3290073
V Ribbed Belt
Cummins®

The Cummins 3290073 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.

Basic Concepts of V-Ribbed Drive Belts

V-Ribbed Drive Belts are characterized by their trapezoidal cross-section, which allows them to engage with corresponding pulleys more effectively than flat belts. This design enhances power transmission efficiency and reduces slippage. Unlike flat belts, V-Ribbed Drive Belts can transmit higher power levels and operate under greater tension, making them suitable for heavy-duty applications ¹.

Role of the 3290073 V-Ribbed Drive Belt in Truck Operation

The 3290073 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. It supports systems that are vital for engine performance, cooling, and comfort features within the vehicle. The efficient transfer of power by this belt ensures that these components operate smoothly and reliably.

Key Features of the 3290073 V-Ribbed Drive Belt

The 3290073 V-Ribbed Drive Belt is engineered with features that make it suitable for heavy-duty applications. Its construction includes high-strength materials that provide durability under demanding conditions. The belt’s design elements, such as the number and angle of the ribs, are optimized for maximum power transmission and longevity.

Benefits of Using the 3290073 V-Ribbed Drive Belt

Using the 3290073 V-Ribbed Drive Belt offers several benefits. It contributes to improved efficiency in power transmission, which can lead to better overall performance of the truck. The belt’s durability ensures a longer service life, reducing the frequency of replacements. Additionally, its design helps in maintaining consistent performance across a range of operating conditions ².

Installation and Maintenance

Proper installation of the 3290073 V-Ribbed Drive Belt is important to ensure optimal performance. It should be routed according to the manufacturer’s specifications to avoid damage and ensure correct tension. Routine maintenance includes regular inspections for signs of wear or damage, proper tensioning, and replacement when necessary to prevent failure and maintain efficiency.

Troubleshooting Common Issues

Common issues with the 3290073 V-Ribbed Drive Belt may include slippage, cracking, or fraying. Troubleshooting steps involve checking the belt for proper tension, inspecting for damage, and ensuring that all pulleys and components are in good working order. Addressing these issues promptly can help maintain the belt’s performance and longevity.

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 a diverse product range, Cummins has established a reputation for quality and reliability in the commercial truck industry. The company’s commitment to excellence is reflected in its parts, including the 3290073 V-Ribbed Drive Belt.

V-Ribbed Drive Belt (Part 3290073) Compatibility with Cummins Engines

The V-Ribbed Drive Belt, identified by part number 3290073, is a crucial component in the engine’s accessory drive system. This belt is designed to efficiently transfer power from the engine’s crankshaft to various engine accessories, ensuring smooth and reliable operation. Here is a detailed overview of its compatibility with specific Cummins engines:

ISB CM550 and ISB CM850

The V-Ribbed Drive Belt (3290073) is compatible with both the ISB CM550 and ISB CM850 engines. These engines are known for their robust performance and reliability, often used in heavy-duty applications. The belt ensures that the alternator, water pump, and other accessories receive the necessary power to function correctly.

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

The V-Ribbed Drive Belt (3290073) is also suitable for the QSB4.5 CM850 (CM2850) and QSB6.7 CM850 (CM2850) engines. These engines are designed for versatility and efficiency, often found in a variety of industrial and agricultural applications. The belt’s design allows it to handle the specific demands of these engines, ensuring optimal performance and longevity.

QSB5.9 44 CM550

The V-Ribbed Drive Belt (3290073) fits the QSB5.9 44 CM550 engine, which is engineered for high-performance and durability. This engine is commonly used in demanding applications where reliability and power are critical. The belt’s precision engineering ensures that it can withstand the rigors of continuous operation, providing consistent power transfer to engine accessories.

QSB7 CM2880 B117

Lastly, the V-Ribbed Drive Belt (3290073) is compatible with the QSB7 CM2880 B117 engine. This engine is known for its exceptional power and efficiency, often utilized in heavy-duty and industrial settings. The belt’s robust construction and precise fitment ensure that it can handle the high-stress environment of this engine, maintaining reliable operation of all connected accessories.

Role of Part 3290073 V-Ribbed Drive Belt in Engine Systems

The V-Ribbed Drive Belt, identified by part number 3290073, is integral to the efficient operation of several key components within an engine system. Its primary function is to transfer rotational force from the crankshaft to various auxiliary components, ensuring they operate in sync with the engine’s rhythm.

Water Pump Drive

One of the primary applications of the V-Ribbed Drive Belt is in driving the water pump. The water pump is responsible for circulating coolant through the engine to maintain optimal operating temperatures. The V-Ribbed Drive Belt engages with the water pump drive pulley, transferring the crankshaft’s rotational energy to the water pump. This ensures a consistent flow of coolant, which is essential for dissipating heat generated by the engine’s combustion process. Without this belt, the water pump would not function, leading to potential engine overheating and damage.

Water Pump Drive Pulley

The water pump drive pulley is a critical interface between the V-Ribbed Drive Belt and the water pump. This pulley is designed to match the contour and grip of the V-Ribbed Drive Belt, allowing for efficient power transmission. As the crankshaft rotates, it drives the V-Ribbed Drive Belt, which in turn rotates the water pump drive pulley. This pulley is typically toothed or grooved to enhance the belt’s grip, reducing slippage and ensuring reliable operation. The consistent rotation of the pulley drives the water pump, facilitating the continuous circulation of coolant throughout the engine system.

Conclusion

In summary, the V-Ribbed Drive Belt (part 3290073) is a versatile and essential component that ensures the smooth operation of various Cummins engines. Its compatibility with the ISB CM550, ISB CM850, QSB4.5 CM850 (CM2850), QSB6.7 CM850 (CM2850), QSB5.9 44 CM550, and QSB7 CM2880 B117 engines highlights its importance in maintaining the performance and reliability of these engines across different applications. The belt’s role in driving critical components such as the water pump and alternator underscores its significance in the overall efficiency and longevity of the engine system ³.