3935812
Oil Cooler
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$1,099.95 $1,308.94

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 3935812 Oil Cooler is a component designed to regulate the temperature of engine oil in commercial trucks. Its role is significant in maintaining the operational integrity and efficiency of the engine. By ensuring that the oil remains within optimal temperature ranges, this part contributes to the overall performance and longevity of the engine 1.

Basic Concepts of Oil Coolers

An oil cooler is a heat exchanger that helps manage the temperature of engine oil. It operates by transferring excess heat from the oil to the surrounding air or coolant, depending on the design. This process is vital for maintaining the viscosity and lubricating properties of the oil, which are necessary for reducing friction and wear within the engine 2.

Purpose of the Cummins 3935812 Oil Cooler

The Cummins 3935812 Oil Cooler is instrumental in maintaining the optimal temperature of engine oil. By doing so, it ensures that the oil retains its lubricating properties, which are necessary for efficient engine operation. This regulation of oil temperature helps in preserving engine components from excessive wear and tear, thereby extending the engine’s operational life 3.

Key Features

The Cummins 3935812 Oil Cooler is characterized by its robust design and the use of high-quality materials. These attributes contribute to its durability and effectiveness in heat exchange. The cooler’s design facilitates efficient heat dissipation, ensuring that the engine oil remains at an optimal temperature under various operating conditions.

Benefits of Using the Cummins 3935812 Oil Cooler

Incorporating the Cummins 3935812 Oil Cooler into a truck’s engine system offers several advantages. It enhances engine efficiency by maintaining oil at the correct temperature, which reduces friction and wear on engine components. Additionally, it contributes to overall engine performance by ensuring that the oil’s lubricating properties are preserved, even under demanding conditions.

Installation Considerations

Proper installation of the Cummins 3935812 Oil Cooler is important for its effective operation. It is recommended to follow manufacturer guidelines to ensure that the cooler is correctly positioned and securely mounted. Attention should be given to the alignment of connections to prevent leaks and ensure efficient coolant or air flow through the cooler.

Maintenance and Troubleshooting

Regular maintenance of the Cummins 3935812 Oil Cooler is important for its longevity and performance. This includes periodic inspections for signs of wear, corrosion, or leaks. Common issues may involve blockages within the cooler, which can impede heat exchange. Troubleshooting steps may include cleaning the cooler or, in some cases, replacement of damaged components.

Performance Impact

The Cummins 3935812 Oil Cooler plays a role in influencing the overall performance and efficiency of a truck’s engine. By maintaining optimal oil temperature, it contributes to improved fuel economy and can lead to reductions in emissions. This is achieved through the preservation of oil’s lubricating properties, which minimize friction and enhance engine efficiency.

Cummins Overview

Cummins Inc. is a well-established manufacturer in the commercial truck industry, known for its wide range of engine and component products. The company has a history of innovation and quality, which is reflected in its product offerings. Cummins components, including the 3935812 Oil Cooler, are designed with a focus on reliability, performance, and durability, catering to the demanding requirements of commercial trucking.

Role of Part 3935812 Oil Cooler in Engine Systems

The 3935812 Oil Cooler is an essential component in maintaining the optimal operating temperature of the torque converter oil within an engine system. By facilitating the transfer of excess heat from the oil, the cooler ensures that the torque converter operates efficiently and reliably.

When the engine is running, the torque converter oil absorbs a significant amount of heat due to the friction and mechanical stresses within the transmission system. The 3935812 Oil Cooler intercepts this heated oil, passing it through a series of fins and tubes designed to maximize heat dissipation. As the oil circulates through the cooler, it releases heat to the surrounding air, which is often aided by the vehicle’s movement or a dedicated cooling fan.

This cooled oil then returns to the torque converter, where it helps to maintain a stable temperature. Consistent oil temperature is vital for the viscosity of the oil to remain within the desired range, ensuring smooth power transmission and reducing the risk of overheating-related damage.

Conclusion

In summary, the Cummins 3935812 Oil Cooler plays a significant role in the thermal management of the torque converter oil, contributing to the overall efficiency and longevity of the engine system. Its design and functionality are integral to maintaining optimal engine performance and durability.


  1. Denton, T., & Pells, H. (2022). Automotive Technician Training Theory. Routledge.

  2. Duffy, O. C., & Wright, G. (2016). Fundamentals of Medium-Heavy Duty Commercial Vehicle Systems. Jones Bartlett Learning.

  3. Eret, A. (2024). Dynamic and Fatigue Assessment of Heavy-Duty Engine Valves. Springer Nature.

SPECIFICATIONS

Package Dimensions
17.0 x 11.88 x 12.13 in
Weight
11.83 lb
* 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.