3936220
Belt Tensioner Bracket
Cummins®

The Belt Tensioner Bracket 3936220, manufactured by Cummins, is a component designed for use in commercial trucks. Cummins, a well-established name in the engine manufacturing industry, produces this bracket to ensure the efficient operation of truck engines. This part is integral to maintaining the proper function of the engine’s belt system, which is vital for the overall performance and reliability of the vehicle.

Basic Concepts of Belt Tensioner Brackets

A Belt Tensioner Bracket is a component that supports the tensioner mechanism in a truck’s engine system. Its function is to maintain the correct tension on the belts that drive various engine accessories, such as the alternator, water pump, and air conditioning compressor. Proper belt tension is necessary to ensure these accessories operate efficiently and to prevent belt slippage, which can lead to decreased performance and potential damage to the engine system ¹.

Purpose of the 3936220 Belt Tensioner Bracket

The 3936220 Belt Tensioner Bracket plays a role in the operation of a truck by securing the tensioner assembly in place. This ensures that the belts remain under the appropriate amount of tension, which contributes to engine performance and efficiency. By maintaining optimal belt tension, the bracket helps to ensure that engine accessories receive the necessary power to function correctly, which in turn supports the truck’s overall operational effectiveness ².

Key Features

The 3936220 Belt Tensioner Bracket is constructed with a focus on durability and functionality. It is made from high-quality materials that can withstand the rigors of commercial truck use. The design of the bracket includes features that allow for easy installation and adjustment of the tensioner, which is important for maintaining the correct belt tension. Additionally, the bracket may incorporate unique attributes that enhance its ability to support the tensioner mechanism under various operating conditions ³.

Benefits

The advantages provided by the 3936220 Belt Tensioner Bracket include improved engine performance due to consistent belt tension, which can lead to better accessory operation and overall engine efficiency. It also contributes to reduced wear on the belts, which can extend their service life and reduce the frequency of replacements. Furthermore, the enhanced durability of the bracket ensures that it can withstand the demands of commercial truck applications, providing long-term reliability.

Installation Process

Installing the 3936220 Belt Tensioner Bracket requires careful attention to ensure proper function. Mechanics and engineers should follow a step-by-step process that includes securing the bracket to the engine block, aligning it with the tensioner, and ensuring that it is fastened correctly. It is important to consult the vehicle’s service manual for specific instructions and torque specifications to ensure a proper installation. Best practices include verifying that the bracket is level and that the tensioner operates smoothly within its range of motion ⁴.

Troubleshooting and Maintenance

Common issues with the 3936220 Belt Tensioner Bracket may include wear or damage to the bracket itself, or problems with the tensioner mechanism. Diagnostic tips for identifying problems include checking for unusual noises from the belt system, inspecting the bracket and tensioner for signs of wear, and ensuring that the belts are not slipping or showing signs of excessive wear. Maintenance practices to ensure optimal performance and longevity include regular inspection of the bracket and tensioner, and replacing any worn or damaged components as necessary.

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 reputation for quality and innovation in the commercial truck industry. The company offers a wide range of products and services designed to meet the needs of customers in various markets, including heavy-duty trucking, construction, agriculture, and power generation. Cummins’ commitment to excellence is reflected in its product offerings, which are known for their reliability, performance, and durability.

Belt Tensioner Bracket 3936220 Compatibility with Cummins Engines

The Belt Tensioner Bracket 3936220, manufactured by Cummins, is a critical component in the engine’s belt drive system. This part ensures that the engine’s belts are held at the correct tension, which is essential for the proper functioning of various engine accessories such as the alternator, water pump, and air conditioning compressor.

Compatibility with Specific Cummins Engines

• 6C8.3 Engine Series: The Belt Tensioner Bracket 3936220 is specifically designed to fit within the 6C8.3 engine series. This engine series is known for its robust design and is commonly used in heavy-duty applications. The bracket’s precise fit ensures that the belt maintains optimal tension, contributing to the engine’s overall efficiency and longevity.

Grouping of Compatible Engines

The Belt Tensioner Bracket 3936220 is not limited to a single engine model but is compatible with a range of Cummins engines within the same series. This compatibility is due to the standardized design and engineering principles applied across similar engine models. By using this bracket, mechanics and technicians can ensure that the belt system operates smoothly, reducing the risk of belt slippage or failure.

Importance of Correct Fitment

Correct fitment of the Belt Tensioner Bracket 3936220 is crucial for maintaining the integrity of the engine’s belt drive system. An improperly fitted bracket can lead to increased wear on the belt and engine accessories, potentially resulting in costly repairs and downtime. Cummins has designed this bracket to meet stringent quality standards, ensuring that it provides reliable performance across various engine models.

Application in Engine Maintenance

During routine maintenance, it is essential to inspect the Belt Tensioner Bracket 3936220 for any signs of wear or damage. A damaged bracket can compromise the belt’s tension, leading to suboptimal engine performance. Regular checks and timely replacement of the bracket, when necessary, can help prevent unexpected engine failures and extend the life of the engine’s belt drive system.

Role of Part 3936220 Belt Tensioner Bracket in Engine Systems

The Belt Tensioner Bracket, identified by part number 3936220, is integral to the efficient operation of various engine systems. This component is strategically positioned to interact with the alternator drive system, ensuring optimal performance and longevity of the alternator.

Interaction with Alternator Drive

The Belt Tensioner Bracket works in conjunction with the alternator drive to maintain the correct tension on the drive belt. Proper tension is essential for the alternator to function effectively, as it ensures consistent power generation and stable electrical output. Without adequate tension, the belt may slip, leading to inefficient power transfer and potential damage to the alternator.

Ensuring Smooth Operation

By securing the belt tensioner in place, the Bracket allows for smooth and consistent rotation of the alternator. This is particularly important during engine start-up and under varying load conditions, where the demand on the alternator can fluctuate significantly. The Bracket’s role in maintaining belt tension helps to prevent excessive wear on both the belt and the alternator, contributing to the overall reliability of the engine system.

Integration with Other Components

Beyond its direct interaction with the alternator drive, the Belt Tensioner Bracket also plays a part in the broader context of engine component integration. It ensures that the belt remains properly aligned and taut, which is vital for the efficient operation of other belt-driven accessories such as the water pump and power steering pump. This interconnected functionality underscores the importance of the Bracket in maintaining the harmonious operation of the engine’s auxiliary systems.

Conclusion

The Belt Tensioner Bracket 3936220 is a critical component in the maintenance and operation of Cummins engines. Its role in maintaining proper belt tension ensures the efficient functioning of engine accessories and contributes to the overall reliability and performance of the engine system. Regular maintenance and proper installation are essential to maximize the benefits of this Cummins part.