3920711
Belt Tensioner Bracket
Cummins®

The Cummins 3920711 Belt Tensioner Bracket is a component designed to support the proper functioning of heavy-duty trucks. Its role is to maintain the correct tension on the belts that drive various engine accessories, ensuring efficient operation and longevity of the truck’s engine system.

Basic Concepts of Belt Tensioner Brackets

A Belt Tensioner Bracket is a part of the engine system that holds the belt tensioner in place. It functions by providing a stable mounting point for the tensioner, which in turn keeps the belts at the optimal tension. This is vital for the efficient transfer of power from the engine to accessories such as the alternator, water pump, and air conditioning compressor ¹. Proper belt tension is crucial for the reliable operation of these components and the overall performance of the truck.

Purpose of the 3920711 Belt Tensioner Bracket

The 3920711 Belt Tensioner Bracket plays a role in the operation of a truck by securing the belt tensioner, which maintains the necessary tension on the drive belts. This ensures that the belts do not slip or become too tight, which could lead to premature wear or failure. By keeping the belts at the correct tension, the bracket contributes to the efficient transmission of power and the smooth operation of engine accessories ².

Key Features

The 3920711 Belt Tensioner Bracket is characterized by its robust design and the use of high-quality materials. It is engineered to withstand the rigors of heavy-duty truck operation, providing a durable mounting solution for the belt tensioner. The bracket’s design allows for easy installation and adjustment, ensuring that the belt tension can be fine-tuned for optimal performance.

Benefits

The advantages of using the 3920711 Belt Tensioner Bracket include improved engine efficiency, as proper belt tension reduces the load on the engine and enhances the performance of driven accessories. It also contributes to reduced wear on belts, extending their service life and lowering maintenance costs. Additionally, the reliable operation of the tensioner bracket enhances the overall reliability of the truck’s accessory systems ³.

Installation Process

Installing the 3920711 Belt Tensioner Bracket involves several steps to ensure proper fitting. The process requires specific tools, such as a torque wrench, to secure the bracket to the engine block. It is important to follow the manufacturer’s instructions carefully to ensure that the bracket is installed correctly and that the belt tension is adjusted to the specified levels.

Troubleshooting Common Issues

Common problems with Belt Tensioner Brackets can include noise, vibration, or belt slippage. These issues may arise from incorrect installation, wear on the bracket or tensioner, or improper belt tension. Diagnosing these problems involves inspecting the bracket and tensioner for signs of wear, ensuring that the belt is correctly tensioned, and verifying that the bracket is securely mounted.

Maintenance Tips

To ensure the longevity and optimal performance of the 3920711 Belt Tensioner Bracket, regular maintenance is recommended. This includes periodic inspections for signs of wear or damage, ensuring that the belt tension remains within the specified range, and addressing any issues promptly to prevent further damage to the bracket or the belts.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes diesel and natural gas engines, as well as related technologies. With a history of innovation and a commitment to quality, Cummins has established a reputation for producing reliable and efficient engine components. The company’s focus on customer satisfaction and technological advancement is reflected in its wide range of products, including the 3920711 Belt Tensioner Bracket.

Belt Tensioner Bracket 3920711 Compatibility with Cummins Engines

The Belt Tensioner Bracket part number 3920711, manufactured by Cummins, is designed to fit seamlessly with several engine models. This bracket plays a crucial role in maintaining the proper tension of the engine’s belts, ensuring efficient operation and longevity of the engine components.

6C8.3 Engine Group

The 3920711 Belt Tensioner Bracket is specifically engineered to integrate with the 6C8.3 engine series. This engine series is known for its robust performance and reliability, often utilized in heavy-duty applications. The bracket’s design ensures that it aligns perfectly with the engine’s layout, providing the necessary support and stability for the belt system.

In the 6C8.3 engine group, the Belt Tensioner Bracket 3920711 is a critical component that helps maintain the integrity of the belt system. Its precise fit and durable construction make it an essential part for the smooth and efficient operation of these engines.

Role of Part 3920711 Belt Tensioner Bracket in Engine Systems

The Belt Tensioner Bracket, identified by part number 3920711, is an integral component in maintaining the proper operation of the alternator drive system within an engine. This bracket is designed to secure the belt tensioner, which in turn ensures that the drive belt is kept at the correct tension.

When the engine is running, the drive belt transfers power from the crankshaft to various engine accessories, including the alternator. The alternator is responsible for generating electricity to power the vehicle’s electrical systems and recharge the battery.

The Belt Tensioner Bracket plays a significant role in this process by holding the tensioner in place. The tensioner applies the necessary force to the belt, preventing it from slipping or becoming too loose, which could lead to inefficient power transfer and potential damage to the alternator or other driven components.

Conclusion

In summary, the proper installation and function of the Belt Tensioner Bracket are essential for the reliable operation of the alternator drive system, ensuring that the alternator receives consistent power to perform its functions effectively.