3289637
V Ribbed Belt
Cummins®

Introduction

The Cummins 3289637 V-Ribbed Belt is a component designed for use in commercial trucks. It plays a role in the operation of these vehicles by facilitating the transfer of power from the engine to various accessories. Understanding its function and importance can help in 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, which allows them to fit into corresponding grooves on pulleys. This design enhances grip and reduces slippage, ensuring efficient power transmission ¹. In the drivetrain of a truck, V-Ribbed Belts connect the engine to components such as the alternator, water pump, and air conditioning compressor. They differ from flat belts and timing belts in their construction and application, offering advantages in terms of durability and performance under varying load conditions ².

Purpose of the 3289637 V-Ribbed Belt

The Cummins 3289637 V-Ribbed Belt is integral to the operation of a truck, driving various engine accessories that are vital for the vehicle’s performance. It ensures that components like the alternator, which generates electrical power, and the water pump, which aids in engine cooling, receive the necessary power to function correctly. This belt’s role in facilitating the operation of these accessories contributes to the overall efficiency and reliability of the truck.

Key Features

The Cummins 3289637 V-Ribbed Belt is constructed with high-quality materials that enhance its performance and durability. Its design includes multiple ribs that increase the contact surface area with the pulleys, improving grip and reducing the likelihood of slippage. Additionally, the belt is engineered to withstand the demanding conditions of commercial truck operations, providing reliable service over extended periods ³.

Benefits

Utilizing the Cummins 3289637 V-Ribbed Belt in truck operations offers several benefits. Its design and construction contribute to improved efficiency in power transmission, reducing the load on the engine. The belt’s durability ensures long-term reliability, minimizing the need for frequent replacements. Furthermore, its performance under various operating conditions helps maintain the overall efficiency and reliability of the truck.

Installation

Installing the Cummins 3289637 V-Ribbed Belt requires following specific guidelines to ensure proper fit and function. The process involves using appropriate tools and equipment to remove the old belt and install the new one, ensuring it is correctly aligned with the pulleys. Detailed step-by-step instructions should be followed to achieve a secure and efficient installation.

Maintenance

Regular maintenance of the Cummins 3289637 V-Ribbed Belt is crucial for ensuring optimal performance and longevity. This includes periodic inspections for signs of wear, such as cracks or fraying, and adhering to recommended replacement intervals. Proper maintenance helps prevent unexpected failures and ensures the belt continues to operate efficiently.

Troubleshooting

Common issues with the Cummins 3289637 V-Ribbed Belt may include slippage, noise, or visible wear. Troubleshooting these problems involves diagnosing the cause, whether it be improper installation, wear and tear, or other factors. Addressing these issues promptly can help maintain the belt’s performance and extend its service life.

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 serves commercial truck, bus, construction, agricultural, and industrial markets. The company’s reputation in the commercial truck industry is built on its commitment to providing reliable, efficient, and durable products.

V-Ribbed Belt Part 3289637 Compatibility with Cummins Engines

The V-Ribbed Belt part number 3289637, manufactured by Cummins, is designed to fit a variety of Cummins engines. This belt is crucial for the proper functioning of the engine’s ancillary systems, ensuring that components such as the alternator, water pump, and air conditioning compressor operate efficiently.

Engines Compatible with Part 3289637

• B Series Engines: B4.5 CM2350 B129B
• F Series Engines: F3.8 CM2350 F120B, F3.8 CM2620 F137B, F4.5 CM2620 F139B
• ISB/ISD Series Engines: ISB/ISD4.5 CM2150 B119, ISB4.5 CM2350 B104
• ISBE Series Engines: ISBE CM2150, ISBE CM800, ISBE4 CM850
• ISM Series Engines: ISM CM570, ISM CM570/870, ISM CM876
• QSB Series Engines: QSB4.5 CM850 (CM2850), QSB6.7 CM850 (CM2850), QSB7 CM2880 B117
• QSM Series Engines: QSM11 CM570

This belt is engineered to meet the specific requirements of these engines, ensuring durability and performance in various operating conditions.

Role of Part 3289637 V-Ribbed Belt in Engine Systems

The part 3289637 V-Ribbed Belt is integral to the efficient operation of several key engine components. This belt is designed to transfer rotational force from the engine’s crankshaft to various auxiliary components, ensuring they function in unison.

Fan Drive

The V-Ribbed Belt connects to the fan drive, which is responsible for rotating the engine cooling fan. As the engine operates, the belt drives the fan, allowing it to pull air through the radiator. This airflow helps dissipate heat from the coolant, maintaining optimal engine temperature.

Fan Drive Belt

In systems where a separate fan drive belt is utilized, the V-Ribbed Belt may still play a supporting role. It ensures that the fan drive mechanism receives consistent power, contributing to effective engine cooling.

Front Drive Belt

Often, the V-Ribbed Belt serves as the front drive belt, directly powering multiple engine accessories from a single belt. This configuration reduces the complexity of the drive system while enhancing reliability. The belt’s robust design allows it to handle the load of driving several components simultaneously.

Water Pump Drive

The V-Ribbed Belt is also responsible for driving the water pump. This pump circulates coolant throughout the engine, absorbing heat and transferring it to the radiator. The consistent rotation provided by the belt ensures that the coolant flow is uninterrupted, which is essential for preventing engine overheating.

Conclusion

In summary, the part 3289637 V-Ribbed Belt is a versatile component that facilitates the operation of the fan drive, fan drive belt, front drive belt, and water pump drive, contributing to the overall efficiency and reliability of the engine system.