4982925
V Ribbed Belt
Cummins®

Introduction

The Cummins 4982925 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 ancillary systems. Understanding its function and importance can help in maintaining the efficiency and reliability of truck engines.

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, making them efficient for transmitting power in automotive applications ¹. In a truck’s engine, V-Ribbed Belts play a role in driving components such as the alternator, water pump, and air conditioning compressor, ensuring these systems operate correctly.

Purpose of the 4982925 V-Ribbed Belt

This Cummins part is specifically engineered to drive multiple engine components in commercial trucks. It connects the crankshaft to various pulleys, enabling the operation of the alternator for electrical power, the water pump for cooling, and other accessories. This belt ensures that these components receive the necessary power to function, contributing to the overall performance and reliability of the truck.

Key Features

The 4982925 V-Ribbed Belt features a robust design that includes high-quality materials to enhance its performance and durability. It is constructed with a reinforced core and durable outer layers, which provide resistance to wear and tear. The belt’s design also includes specific rib configurations to optimize power transmission and reduce the risk of slippage.

Benefits

The advantages of using the 4982925 V-Ribbed Belt include improved efficiency in power transmission, which can lead to better overall engine performance ². Its design also contributes to reduced maintenance requirements, as it is built to withstand the demanding conditions of commercial truck operation. Additionally, the belt’s reliability helps in minimizing downtime and ensuring consistent operation of the truck’s ancillary systems.

Installation Process

Installing the 4982925 V-Ribbed Belt requires careful attention to ensure optimal performance. The process involves routing the belt around the designated pulleys, ensuring it sits correctly in the grooves. Tools such as belt tensioners may be required to achieve the proper tension, which is critical for efficient operation and longevity of the belt. Following manufacturer guidelines during installation can help prevent issues and ensure the belt functions as intended.

Troubleshooting Common Issues

Common problems with V-Ribbed Belts include slippage, wear, and noise. Slippage can occur if the belt is not properly tensioned or if it has become glazed from use. Wear may be indicated by cracks or fraying on the belt’s surface. Noise, such as squealing, can be a sign of misalignment or improper tension. Addressing these issues promptly by inspecting the belt, adjusting tension, or replacing the belt if necessary, can help maintain the efficiency and reliability of the truck’s engine systems.

Maintenance Tips

Regular maintenance practices can prolong the life of the 4982925 V-Ribbed Belt. This includes periodic inspections for signs of wear or damage, checking the tension to ensure it is within the manufacturer’s specifications, and replacing the belt according to the recommended intervals or when signs of significant wear are observed. Adhering to these maintenance tips can help prevent unexpected failures and ensure the belt continues to perform effectively.

Cummins Overview

Cummins Inc. is a well-established company in the commercial truck industry, known for its wide range of diesel engines and related technologies. With a history of innovation and a commitment to quality, Cummins has built a reputation for producing reliable and efficient engine components. The company’s product range includes engines, filtration systems, and aftermarket parts, all designed to meet the demanding requirements of commercial transportation.

V-Ribbed Belt 4982925 Compatibility with Cummins Engines

The V-Ribbed Belt 4982925, manufactured by Cummins, is designed to fit a variety of Cummins engines, ensuring efficient power transmission and reliable operation. This belt is engineered to meet the specific requirements of the engines it supports, providing durability and performance in demanding conditions.

Compatible Engines

• B6.7 CM2350
• B135B, ISB/ISD6.7 CM2150 SN, ISBE CM2150
• ISBE4 CM850
• ISL9.5 CM2880 L138
• L9 CM2670 L128B
• QSB4.5 CM2250 EC
• QSB4.5 CM850 (CM2850)
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

Grouping of Compatible Engines

The V-Ribbed Belt 4982925 is compatible with a range of Cummins engines, grouped by their model and specifications:

• B6.7 CM2350
• B135B, ISB/ISD6.7 CM2150 SN, ISBE CM2150, ISBE4 CM850
• ISL9.5 CM2880 L138, L9 CM2670 L128B
• QSB4.5 CM2250 EC, QSB4.5 CM850 (CM2850), QSB6.7 CM850 (CM2850), QSB7 CM2880 B117

This belt is engineered to ensure a precise fit and optimal performance across these engine models, facilitating smooth operation and reducing the risk of mechanical failures.

Role of Part 4982925 V-Ribbed Belt in Engine Systems

The part 4982925 V-Ribbed Belt is an integral component in the efficient operation of various engine systems. It facilitates the transfer of rotational force from the engine’s crankshaft to multiple auxiliary components, ensuring their synchronized operation.

Drive System Integration

In the drive system, the V-Ribbed Belt connects the crankshaft to the pulleys of different engine accessories. This connection allows for the transmission of power needed to operate these components. The belt’s ribbed design enhances grip and reduces slippage, ensuring consistent power delivery.

Water Pump Operation

A significant application of the V-Ribbed 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 Belt drives the water pump pulley, which in turn rotates the pump impeller. This rotation creates a flow of coolant that absorbs heat from the engine and transfers it to the radiator for dissipation ³.

Water Pump Drive Mechanism

The water pump drive mechanism relies on the V-Ribbed Belt to transfer motion from the crankshaft to the water pump. This transfer is vital for the continuous circulation of coolant. The belt’s durability and flexibility ensure that the water pump operates smoothly under varying engine speeds and loads, contributing to the engine’s overall thermal management.

Conclusion

The Cummins 4982925 V-Ribbed Belt is a critical component in the efficient operation of commercial truck engines. Its robust design, compatibility with various Cummins engines, and role in driving essential engine accessories make it a reliable choice for maintaining engine performance and reliability. Regular maintenance and proper installation are key to ensuring the longevity and effectiveness of this part.