4935250
Fan Clutch
Cummins®

Introduction

The Cummins 4935250 Fan Clutch is a component designed for heavy-duty truck applications. It is engineered to enhance the efficiency of the engine cooling system by managing the fan speed according to the engine’s needs. This part plays a role in maintaining optimal engine temperature, which is important for the performance and longevity of the engine.

Basic Concepts of Fan Clutches

A fan clutch is a device that connects the engine-driven fan to the vehicle’s cooling system. It operates by varying the fan speed in response to the engine’s temperature, thereby optimizing cooling efficiency. There are two primary types of fan clutches: mechanical and viscous. Mechanical fan clutches use a thermostatic spring to engage and disengage the fan, while viscous fan clutches utilize a silicone-based fluid that changes viscosity with temperature to control fan speed ¹.

Purpose of the Cummins 4935250 Fan Clutch

The Cummins 4935250 Fan Clutch is designed to regulate the airflow through the radiator, ensuring that the engine maintains an optimal operating temperature. By adjusting the fan speed based on the engine’s temperature, it helps in reducing unnecessary strain on the engine, which can lead to improved fuel efficiency and reduced wear on engine components ².

Key Features

The Cummins 4935250 Fan Clutch boasts several features that enhance its performance. Its design incorporates high-quality materials that ensure durability and reliability under demanding conditions. Additionally, it includes technological advancements such as a thermostatic control system that precisely manages fan operation, contributing to efficient cooling and fuel savings.

Benefits of Using the Cummins 4935250 Fan Clutch

Utilizing the Cummins 4935250 Fan Clutch offers several advantages. It contributes to improved fuel efficiency by reducing the load on the engine when full fan speed is not required. This reduction in load also leads to decreased engine wear. Furthermore, the fan clutch provides enhanced cooling performance across various operating conditions, ensuring the engine remains within its optimal temperature range ³.

Installation and Compatibility

Proper installation of the Cummins 4935250 Fan Clutch is vital for ensuring its effective operation. It is important to follow the manufacturer’s guidelines to achieve the best performance. Compatibility with specific truck models and engine types should be verified to ensure seamless integration into the vehicle’s cooling system.

Maintenance and Troubleshooting

To maintain the Cummins 4935250 Fan Clutch in optimal condition, regular inspections and maintenance are recommended. Common issues may include fluid leaks in viscous fan clutches or worn components in mechanical types. Troubleshooting steps should involve checking for proper operation, inspecting for wear or damage, and following the recommended maintenance schedule to prevent potential problems.

Performance in Various Conditions

The Cummins 4935250 Fan Clutch is designed to perform efficiently under a range of driving conditions. Whether in highway driving, city traffic, or extreme temperatures, it adapts to maintain optimal engine cooling. Its efficiency is particularly noticeable in scenarios where the engine’s cooling demands vary significantly, such as during stop-and-go traffic or when towing heavy loads.

Comparison with Other Fan Clutches

When compared to other fan clutches in the market, the Cummins 4935250 Fan Clutch stands out due to its precise thermostatic control and durable construction. Differences in design and performance can be observed, with the Cummins model often providing a balance of efficiency, durability, and reliability that meets the demanding requirements of heavy-duty truck applications.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a strong reputation in the automotive industry, particularly for diesel engines and related components, Cummins has been at the forefront of innovation and quality for over a century. The company’s commitment to excellence is reflected in its products, including the Cummins 4935250 Fan Clutch.

Fan Clutch Compatibility with Cummins Engines

The Cummins Fan Clutch part number 4935250 is designed to fit seamlessly with various Cummins engine models, ensuring optimal cooling efficiency and performance. This part is engineered to work with the following Cummins engines:

• 6B5.9

The Fan Clutch part number 4935250 is specifically tailored to integrate with the cooling systems of these engines, providing a reliable and efficient means of managing engine temperature. This compatibility ensures that the fan clutch operates effectively, enhancing the overall performance and longevity of the engine.

Role of Part 4935250 Fan Clutch in Engine Systems

The part 4935250 Fan Clutch is an integral component in the efficient operation of the engine cooling system. It is designed to optimize the balance between engine cooling and fuel efficiency.

Interaction with the Fan

The fan clutch connects the engine-driven fan to the engine itself. Its primary function is to modulate the fan’s speed in response to the engine’s operating conditions. When the engine is cold, the fan clutch disengages, allowing the fan to spin freely with minimal resistance. This reduces the load on the engine, enhancing fuel efficiency during the warm-up phase. As the engine temperature rises, the fan clutch gradually engages, increasing the fan’s speed to ensure adequate cooling. This dynamic adjustment helps maintain optimal engine temperature while minimizing unnecessary strain on the engine.

Contribution to Engine Performance

By efficiently managing the fan’s operation, the part 4935250 Fan Clutch plays a significant role in overall engine performance. During high-load situations or hot weather, the fan clutch ensures that the engine remains within safe operating temperatures by increasing airflow through the radiator. Conversely, during low-load conditions or cooler weather, it reduces fan speed to decrease parasitic losses, thereby improving fuel economy.

This component is important for maintaining a harmonious balance between cooling efficiency and engine performance, ensuring that the engine operates smoothly under a variety of conditions.

Conclusion

The Cummins 4935250 Fan Clutch is a vital component in the engine cooling system of heavy-duty trucks. Its ability to adjust fan speed according to engine temperature ensures optimal cooling efficiency, improved fuel economy, and reduced engine wear. Proper installation, regular maintenance, and understanding its role in engine performance are key to maximizing the benefits of this Cummins part.