3643844
Alternator Bracket
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$359.95 $428.34

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 3643844 Alternator Bracket is a component manufactured by Cummins, a well-established name in the commercial truck parts industry. This bracket is integral to the electrical system of commercial trucks, ensuring the alternator is securely mounted and functions efficiently.

Basic Concepts of an Alternator Bracket

An alternator bracket serves as a mounting point for the alternator within a vehicle’s electrical system. It plays a role in securing the alternator to the engine, allowing it to spin and generate electricity. The bracket interfaces with both the alternator and the engine, facilitating the transfer of mechanical energy to electrical energy that powers the vehicle’s electrical systems and recharges the battery 1.

Purpose of the 3643844 Alternator Bracket

The 3643844 Alternator Bracket is designed to hold the alternator in place within a truck’s engine compartment. By securing the alternator, it ensures that the alternator operates within the correct parameters to produce a consistent electrical output. This, in turn, supports the reliable operation of the truck’s electrical systems and helps maintain battery charge levels 2.

Key Features

The 3643844 Alternator Bracket is engineered with specific design and material characteristics to enhance its performance and durability. It is constructed from high-strength materials to withstand the vibrations and stresses encountered in heavy-duty truck applications. The design may include features such as precise mounting points and robust construction to ensure a secure fit and long service life 3.

Benefits

The use of the 3643844 Alternator Bracket offers several advantages. It contributes to the stability of the alternator, which is crucial for consistent electrical output. Additionally, by ensuring the alternator is properly mounted, it enhances the reliability of the electrical system. This can lead to improved overall vehicle performance and reduced likelihood of electrical failures.

Installation Considerations

When installing the 3643844 Alternator Bracket, it is important to follow guidelines and best practices to ensure proper fitment and function. Preparatory steps may include cleaning the mounting area and inspecting the bracket for any damage. The necessary tools for installation typically include wrenches and possibly a torque wrench to secure the bracket to the specified torque settings. Common pitfalls to avoid during installation include over-tightening fasteners, which can damage the bracket or alternator, and ensuring all connections are secure to prevent vibrations from loosening the mount over time.

Troubleshooting and Maintenance

To maintain the 3643844 Alternator Bracket and ensure its longevity, regular inspection and maintenance are recommended. Signs of wear may include cracks or deformation in the bracket, which can affect its ability to hold the alternator securely. Routine checks should involve visual inspections for any signs of damage and ensuring all fasteners remain tight. Addressing issues promptly can prevent more significant problems down the line and contribute to the overall reliability of the truck’s electrical system.

Cummins: Manufacturer Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions solutions. With a strong reputation in the commercial truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s product range includes components and systems designed to enhance the performance, efficiency, and reliability of commercial vehicles.

Cummins Alternator Bracket 3643844 Compatibility

The Cummins Alternator Bracket part number 3643844 is designed to fit a range of Cummins engines, ensuring a secure and reliable mounting for the alternator. This bracket is compatible with several engine models, including:

  • K38 and K50 Series Engines

    • The bracket is engineered to fit seamlessly with the K38 and K50 series engines. These engines are known for their robust performance and are widely used in various applications.
  • QSK38 and QSK50 Series Engines

    • The QSK38 CM2150 MCRS, QSK38 CM850 MCRS, QSK50 CM2150 MCRS, and QSK50 CM2350 K108 engines are also compatible with the 3643844 alternator bracket. These engines are part of the QSK series, which is recognized for its high power output and efficiency.

The compatibility of the 3643844 alternator bracket with these engines ensures that it can be used across a variety of applications without the need for modifications. This bracket is crucial for maintaining the proper alignment and function of the alternator, which is essential for the electrical system of the engine.

Role of Part 3643844 Alternator Bracket in Engine Systems

The Part 3643844 Alternator Bracket is an essential component in the assembly and functionality of various engine systems. It provides a secure mounting point for the alternator, ensuring it is properly aligned and supported within the engine bay.

Integration with the Alternator

The alternator bracket is designed to hold the alternator in place, allowing it to be driven by the engine’s drive belt. This bracket ensures that the alternator remains stable and correctly positioned, which is necessary for efficient power generation and regulation. The precise alignment facilitated by the bracket helps maintain consistent belt tension, reducing wear and enhancing the alternator’s performance.

Connection to the Drive System

In conjunction with the drive system, the alternator bracket plays a significant role in transmitting rotational force from the engine to the alternator. This transfer of motion is vital for the alternator to generate electricity, which powers the vehicle’s electrical systems and recharges the battery. The bracket’s robust construction ensures that it can withstand the dynamic forces involved in this process, contributing to the overall reliability of the drive system.

Mounting and Stability

The mounting aspect of the alternator bracket is equally important. It secures the alternator to the engine or chassis, providing a stable foundation that prevents movement or vibration. This stability is essential for maintaining the integrity of electrical connections and ensuring that the alternator operates smoothly without undue stress on its components.

Interaction with the Alternator Guard

In systems where an alternator guard is used, the alternator bracket works in tandem to provide additional protection. The guard, often made of metal or durable plastic, shields the alternator from debris, moisture, and physical damage. The bracket ensures that the guard is correctly positioned and remains in place, enhancing the alternator’s longevity and performance in harsh environments.

Overall, the Part 3643844 Alternator Bracket is a key component that ensures the alternator is properly integrated into the engine system, contributing to the efficient and reliable operation of the vehicle’s electrical system.

Conclusion

The 3643844 Alternator Bracket by Cummins is a critical component for the reliable operation of commercial truck electrical systems. Its robust design, compatibility with various Cummins engines, and role in securing the alternator ensure consistent electrical output and enhanced vehicle performance. Regular maintenance and proper installation are key to maximizing the benefits of this Cummins part.


  1. Atkins, Richard D. An Introduction to Engine Testing and Development. SAE International, 2009.

  2. Duffy, Owen C and Wright, Gus. Fundamentals of Medium-Heavy Duty Commercial Vehicle Systems. Jones Bartlett Learning, 2016.

  3. Dixon, John. Modern Diesel Technology: Heating, Ventilation, Air Conditioning, Refrigeration, 2nd Edition. Cengage Learning, 2014.

SPECIFICATIONS

Package Dimensions
35.5 x 35.5 x 10.3 in
Weight
2.2 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.