3689308
V Ribbed Belt
Cummins®

Introduction

The Cummins 3689308 V Ribbed Belt is a critical component for commercial trucks, facilitating the transfer of power from the engine to auxiliary components. Understanding its function and importance is essential for maintaining the efficiency and reliability of truck operations.

Basic Concepts of V Ribbed Belts

V Ribbed Belts, characterized by their trapezoidal cross-section, engage more effectively with pulleys compared to flat belts, enhancing power transmission efficiency and reducing slippage ¹. Constructed from a rubber compound reinforced with textile cords or steel wires, these belts offer flexibility and strength, differing from flat or timing belts in construction and application ².

Role of the 3689308 V Ribbed Belt in Truck Operation

This Cummins part transmits power from the engine to essential components such as the alternator, water pump, and air conditioning compressor, ensuring their correct function and contributing to the truck’s overall performance and reliability ³. Its design accommodates varying loads and speeds, making it vital for the truck’s power system.

Key Features of the 3689308 V Ribbed Belt

Designed with high-quality rubber compounds and reinforcing materials, this belt offers resistance to wear and environmental factors. It incorporates features that reduce noise and vibration, ensuring smoother operation and durability under demanding conditions.

Benefits of Using the 3689308 V Ribbed Belt

The efficient power transmission of this belt contributes to improved truck performance. Its durable construction reduces the need for frequent replacements, lowering maintenance costs. Reliable operation enhances the truck’s overall reliability, ensuring critical components receive the necessary power.

Troubleshooting Common Issues

Regular inspections for signs of wear, such as cracks or fraying, are crucial. Misalignment or tension problems can lead to inefficient power transmission and increased wear. Proper tensioning procedures and corrective actions, such as realigning components or adjusting tension, can help maintain performance and longevity.

Maintenance Tips

Regular maintenance, including inspections for wear or damage and proper tensioning, is recommended to ensure optimal performance and longevity. Replacement should be considered when significant wear is detected or when the belt reaches the end of its service life.

Cummins Overview

Cummins is renowned in the commercial truck industry for its commitment to quality and innovation. The company offers a range of products designed to enhance vehicle performance and reliability, with a reputation built on producing high-quality components.

V Ribbed Belt 3689308 Compatibility with Cummins Engines

This belt is compatible with the QSX15 CM2250, QSX15 CM2250 ECF, and QSX15 CM2350 X105 engines, ensuring optimal performance and durability. It is engineered to handle the unique demands of these engines, maintaining synchronization of ancillary systems.

Role of Part 3689308 V Ribbed Belt in Engine Systems

This part transfers rotational force from the engine’s crankshaft to auxiliary components, ensuring they operate in sync with the engine’s rhythm. It engages with the fan drive pulley to regulate engine temperature and connects to the water pump pulley to circulate coolant, maintaining optimal operating temperatures.

Conclusion

The Cummins 3689308 V Ribbed Belt is essential for the efficient operation of commercial trucks, offering durable and reliable performance. Regular maintenance and proper tensioning are key to ensuring its longevity and the overall reliability of the truck.