3289739
V Ribbed Belt
Cummins®

Introduction

The Cummins 3289739 V-Ribbed Drive Belt is a component designed for use in commercial trucks. Its purpose is to transfer power from the engine to various auxiliary components, ensuring the efficient operation of the vehicle. This drive belt is significant in maintaining the functionality of critical systems within the truck, contributing to overall performance and reliability.

Basic Concepts of V-Ribbed Drive Belts

V-Ribbed Drive Belts are characterized by their trapezoidal cross-section, which allows for a larger contact area compared to flat or round belts. This design enhances grip and power transmission efficiency. Unlike other types of drive belts, V-Ribbed belts can drive multiple components simultaneously using a single belt, reducing the complexity of the drive system and improving maintenance ease ¹.

Role of the 3289739 V-Ribbed Drive Belt in Truck Operation

The 3289739 V-Ribbed Drive Belt plays a role in the operation of a truck by driving components such as the alternator, water pump, and air conditioning compressor. By transferring power from the engine to these components, the belt ensures that electrical power is generated, the engine remains cool, and the cabin is climate-controlled. This contributes to the truck’s overall performance, efficiency, and driver comfort ².

Key Features of the 3289739 V-Ribbed Drive Belt

The 3289739 V-Ribbed Drive Belt features a robust construction with high-quality materials that enhance its performance and durability. Its design includes specific elements such as reinforced edges to prevent fraying and a heat-resistant core to withstand the high temperatures within the engine compartment. These features contribute to the belt’s longevity and reliability under demanding conditions ³.

Benefits of Using the 3289739 V-Ribbed Drive Belt

Using the 3289739 V-Ribbed Drive Belt offers several benefits, including improved efficiency in power transmission, enhanced reliability due to its durable construction, and increased longevity compared to other drive belt options. These advantages contribute to reduced maintenance costs and downtime, making it a valuable component for commercial truck operations ⁴.

Installation and Maintenance Guidelines

Proper installation and maintenance of the 3289739 V-Ribbed Drive Belt are vital for ensuring optimal performance and longevity. Installation should follow manufacturer guidelines to ensure correct tension and alignment. Regular maintenance, including periodic inspections for wear and damage, and adherence to recommended replacement intervals, will help maintain the belt’s efficiency and prevent unexpected failures.

Troubleshooting Common Issues

Common issues with the 3289739 V-Ribbed Drive Belt may include slippage, wear, and damage. Slippage can often be addressed by adjusting the belt tension, while wear and damage may require replacement of the belt. Preventive measures, such as regular inspections and maintenance, can help identify potential issues before they lead to significant problems.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and quality, Cummins serves commercial truck, bus, construction, agricultural, and power generation markets. The company’s reputation for reliability and performance underscores the quality of its components, including the 3289739 V-Ribbed Drive Belt.

V-Ribbed Drive Belt (Part 3289739) Compatibility with Cummins Engines

The V-Ribbed Drive Belt, identified by part number 3289739, is a critical component in the operation of several Cummins engines. This belt is designed to efficiently transfer power from the engine’s crankshaft to various ancillary components, ensuring smooth and reliable operation.

ISC CM554 and ISL CM554

The V-Ribbed Drive Belt (3289739) is compatible with both the ISC CM554 and ISL CM554 engines. These engines are known for their robust performance and reliability in heavy-duty applications. The belt’s design ensures that it can handle the specific demands of these engines, providing consistent power transmission to essential components such as the alternator, water pump, and air conditioning compressor.

QSB4.5 CM850 (CM2850) and QSB6.7 CM850 (CM2850)

The V-Ribbed Drive Belt (3289739) is also suitable for the QSB4.5 CM850 (CM2850) and QSB6.7 CM850 (CM2850) engines. These engines are part of the Cummins Quantum Series, which is renowned for its versatility and efficiency. The belt’s precision engineering allows it to maintain optimal tension and alignment, ensuring efficient power transfer and reducing the risk of slippage or failure under varying operational conditions.

QSB7 CM2880 B117

Lastly, the V-Ribbed Drive Belt (3289739) is compatible with the QSB7 CM2880 B117 engine. This engine is designed for high-performance applications, and the belt’s robust construction and precise fit are essential for maintaining the engine’s efficiency and reliability. The belt’s ability to withstand high temperatures and stresses makes it an ideal choice for this engine, ensuring that power is transmitted effectively to all connected components.

Role of Part 3289739 V-Ribbed Drive Belt in Engine Systems

Part 3289739 V-Ribbed Drive Belt is integral to the efficient operation of several engine components. It serves as the primary means of transferring rotational force from the engine’s crankshaft to auxiliary components, ensuring they function in unison.

Drive Mechanism

The V-Ribbed Drive Belt is responsible for driving multiple engine accessories. It wraps around the crankshaft pulley and extends to various accessory pulleys. This setup allows the belt to transmit power efficiently, ensuring that each component receives the necessary rotational force to operate.

Water Pump Operation

A significant role of the V-Ribbed Drive Belt is to power the water pump. The water pump is essential for circulating coolant throughout the engine. The belt engages with the water pump pulley, causing the pump to rotate and move coolant, which helps maintain optimal engine temperature and prevents overheating.

Pulley System

The effectiveness of the V-Ribbed Drive Belt is highly dependent on the pulley system. Each accessory, such as the alternator, power steering pump, and air conditioning compressor, has its own pulley. The belt engages these pulleys, allowing each component to receive the necessary drive to function correctly. The tension and alignment of the belt on these pulleys are vital for consistent performance and longevity of the belt itself.

Water Pump Drive

Specifically, the water pump drive relies on the V-Ribbed Drive Belt to ensure continuous operation. The belt’s engagement with the water pump pulley ensures that the pump can circulate coolant effectively. This circulation is essential for dissipating heat generated by the engine, thus maintaining engine efficiency and reliability.

Conclusion

In summary, the Cummins 3289739 V-Ribbed Drive Belt plays a significant role in the coordinated operation of the engine’s drive mechanism, water pump, pulley system, and water pump drive, ensuring that all components work together seamlessly. Its robust construction, compatibility with various Cummins engines, and critical role in maintaining engine efficiency and reliability make it an essential component for commercial truck operations.