3673035
Belt Tensioner Bracket
Cummins®

Introduction

The Belt Tensioner Bracket, specifically Part #3673035 by Cummins, is a component that plays a significant role in the maintenance and operation of commercial trucks. Cummins Inc., a well-established manufacturer in the commercial truck industry, produces this part. Understanding its function and importance can contribute to better truck management and performance.

Basic Concepts of Belt Tensioner Brackets

A Belt Tensioner Bracket is a mechanical device that helps maintain the correct tension on the belts within an engine system. It operates by automatically adjusting the tension on the belt as the engine runs, ensuring that the belt remains properly aligned and under the right amount of tension. This is crucial for the efficient transfer of power from the engine to various components such as the alternator, water pump, and air conditioning compressor ¹.

Purpose of the 3673035 Belt Tensioner Bracket

This Cummins part is designed to support the operation of a truck’s engine by ensuring that the belts driving various engine accessories are kept at the optimal tension. This contributes to the engine’s efficiency and performance by reducing slippage and wear on the belts, which in turn helps in maintaining the reliability and longevity of the engine components ².

Key Features

The 3673035 Belt Tensioner Bracket is constructed from durable materials that can withstand the harsh conditions of commercial truck operations. Its design includes features such as a robust mounting bracket, precision-machined surfaces for smooth operation, and a tensioner mechanism that provides consistent belt tension. These attributes enhance the functionality and reliability of the bracket in demanding environments.

Benefits

The advantages of using the 3673035 Belt Tensioner Bracket include improved belt longevity due to reduced slippage and wear. This leads to less frequent replacements and lower maintenance costs. Additionally, the bracket contributes to enhanced overall engine performance by ensuring that engine accessories receive consistent power transmission, which can improve fuel efficiency and power output ³.

Installation and Compatibility

Proper installation of the 3673035 Belt Tensioner Bracket involves following manufacturer guidelines to ensure it is securely mounted and correctly aligned with the engine’s belt system. While specific tools and precautions may vary, it is important to refer to the installation manual provided by Cummins for detailed instructions. Compatibility information regarding truck models and engine types should also be consulted to ensure the bracket is suitable for the intended application.

Troubleshooting and Maintenance

Common issues with the 3673035 Belt Tensioner Bracket may include wear on the tensioner mechanism or misalignment of the bracket. Diagnostic tips involve checking for signs of wear or damage and ensuring the bracket is properly aligned. Regular maintenance practices, such as inspecting the tensioner for wear and ensuring the belts are in good condition, can help in maintaining the longevity and optimal performance of the bracket.

Performance Impact

The 3673035 Belt Tensioner Bracket influences the overall performance of the truck’s engine by ensuring that the belts driving engine accessories are kept at the optimal tension. This can lead to improvements in fuel efficiency and power output, as the engine accessories operate more efficiently when the belts are properly tensioned.

Safety Considerations

When handling and installing the 3673035 Belt Tensioner Bracket, it is important to follow safety protocols. This includes wearing appropriate personal protective equipment (PPE) such as gloves and safety glasses. Additionally, ensuring the engine is off and cool before beginning any work on the belt system is a critical safety measure.

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 reliability in the commercial truck industry. Their product range includes engines, powertrain components, and aftermarket parts, all designed to meet the demanding requirements of commercial vehicle operations.

Compatibility of Belt Tensioner Bracket 3673035 with Cummins Engines

The Belt Tensioner Bracket part number 3673035, manufactured by Cummins, is designed to fit a range of Cummins engines. This part is integral for maintaining the proper tension of the engine’s serpentine belt, ensuring optimal performance and longevity of the engine’s ancillary systems.

4B3.9 and 6B5.9 Engines

The 4B3.9 and 6B5.9 engines are part of Cummins’ B-series lineup, known for their robust design and reliability. The Belt Tensioner Bracket 3673035 is compatible with both these engines, providing a secure mounting point for the belt tensioner. This ensures that the serpentine belt maintains the correct tension, which is crucial for the efficient operation of components such as the alternator, water pump, and air conditioning compressor.

B5.9 CM2670 B166C and QSB5.9 CM2880 B139 Engines

The B5.9 CM2670 B166C and QSB5.9 CM2880 B139 engines are also part of Cummins’ extensive engine portfolio. These engines are designed for heavy-duty applications, and the Belt Tensioner Bracket 3673035 is engineered to fit these models as well. The bracket’s design allows for precise alignment and tensioning of the serpentine belt, which is essential for the smooth operation of the engine’s various subsystems.

By ensuring that the belt tensioner bracket is correctly installed, these engines can operate at peak efficiency, reducing the risk of belt slippage and associated mechanical failures. The compatibility of the 3673035 bracket across these engines underscores Cummins’ commitment to providing reliable and interchangeable parts across their engine lineup.

Role of Part 3673035 Belt Tensioner Bracket in Engine Systems

The Belt Tensioner Bracket, identified by part number 3673035, is an integral component in maintaining the proper functioning of the alternator drive and the belt tensioner within engine systems.

This bracket securely mounts the belt tensioner, which is responsible for applying the correct amount of tension to the drive belt. The drive belt, in turn, powers various engine accessories, with the alternator being one of the primary components. The alternator drive relies on consistent belt tension to ensure efficient operation and to prevent slippage, which could lead to inadequate charging of the battery and potential engine performance issues.

The Belt Tensioner Bracket also contributes to the stability and alignment of the belt tensioner. This alignment is vital for the even distribution of tension across the belt, which is essential for the smooth operation of the alternator. Without proper tension, the alternator may not spin at the correct speed, leading to inefficient power generation and possible damage to the belt or the alternator itself.

Furthermore, the bracket’s design allows for easy adjustment of the belt tension, facilitating maintenance and replacement procedures. This feature is particularly beneficial during routine engine servicing, where the drive belt may need to be removed or replaced.

Conclusion

In summary, the Belt Tensioner Bracket (part 3673035) plays a significant role in the engine system by ensuring the alternator drive and belt tensioner operate within the specified parameters, thereby contributing to the overall efficiency and reliability of the engine.