3968957
Alternator Bracket
Cummins®

AVAILABLE

Cummins®

1 is currently available

Ships within 2-4 business days

$109.95 $130.84

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The 3968957 Alternator Bracket, manufactured by Cummins, is a critical component in the electrical system of commercial trucks. This bracket ensures the alternator is securely mounted and operates efficiently, contributing to the overall performance and reliability of the vehicle’s electrical system.

Basic Concepts of Alternator Brackets

An alternator bracket serves as a mounting point for the alternator within a vehicle’s electrical system. It interfaces with both the alternator and the engine, providing a stable platform for the alternator to generate electricity. This electricity is used to charge the battery and power the vehicle’s electrical systems while the engine is running 1.

Purpose of the 3968957 Alternator Bracket

This Cummins part plays a role in securing the alternator in place within a truck’s engine compartment. By providing a stable mounting point, it facilitates the alternator’s operation, ensuring it can spin freely and generate electricity efficiently. This bracket is integral to maintaining the alternator’s alignment and reducing vibrations that could affect its performance.

Key Features

The 3968957 is designed with specific characteristics to enhance its performance and durability. It is constructed from materials that offer resistance to corrosion and wear, ensuring longevity in demanding commercial truck environments. The design includes precise mounting points and may feature additional components to absorb vibrations, contributing to the alternator’s stable operation.

Benefits

The advantages provided by this part include improved stability of the alternator, which leads to enhanced reliability of the electrical system. By securely mounting the alternator, it helps maintain consistent electrical output, which is vital for the operation of the truck’s electrical components. Additionally, the bracket’s design can contribute to overall truck performance by ensuring the alternator operates under optimal conditions.

Installation Process

Installing the 3968957 involves several steps to ensure it is properly secured and aligned. The process typically requires basic hand tools and may involve removing the old bracket, aligning the new bracket with the engine and alternator, and securing it with the appropriate fasteners. It is important to follow the manufacturer’s instructions to ensure a correct installation.

Troubleshooting Common Issues

Common problems associated with alternator brackets include loose connections or wear and tear over time. Troubleshooting steps may involve inspecting the bracket for signs of damage, ensuring all fasteners are tight, and checking the alignment of the alternator. Addressing these issues promptly can help maintain the efficiency of the electrical system.

Maintenance Tips

Regular maintenance of the 3968957 is key to ensuring its longevity and optimal performance. This includes periodic inspections for signs of wear or damage, cleaning the bracket to remove any debris or corrosion, and tightening any loose fasteners. Adhering to recommended inspection intervals can help prevent issues before they affect the alternator’s operation.

Cummins: A Brief 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. The company’s extensive product range and commitment to innovation underscore the quality and dependability of components like the 3968957 Alternator Bracket 2.

Cummins Alternator Bracket 3968957 Compatibility

The Cummins Alternator Bracket 3968957 is specifically designed to fit seamlessly with a range of Cummins engines, ensuring optimal performance and reliability. This bracket is engineered to provide a secure mounting point for the alternator, which is crucial for maintaining the electrical system’s functionality.

QSB5.9 CM850

The QSB5.9 CM850 engine is one of the models that benefit from the precise fit of the 3968957 Alternator Bracket. This engine is known for its robust performance and durability, making it a popular choice in various applications. The bracket’s design ensures that it aligns perfectly with the engine’s specifications, facilitating easy installation and reducing the risk of misalignment.

Group Compatibility

The Cummins Alternator Bracket 3968957 is also compatible with other engines within the same family as the QSB5.9 CM850. This compatibility extends to engines that share similar design and mounting features, ensuring that the bracket can be used across multiple models without modification. This versatility makes it a valuable component for technicians and fleet managers who need to maintain a wide range of Cummins engines.

By ensuring a precise fit and secure mounting, the 3968957 Alternator Bracket helps maintain the integrity of the electrical system, contributing to the overall reliability and performance of the engine.

Understanding the Integration of Part 3968957 Alternator Bracket with Engine Systems

The alternator bracket, specifically part 3968957, is a key component in the assembly and functionality of engine systems. Its primary role is to securely mount the alternator to the engine, ensuring stable and efficient operation.

Mounting Mechanism

The alternator bracket serves as the foundational mounting point for the alternator. It is designed to withstand the vibrations and stresses generated by the engine, providing a stable platform for the alternator. This stability is vital for the alternator’s performance, as any movement can affect its ability to generate a consistent electrical output.

Interaction with the Alternator

Once the alternator is mounted on the bracket, it is connected to the engine’s drive belt system. The bracket ensures that the alternator is positioned correctly to engage with the belt, which drives the alternator pulley. This engagement is necessary for the alternator to spin and generate electricity. The bracket’s design allows for precise alignment, minimizing wear on the belt and pulley system.

Electrical and Mechanical Integration

Beyond physical mounting, the alternator bracket also plays a role in the electrical and mechanical integration within the engine system. It often includes provisions for electrical connections, such as wiring harnesses, that link the alternator to the vehicle’s electrical system. This ensures that the generated electricity is efficiently distributed to power the vehicle’s electrical components and recharge the battery.

Conclusion

In summary, the 3968957 Alternator Bracket is a critical component in the engine system, facilitating the secure mounting and optimal functioning of the alternator. Its design and placement are engineered to ensure the alternator operates efficiently within the dynamic environment of an engine.


  1. Schneider, Wolf-Henning. Pistons and Engine Testing. Springer Nature, 2016.

  2. Eret, Angelina. Dynamic and Fatigue Assessment of Heavy-Duty Engine Valves. Springer Nature, 2024.

SPECIFICATIONS

Package Dimensions
5.5 x 1.0 x 0.25 in
Weight
0.58 lb
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.