3926056
Belt Tensioner Bracket
Cummins®

Introduction

The Belt Tensioner Bracket 3926056 is a component designed by Cummins, a well-established manufacturer in the commercial truck industry. This bracket serves a specific role in the operation of commercial trucks, ensuring the efficient functioning of the engine system. Cummins, known for its robust and reliable products, manufactures this part to meet the demanding requirements of heavy-duty applications.

Basic Concepts of Belt Tensioner Brackets

A Belt Tensioner Bracket is an integral part of the engine system, responsible for maintaining the proper tension of the belts that drive various engine accessories. It operates by automatically adjusting the tension on the belt as the engine runs, which helps in reducing slippage and wear. This ensures that the belts can effectively transfer power to components such as the alternator, water pump, and air conditioning compressor ¹.

Purpose of the Belt Tensioner Bracket

The Belt Tensioner Bracket plays a role in the operation of a truck by securely mounting the tensioner assembly. It interacts with other engine components to ensure that the belts remain under the correct amount of tension throughout the engine’s operation. This contributes to overall engine performance by ensuring that accessories receive consistent power transmission, which is vital for the engine’s efficiency and longevity ².

Key Features

This Cummins part is constructed from high-quality materials, designed to withstand the rigors of heavy-duty use. Its design includes precise mounting points and alignment features to ensure accurate installation and operation. Unique attributes such as corrosion-resistant coatings and robust construction enhance its functionality and durability in various operating conditions.

Benefits

The Belt Tensioner Bracket offers several benefits, including improved engine efficiency through consistent belt tension, reduced wear on belts due to minimized slippage, and enhanced durability that contributes to the longevity of the engine system. These attributes make it a valuable component for maintaining the performance and reliability of commercial trucks.

Installation Process

Installing the Belt Tensioner Bracket requires careful attention to detail. The process involves securing the bracket to the engine block using the provided fasteners, ensuring that it is aligned correctly with the tensioner assembly. Tools such as torque wrenches may be required to achieve the proper tightening specifications. It is important to follow the manufacturer’s guidelines to ensure correct fitting and operation.

Troubleshooting Common Issues

Common problems associated with Belt Tensioner Brackets include noise from the tensioner, belt slippage, or misalignment of the bracket. Troubleshooting steps may involve inspecting the bracket and tensioner for signs of wear or damage, ensuring that the bracket is correctly aligned and securely fastened, and checking the condition of the belts for proper tension and signs of wear.

Maintenance Tips

Regular maintenance of the Belt Tensioner Bracket is important to ensure its longevity and optimal performance. This includes periodic inspections for signs of wear or damage, ensuring that the fasteners remain tight, and checking the condition of the belts. Addressing any issues promptly can help prevent more significant problems and ensure the continued efficient operation of the engine system.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a strong reputation in the commercial truck industry for producing reliable and high-performance products. Their product range includes engines, powertrain components, and aftermarket parts, all designed to meet the needs of various industries and applications ³.

Belt Tensioner Bracket 3926056 Compatibility with Cummins Engines

The Belt Tensioner Bracket 3926056, manufactured by Cummins, is designed to fit a variety of their engine models. This part is integral in maintaining the proper tension of the engine’s belts, ensuring efficient operation and longevity of the engine components.

ISB Series

• ISB CM550
• ISB/ISD6.7 CM2150 SN
• ISB5.9G CM2180
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118
• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

The ISB series engines, including the ISB CM550, ISB/ISD6.7 CM2150 SN, ISB5.9G CM2180, ISB6.7 CM2350 B101, ISB6.7 G CM2180 B118, ISBE CM2150, ISBE CM800, and ISBE4 CM850, all utilize the Belt Tensioner Bracket 3926056. This bracket is engineered to provide the necessary support and alignment for the belt tensioning system, ensuring that the belts operate within the optimal tension range.

QSB Series

• QSB3.9 30 CM550
• QSB4.5 CM2250 EC
• QSB4.5 CM850(CM2850)
• QSB5.9 30 CM550
• QSB5.9 44 CM550
• QSB6.7 CM2250
• QSB6.7 CM850(CM2850)
• QSB7 CM2880 B117

The QSB series engines, such as the QSB3.9 30 CM550, QSB4.5 CM2250 EC, QSB4.5 CM850(CM2850), QSB5.9 30 CM550, QSB5.9 44 CM550, QSB6.7 CM2250, QSB6.7 CM850(CM2850), and QSB7 CM2880 B117, are also compatible with the Belt Tensioner Bracket 3926056. This bracket is crucial for maintaining the correct tension of the belts in these engines, which is essential for the proper functioning of the engine’s ancillary systems.

B Series

• B4.5
• B5.9 G
• B6.7 CM2350 B135B

The B series engines, including the B4.5, B5.9 G, and B6.7 CM2350 B135B, are also designed to work with the Belt Tensioner Bracket 3926056. This bracket ensures that the belts in these engines are held at the correct tension, which is vital for the efficient operation of the engine’s components.

This compatibility ensures that the Belt Tensioner Bracket 3926056 can be used across a wide range of Cummins engines, providing a reliable and standardized solution for maintaining belt tension.

Role of Part 3926056 Belt Tensioner Bracket in Engine Systems

The Belt Tensioner Bracket, identified by part number 3926056, is an integral component in maintaining the proper function and efficiency of various engine-driven accessories. This bracket is designed to secure the belt tensioner, which in turn ensures that the serpentine belt remains taut across multiple pulleys.

In systems involving the alternator drive, the Belt Tensioner Bracket plays a significant role by keeping the belt properly aligned and tensioned. This ensures consistent power output from the alternator, which is essential for charging the battery and powering electrical components.

When integrated with a campaign kit, the Belt Tensioner Bracket aids in the systematic replacement or upgrade of belt-driven components. This ensures that all new or revised parts operate within the specified parameters, enhancing overall engine performance and reliability.

For the fan drive system, the bracket helps maintain optimal belt tension, which is vital for efficient cooling. Proper tension ensures that the fan operates smoothly, preventing overheating and potential engine damage.

In water pump drive systems, the Belt Tensioner Bracket is equally important. It ensures that the belt driving the water pump maintains the correct tension, which is necessary for efficient coolant circulation. This helps in maintaining the engine’s operating temperature within safe limits.

Additionally, the bracket works in conjunction with the pulley and water pump drive to ensure that all components remain synchronized. This synchronization is essential for the smooth operation of the engine’s ancillary systems, contributing to the longevity and efficiency of the engine as a whole.

Conclusion

The Belt Tensioner Bracket 3926056 by Cummins is a critical component in the maintenance and efficiency of engine systems in commercial trucks. Its role in ensuring proper belt tension is vital for the consistent operation of engine accessories, contributing to the overall performance and longevity of the engine. Regular maintenance and proper installation are essential to maximize the benefits of this part.