through the engine. It operates on the principle of heat exchange, where the hot oil transfers some of its heat to a cooler medium, typically the ambient air or a liquid coolant. This process helps in dissipating excess heat, which can otherwise lead to oil degradation and increased engine wear 1.

Purpose of the Cummins 3260651 Lubricating Oil Cooler

The Cummins 3260651 Lubricating Oil Cooler is designed to maintain the engine oil at an optimal temperature. By doing so, it contributes to efficient engine performance and helps in prolonging the engine’s operational life. Proper oil temperature is vital for maintaining the oil’s viscosity, which affects its lubricating properties and its ability to protect engine components from wear and tear 2.

Key Features

The Cummins 3260651 Lubricating Oil Cooler is constructed with high-quality materials to ensure durability and efficiency. Its design facilitates effective heat exchange, integrating seamlessly with the truck’s engine system. The cooler is engineered to handle the demanding conditions of heavy-duty truck operations, providing reliable performance under various driving scenarios.

Benefits of Using the Cummins 3260651 Lubricating Oil Cooler

Employing the Cummins 3260651 Lubricating Oil Cooler offers several advantages. It enhances engine reliability by maintaining consistent oil temperatures, which is crucial for engine health. Additionally, it can contribute to improved fuel efficiency as the engine operates more efficiently with properly cooled oil. Furthermore, the use of this cooler may reduce maintenance requirements by preventing oil-related engine issues 3.

Installation Considerations

When installing the Cummins 3260651 Lubricating Oil Cooler, it is important to follow guidelines to ensure compatibility with the truck’s engine system. Proper installation involves checking for compatibility with the specific truck model and engine type, and adhering to the manufacturer’s instructions to integrate the cooler effectively into the engine’s oil circulation system.

Troubleshooting Common Issues

Lubricating oil coolers may encounter issues such as leaks, reduced cooling efficiency, or blockages. Diagnostic methods include visual inspections, pressure tests, and flow rate assessments. Solutions may involve repairing leaks, cleaning or replacing components, or addressing any obstructions within the cooler’s pathways to restore optimal performance.

Maintenance Tips

Routine maintenance of the Cummins 3260651 Lubricating Oil Cooler includes regular inspections for signs of wear or damage, cleaning to remove any contaminants, and checking for proper operation. Maintenance intervals should be in accordance with the manufacturer’s recommendations. If the cooler shows signs of significant wear or failure to maintain oil temperatures, consideration should be given to repair or replacement.

Cummins: A Brief Overview

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 a reputation for quality and innovation in the automotive and heavy-duty truck industry. The company’s product range includes a variety of engines and components designed to meet the demanding requirements of commercial vehicles.

Cummins Lubricating Oil Cooler Part 3260651 Compatibility

The Cummins lubricating oil cooler part number 3260651 is designed to fit seamlessly with several engine models, ensuring optimal performance and longevity. This part is engineered to provide efficient cooling for the engine’s lubricating oil, which is crucial for maintaining engine health and efficiency.

NH/NT 855 Engines

The part 3260651 is specifically compatible with the NH/NT 855 engines. These engines are known for their robust design and reliability, making them a popular choice in various industrial and commercial applications. The lubricating oil cooler ensures that the oil remains at an optimal temperature, preventing overheating and extending the engine’s lifespan.

Group Compatibility

In addition to the NH/NT 855 engines, the part 3260651 is also compatible with other engines within the same group. This compatibility ensures that users can easily replace or upgrade their lubricating oil coolers without worrying about compatibility issues. The design of the part is standardized across these engines, allowing for a straightforward installation process.

Installation and Maintenance

Proper installation of the Cummins lubricating oil cooler part 3260651 is essential for maintaining engine performance. It is recommended to follow the manufacturer’s guidelines for installation to ensure that the cooler is correctly positioned and securely attached. Regular maintenance checks should also be performed to ensure that the cooler is functioning correctly and to replace any worn or damaged components promptly.

Performance Benefits

Using the Cummins lubricating oil cooler part 3260651 offers several performance benefits. It helps in maintaining the viscosity of the engine oil, which is critical for efficient lubrication. By keeping the oil at an optimal temperature, the cooler reduces the risk of engine wear and tear, leading to improved reliability and reduced maintenance costs over time.

Role of Part 3260651 Lubricating Oil Cooler in Engine Systems

In engine systems, the lubricating oil cooler, identified by part number 3260651, is an integral component that ensures the engine oil remains within optimal temperature ranges. This is achieved through a heat exchange process where the hot engine oil is circulated through the cooler, allowing it to dissipate excess heat before returning to the engine.

The lubricating oil cooler works in conjunction with the engine oil system to maintain the viscosity and performance of the oil. As the engine operates, it generates significant heat, which is absorbed by the circulating engine oil. If this oil becomes too hot, its lubricating properties degrade, leading to increased friction and potential engine damage. The cooler lub oil system addresses this by transferring the heat from the oil to a cooler medium, typically air or a liquid coolant, depending on the specific design of the cooling system.

In more complex engine systems, the lubricating oil cooler may be part of a larger cooling network that includes other coolers for transmission fluid, hydraulic fluid, or even charge air. In such setups, the cooler lub oil not only serves its primary function but also contributes to the overall thermal management of the engine system. This integrated approach helps in maintaining the efficiency and reliability of the engine by ensuring that all critical fluids are kept at their optimal operating temperatures.

Conclusion

The Cummins 3260651 Lubricating Oil Cooler plays a vital role in maintaining the efficiency and longevity of heavy-duty truck engines by ensuring that engine oil remains within optimal temperature ranges. Its design and construction are tailored to handle the demanding conditions of heavy-duty operations, providing reliable performance and contributing to improved engine reliability and fuel efficiency. Proper installation, maintenance, and understanding of its compatibility and benefits are essential for maximizing the performance and lifespan of the engine.


  1. Van Gelder, K. T. (2018). Fundamentals of Automotive Technology Principles and Practice. Jones Bartlett Learning.

  2. Boyce, M. P. (2002). Gas Turbine Engineering Handbook, Second Edition. Gulf Professional Publishing.

  3. Miedema, S. A., & Lu, Z. (2010). The Dynamic Behavior of a Diesel Engine. Published by Drir S. A. Miedema.

SPECIFICATIONS

Hazard Description
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
104.6 x 41.4 x 11.5 in
Weight
45 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.