4900935
Fan Pulley
Cummins®

The Cummins 4900935 Fan Pulley is a component designed for use in heavy-duty trucks. It plays a role in the operation of these vehicles by facilitating efficient engine cooling. This pulley is integral to maintaining optimal engine temperature, which is vital for the performance and longevity of the truck.

Basic Concepts of a Fan Pulley

A fan pulley is a mechanical device that connects the engine to the cooling fan. It operates by transferring rotational force from the engine to the fan, which in turn moves air across the radiator to cool the engine. The fan pulley interacts with several components, including the engine, fan clutch, and radiator, to ensure effective heat dissipation ¹.

Purpose of the 4900935 Fan Pulley

This Cummins part is designed to transfer power from the engine to the cooling fan. This transfer is crucial for maintaining the engine’s operating temperature within a safe range. By ensuring that the cooling fan operates efficiently, the pulley helps to prevent overheating, which can lead to engine damage ².

Key Features

The 4900935 boasts several key features that enhance its performance and durability. Its design incorporates high-quality materials that resist wear and corrosion. Additionally, the pulley is engineered to provide a precise fit and smooth operation, reducing the likelihood of mechanical issues.

Benefits

The use of the 4900935 offers several benefits. It contributes to improved engine cooling efficiency, which helps to maintain optimal engine performance. Additionally, by ensuring effective cooling, the pulley can reduce wear on engine components, leading to enhanced overall performance and longevity of the truck.

Installation Process

Installing this part requires careful attention to detail. The process involves aligning the pulley with the engine’s crankshaft and securing it in place using the appropriate tools. It is important to ensure that the pulley is correctly fitted to avoid any issues with engine cooling.

Troubleshooting Common Issues

Common problems associated with fan pulleys include noise, vibration, and overheating. These issues can often be traced back to improper installation, wear and tear, or mechanical failures. Troubleshooting steps may involve inspecting the pulley for signs of damage, ensuring it is correctly aligned, and checking for any loose connections ³.

Maintenance Tips

Regular maintenance of the 4900935 is important for ensuring its longevity and optimal performance. This includes periodic inspections for signs of wear or damage, such as cracks or excessive play. Additionally, keeping the pulley clean and free from debris can help to prevent issues related to overheating or mechanical failure.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. 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 engines, filtration systems, and other components designed to enhance the performance and efficiency of vehicles.

Fan Pulley Part 4900935 Compatibility with Cummins Engines

The Fan Pulley part number 4900935, manufactured by Cummins, is designed to be compatible with a range of Cummins engines. This part is integral to the engine’s cooling system, ensuring that the fan operates efficiently to maintain optimal engine temperature.

A1400 and A1700 Engines

The Fan Pulley part 4900935 is specifically engineered to fit the A1400 and A1700 engines. These engines are part of Cummins’ lineup of smaller, yet robust, diesel engines. The pulley’s design ensures a secure fit and reliable performance, facilitating the transfer of power from the engine to the fan, which is crucial for maintaining the cooling system’s efficiency.

A2000 and A2300 Engines

Similarly, the Fan Pulley part 4900935 is also compatible with the A2000 and A2300 engines. These engines are larger and more powerful compared to the A1400 and A1700 models. The pulley’s design accommodates the increased power output and torque requirements of these engines, ensuring that the fan operates at the necessary speed to dissipate heat effectively.

Grouping for Compatibility

The Fan Pulley part 4900935 is designed with a standardized fitment across the A1400, A1700, A2000, and A2300 engines. This standardization allows for easier maintenance and replacement, as the same part can be used across multiple engine models. This compatibility is particularly beneficial for fleets and operators who use multiple engine types, as it simplifies inventory management and reduces the need for multiple part types.

By ensuring that the Fan Pulley part 4900935 fits seamlessly with the A1400, A1700, A2000, and A2300 engines, Cummins maintains a high level of reliability and performance across its engine range. This compatibility is a testament to Cummins’ commitment to providing durable and efficient engine components.

Role of Part 4900935 Fan Pulley in Engine Systems

The part 4900935 fan pulley is an integral component in the efficient operation of engine systems, specifically in the coordination between the drive system and the fan.

Interaction with the Drive System

The fan pulley interfaces directly with the drive system, typically through a belt mechanism. This pulley is responsible for transmitting rotational force from the engine’s crankshaft to the fan. The consistent and smooth transfer of this force ensures that the fan operates at the optimal speed necessary for effective engine cooling. The pulley’s design allows for efficient power transmission with minimal energy loss, contributing to the overall efficiency of the engine system.

Coordination with the Fan

Once the rotational force is transmitted via the drive system, the fan pulley plays a key role in regulating the fan’s speed. Depending on the engine’s operational demands, the pulley can adjust the fan speed to maintain appropriate cooling levels. This is particularly important under varying load conditions or during different phases of engine operation, such as idling versus high-performance modes. The pulley’s ability to modulate fan speed helps in maintaining engine temperature within safe operating ranges, thereby enhancing engine longevity and performance.

Overall System Integration

In summary, the part 4900935 fan pulley serves as a vital link between the drive system and the fan, ensuring that the engine remains cool and operates efficiently. Its role in power transmission and speed regulation is essential for the harmonious functioning of these components, ultimately contributing to the engine’s reliability and performance.

Conclusion

The Cummins 4900935 Fan Pulley is a critical component in the cooling system of heavy-duty trucks. Its design and functionality ensure efficient engine cooling, which is essential for maintaining optimal engine performance and longevity. Proper installation, regular maintenance, and understanding its role within the engine system are key to maximizing the benefits of this component.