3104679
V Ribbed Belt
Cummins®

The Cummins 3104679 V Ribbed Belt is a critical component designed for use in commercial trucks. It facilitates the transfer of power from the engine to various auxiliary components, ensuring the efficient and reliable operation of these vehicles. Understanding its function and importance is essential for maintaining truck efficiency and reliability.

Basic Concepts of V Ribbed Belts

V Ribbed Belts, characterized by their trapezoidal cross-section, are designed to grip pulleys more effectively than flat belts. They transmit power through friction between the belt and the pulleys, driving engine accessories such as the alternator, water pump, and air conditioning compressor. This design offers advantages in efficiency and durability in high-torque applications ¹.

Purpose of the Cummins 3104679 V Ribbed Belt

The Cummins 3104679 V Ribbed Belt is integral to the operation of a truck, driving essential components such as the alternator, water pump, and other engine accessories. It supports systems vital for the engine’s operation, including electrical power generation, engine cooling, and climate control. The efficient transfer of power by this belt ensures these systems operate smoothly, contributing to the overall performance and reliability of the truck ².

Key Features

This Cummins part is constructed using high-quality materials and incorporates design elements that enhance its performance and durability. It features a robust rubber compound for the belt body, reinforced with textile cords for strength. The V-shaped ribs on the belt’s surface are designed to maximize contact with pulleys, reducing slippage and improving power transmission. Additionally, the belt’s construction includes protective layers to resist wear and environmental factors, ensuring long-term reliability ³.

Benefits

Using the Cummins 3104679 V Ribbed Belt offers several benefits, including improved efficiency in power transmission, reduced maintenance requirements due to its durable construction, and enhanced reliability in demanding truck applications. Its design contributes to lower operating temperatures and reduced noise levels, further enhancing the performance and comfort of the vehicle ⁴.

Installation Considerations

When installing the Cummins 3104679 V Ribbed Belt, it is important to follow guidelines and best practices to ensure proper function and longevity. This includes ensuring correct tensioning to prevent slippage and excessive wear, aligning the belt correctly on pulleys to avoid uneven wear, and adhering to any specific requirements for different truck models. Proper installation is key to maximizing the belt’s performance and durability ⁵.

Troubleshooting Common Issues

Common problems associated with V Ribbed Belts include slippage, wear, and noise. Slippage can occur if the belt is not properly tensioned or if there is contamination on the pulleys. Wear may indicate that the belt has exceeded its service life or that there are alignment issues. Noise can be a sign of belt or pulley damage. Troubleshooting these issues involves inspecting the belt and pulleys for signs of damage or misalignment, cleaning or replacing components as necessary, and ensuring proper tension and alignment ⁶.

Maintenance Tips

To ensure optimal performance and longevity of the Cummins 3104679 V Ribbed Belt, regular maintenance is recommended. This includes periodic inspections for signs of wear or damage, cleaning the belt and pulleys to remove contaminants that could cause slippage, and replacing the belt according to the manufacturer’s guidelines or when signs of excessive wear are observed. Adhering to these maintenance practices helps maintain the efficiency and reliability of the truck’s auxiliary systems ⁷.

Cummins 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 commercial truck industry. Its product range includes engines, powertrain components, and aftermarket parts, all designed to meet the demanding requirements of commercial vehicle applications. Cummins’ commitment to excellence and customer satisfaction has made it a trusted name in the industry ⁸.

Role of Part 3104679 V Ribbed Belt in Engine Systems

The V Ribbed Belt, identified by part number 3104679, is integral to the efficient operation of various engine components. It serves as the primary means of transferring power from the engine’s crankshaft to auxiliary components, ensuring they function in unison with the engine’s operation.

Integration with Fan Drive

When considering the fan drive, the V Ribbed Belt is responsible for transmitting rotational force from the crankshaft to the fan. This transmission is essential for maintaining optimal engine temperature. As the engine operates, it generates heat. The fan, driven by the V Ribbed Belt, circulates air through the radiator, cooling the engine coolant. This process is vital for preventing overheating and ensuring the engine operates within its designed temperature range ⁹.

The efficiency of the V Ribbed Belt in this application depends on its proper tension and alignment. If the belt is too loose, it may slip, reducing the fan’s effectiveness and leading to inadequate cooling. Conversely, if it is too tight, it can place undue stress on the belt and the fan drive system, potentially leading to premature wear or failure.

In summary, the V Ribbed Belt plays a significant role in the fan drive system by ensuring the fan operates efficiently, thereby contributing to the overall thermal management of the engine.

Conclusion

The Cummins 3104679 V Ribbed Belt is a vital component in the operation of commercial trucks, ensuring the efficient transfer of power to essential engine accessories. Its robust construction, precise engineering, and compatibility with various engine models underscore Cummins’ commitment to providing high-quality, reliable components. Proper installation, maintenance, and troubleshooting are essential for maximizing the belt’s performance and durability, contributing to the overall efficiency and reliability of truck operations.