3289686
V Ribbed Belt
Cummins®

The Cummins 3289686 V Ribbed Belt is a component designed for use in commercial trucks. It serves a significant role in the operation of these vehicles by facilitating the transfer of power from the engine to various accessories. Understanding its purpose and functionality is key to maintaining the efficiency and reliability of truck operations.

Basic Concepts of V Ribbed Belts

V Ribbed Belts are a type of drive belt characterized by their trapezoidal cross-section. This design allows for a larger contact area with the pulleys, enhancing grip and efficiency. In automotive systems, these belts are commonly used to drive multiple engine accessories such as alternators, water pumps, and air conditioning compressors. Their design enables them to handle higher loads and operate at higher speeds compared to flat belts ¹.

Purpose of the Cummins 3289686 V Ribbed Belt

This Cummins part plays a role in the operation of a truck by driving various engine accessories. It ensures that components like the alternator, water pump, and power steering pump receive the necessary power to function. This belt’s efficient power transmission is vital for the overall performance and reliability of the truck’s engine system.

Key Features

The Cummins 3289686 V Ribbed Belt is designed with several features that enhance its performance and durability. It is constructed from high-quality materials that offer resistance to wear, heat, and chemicals. The belt’s design includes multiple ribs that increase the contact area with the pulleys, improving grip and reducing the likelihood of slippage. Additionally, it is engineered to withstand the demanding conditions found in commercial truck applications ².

Benefits

Using the Cummins 3289686 V Ribbed Belt offers several benefits. Its design and materials contribute to improved efficiency in power transmission, reducing the load on the engine. The belt’s durability ensures longer service intervals, contributing to lower maintenance costs. Furthermore, its reliable performance helps in maintaining the overall efficiency and reliability of the truck’s engine system.

Installation

Installing the Cummins 3289686 V Ribbed Belt requires following specific guidelines to ensure proper fit and function. It is important to use the correct tools and procedures to avoid damage to the belt or the pulleys. Proper tensioning is crucial to ensure efficient power transmission and to prevent premature wear. Detailed instructions should be followed to achieve the best results ³.

Maintenance

To ensure optimal performance and longevity of the Cummins 3289686 V Ribbed Belt, regular maintenance is recommended. This includes periodic inspections for signs of wear, cracking, or misalignment. Tension adjustment may be necessary to maintain efficient operation. Replacement intervals should be observed to prevent belt failure and ensure the continued reliable operation of the truck’s engine accessories.

Troubleshooting

Common issues with the Cummins 3289686 V Ribbed Belt may include slippage, cracking, or misalignment. These problems can often be traced back to incorrect installation, improper tensioning, or normal wear and tear. Troubleshooting steps may involve inspecting the belt and pulleys for damage, adjusting the tension, or replacing the belt if necessary. Addressing these issues promptly can help maintain the efficiency and reliability of the truck’s engine system.

About Cummins

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 offers a wide range of products for various applications, including commercial trucks. The company’s reputation in the automotive industry is built on its commitment to quality, performance, and customer satisfaction.

V Ribbed Belt 3289686 Compatibility with Cummins Engines

The V Ribbed Belt part number 3289686, manufactured by Cummins, is designed to fit a variety of Cummins engines. This belt is integral to the operation of these engines, ensuring the proper functioning of ancillary components such as the alternator, water pump, and air conditioning compressor.

ISC CM554 and ISL CM554

The ISC CM554 and ISL CM554 engines both benefit from the V Ribbed Belt 3289686. These engines are known for their robust performance and are commonly used in heavy-duty applications. The belt’s design ensures efficient power transfer and minimizes wear, contributing to the longevity and reliability of these engines.

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

The QSB4.5 CM850 (CM2850) and QSB6.7 CM850 (CM2850) engines also utilize the V Ribbed Belt 3289686. These engines are widely used in agricultural and industrial applications, where durability and efficiency are paramount. The belt’s precise fit and high-quality construction help maintain optimal performance under varying operational conditions.

QSC8.3 CM554 and QSL9 CM554

The QSC8.3 CM554 and QSL9 CM554 engines are another set of Cummins engines that are compatible with the V Ribbed Belt 3289686. These engines are often found in heavy-duty construction and mining equipment, where they are subjected to rigorous demands. The belt’s ability to withstand these conditions ensures that the engines operate smoothly and efficiently.

By ensuring a proper fit and maintaining the integrity of the belt, the V Ribbed Belt 3289686 plays a crucial role in the overall performance and reliability of these Cummins engines.

Role of Part 3289686 V Ribbed Belt in Engine Systems

The V Ribbed Belt, identified by part number 3289686, is an essential component in the efficient operation of various engine systems. It serves as the primary means of transferring rotational force from the crankshaft to multiple auxiliary components, ensuring their synchronized operation.

Integration with Alternator Drive

In the alternator drive system, the V Ribbed Belt connects the crankshaft to the alternator. This connection allows the crankshaft’s rotational energy to be transferred to the alternator, enabling it to generate electrical power. The consistent and reliable transfer of this energy is vital for maintaining the vehicle’s electrical systems, including lighting, ignition, and various electronic components.

Function in Water Pump Drive

The V Ribbed Belt also plays a significant role in the water pump drive system. By linking the crankshaft to the water pump, it ensures that coolant is circulated throughout the engine. This circulation is essential for dissipating heat generated during combustion, thereby maintaining optimal engine temperature and preventing overheating.

Interaction with Water Pump Drive Pulley

The water pump drive pulley is another component where the V Ribbed Belt’s role is prominent. The belt wraps around this pulley, facilitating the transfer of motion from the crankshaft to the water pump. The pulley’s design, including its grooves and diameter, is tailored to the belt’s specifications to ensure a secure fit and efficient power transmission. This interaction is fundamental for the effective operation of the cooling system, directly influencing the engine’s overall performance and longevity.

Conclusion

In summary, the V Ribbed Belt (part 3289686) is integral to the operation of the alternator drive, water pump drive, and water pump drive pulley. Its role in these systems underscores the importance of proper installation and maintenance to ensure the engine’s reliable and efficient performance.