3289078
V Ribbed Belt
Cummins®

Introduction

The Cummins 3289078 V Ribbed Belt is a component designed for use in heavy-duty truck operations. Its purpose is to transfer power from the engine to various auxiliary components, ensuring the efficient operation of the vehicle. This belt is significant in maintaining the functionality of critical systems within the truck, contributing to overall performance and reliability.

Basic Concepts of V Ribbed Belts

V Ribbed Belts are characterized by their trapezoidal cross-section, which allows them to fit snugly into corresponding pulleys. This design enhances grip and reduces slippage, ensuring efficient power transmission. In a truck’s engine system, these belts drive components such as the alternator, water pump, and air conditioning compressor, playing a role in the operation of these systems ¹.

Role of the 3289078 V Ribbed Belt in Truck Operation

The 3289078 V Ribbed Belt is integral to the operation of a truck by connecting the crankshaft to various engine-driven accessories. It ensures that these components receive the necessary power to function correctly. The belt’s interaction with other engine components is crucial for maintaining the truck’s electrical system, cooling system, and other essential functions.

Key Features of the 3289078 V Ribbed Belt

The 3289078 V Ribbed Belt is constructed from high-quality materials, designed to withstand the rigors of heavy-duty truck operation. Its design includes multiple ribs that increase the contact surface area with pulleys, enhancing power transmission efficiency. The belt is engineered to specific dimensions and specifications to ensure compatibility and optimal performance within the engine system.

Benefits of Using the 3289078 V Ribbed Belt

Utilizing the 3289078 V Ribbed Belt offers several advantages, including improved efficiency in power transmission, increased durability under demanding conditions, and enhanced overall performance of the truck’s engine system. Its design and material composition contribute to these benefits, making it a reliable choice for heavy-duty applications ².

Installation and Compatibility

Proper installation of the 3289078 V Ribbed Belt is crucial for its effective operation and longevity. It is designed to be compatible with a range of Cummins engines, ensuring that it can be used in various heavy-duty truck models. Following manufacturer guidelines during installation helps maintain the belt’s integrity and performance ³.

Maintenance and Troubleshooting

Regular maintenance of the 3289078 V Ribbed Belt is recommended to ensure its continued efficient operation. This includes periodic inspections for signs of wear, such as cracks or fraying, and addressing any issues promptly. Troubleshooting common problems, such as slippage or noise, can often be resolved through proper tensioning or replacement if necessary.

Performance Under Various Conditions

The 3289078 V Ribbed Belt is designed to perform reliably under a range of operating conditions, including extreme temperatures and heavy loads. Its material composition and design features contribute to its ability to maintain efficiency and durability in challenging environments, ensuring consistent performance.

Comparison With Other Belt Types

When compared to other types of belts, the 3289078 V Ribbed Belt offers advantages in terms of power transmission efficiency and durability. While other belt types may have their own specific benefits, the V Ribbed Belt’s design and construction make it particularly suited for heavy-duty truck applications, providing a balance of performance and reliability.

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 customers in approximately 190 countries and territories, offering a wide range of products for various industries, including automotive, construction, and power generation. The company’s commitment to excellence and customer satisfaction positions it as a leader in the automotive components industry.

V Ribbed Belt 3289078 Compatibility with Cummins Engines

The V Ribbed Belt part number 3289078, manufactured by Cummins, is designed to fit a variety of Cummins engines. This belt is crucial for the proper functioning of engine accessories such as the alternator, water pump, and air conditioning compressor. Below is a detailed overview of the engines that this belt is compatible with, grouped where applicable.

4B3.9 and 6B5.9 Engines

The V Ribbed Belt 3289078 is suitable for the 4B3.9 and 6B5.9 engines. These engines are known for their robust performance and reliability, often used in heavy-duty applications.

B4.5 and B5.9 G Engines

The belt also fits the B4.5 and B5.9 G engines. These engines are typically used in a variety of applications, including agricultural and industrial machinery, where durability and efficiency are paramount.

QSB3.9 30 CM550 and QSB4.5 CM2250 EC Engines

The V Ribbed Belt 3289078 is compatible with the QSB3.9 30 CM550 and QSB4.5 CM2250 EC engines. These engines are part of the Quanti-Shift Broad (QSB) series, known for their advanced technology and fuel efficiency.

QSB4.5 CM850 (CM2850) and QSB5.9 30 CM550 Engines

This belt is also suitable for the QSB4.5 CM850 (CM2850) and QSB5.9 30 CM550 engines. These engines are part of the same QSB series, offering a range of power options for various applications.

QSB6.7 CM2250 and QSB6.7 CM850 (CM2850) Engines

The V Ribbed Belt 3289078 fits the QSB6.7 CM2250 and QSB6.7 CM850 (CM2850) engines. These engines are part of the higher power range within the QSB series, providing substantial power for demanding tasks.

QSB7 CM2880 B117 Engine

Lastly, the belt is compatible with the QSB7 CM2880 B117 engine. This engine is part of the top-tier QSB series, offering exceptional power and efficiency for the most demanding applications.

Each of these engines relies on the V Ribbed Belt 3289078 to ensure that the engine accessories operate smoothly, contributing to the overall performance and longevity of the engine.

Role of Part 3289078 V Ribbed Belt in Engine Systems

The 3289078 V Ribbed Belt is a component in the efficient operation of various engine systems. Its primary function is to transmit power from the engine’s crankshaft to multiple auxiliary components, ensuring they operate in sync with the engine’s rotational speed.

Alternator Drive

In the alternator drive system, the 3289078 V Ribbed Belt plays a role. It connects the crankshaft to the alternator, allowing the alternator to spin and generate electricity. This electricity is vital for powering the vehicle’s electrical systems and recharging the battery. The consistent and reliable transfer of power ensures that the alternator operates efficiently, maintaining the vehicle’s electrical supply without interruption.

Water Pump Drive

The 3289078 V Ribbed Belt also drives the water pump, which is integral to the engine’s cooling system. By connecting the crankshaft to the water pump, the belt enables the pump to circulate coolant through the engine block and radiator. This circulation helps dissipate heat, preventing the engine from overheating. The belt’s durability and flexibility are key to withstanding the continuous motion and varying temperatures within the engine compartment, ensuring the water pump functions smoothly and effectively.

Conclusion

The Cummins 3289078 V Ribbed Belt is a critical component for the efficient operation of heavy-duty trucks. Its design, compatibility with various Cummins engines, and role in powering essential engine accessories make it a valuable part for maintaining vehicle performance and reliability. Regular maintenance and proper installation are essential to ensure the longevity and effectiveness of this Cummins part.