3643264
Alternator Guard
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$1,799.95 $2,141.94

Oversize Item

This is an oversize product. Additional shipping fees may apply.

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 Cummins 3643264 Alternator Guard is a component designed to enhance the durability and reliability of the alternator in commercial trucks. Its role is to provide physical and environmental protection to the alternator, ensuring consistent performance and longevity of the truck’s electrical system.

Basic Concepts of Alternator Guards

An alternator guard is a protective enclosure that surrounds the alternator. Its primary function is to shield the alternator from physical damage, such as impacts from road debris, and environmental factors like moisture and dust. By integrating into the truck’s electrical system, the alternator guard helps maintain the alternator’s efficiency and extends its operational life 1.

Purpose of the Cummins 3643264 Alternator Guard

The Cummins 3643264 Alternator Guard serves to protect the alternator from various external threats. It defends against physical damage that could arise from road conditions and environmental elements such as water, dirt, and corrosive substances. This protection is vital for maintaining the alternator’s performance and ensuring the reliability of the truck’s electrical system 2.

Key Features

The Cummins 3643264 Alternator Guard is constructed from durable materials that offer robust protection. Its design includes features such as a secure fit around the alternator, ventilation to allow for heat dissipation, and a sealed construction to prevent the ingress of contaminants. These attributes contribute to the guard’s effectiveness in protecting the alternator 3.

Benefits of Using the Cummins 3643264 Alternator Guard

Utilizing the Cummins 3643264 Alternator Guard provides several advantages. It enhances the durability of the alternator by shielding it from physical and environmental damage. This protection leads to improved reliability of the truck’s electrical system and can result in cost savings due to the prolonged life of the alternator and reduced need for repairs.

Installation Process

Installing the Cummins 3643264 Alternator Guard involves several steps to ensure proper protection. The process includes preparing the alternator, positioning the guard, and securing it in place. Tools required may include wrenches and screwdrivers. Following best practices during installation ensures that the guard effectively protects the alternator.

Troubleshooting Common Issues

Common issues associated with alternator guards and alternators can include fitment problems, damage to the guard, and alternator malfunctions. Troubleshooting steps may involve inspecting the guard for damage, ensuring proper installation, and checking the alternator’s connections and output. Addressing these issues promptly can help maintain the electrical system’s integrity.

Maintenance Tips

Regular maintenance of the Cummins 3643264 Alternator Guard is important for its longevity and effectiveness. Maintenance practices include periodic inspections for damage, cleaning the guard to remove dirt and debris, and ensuring that it remains securely fitted. These routines help to preserve the guard’s protective capabilities and the alternator’s performance.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a history of innovation and quality, Cummins serves various industries, including commercial trucking. The company is known for its comprehensive product range and strong reputation in the industry, providing reliable components that contribute to the efficiency and performance of commercial vehicles.

Cummins Alternator Guard 3643264 Compatibility with Engine Models

The Cummins Alternator Guard part number 3643264 is designed to fit a variety of engine models, ensuring a secure and efficient fit across different engine configurations. Here is a detailed overview of its compatibility with the specified engines:

K50 Series Engines

  • K50: The 3643264 Alternator Guard is engineered to fit seamlessly with the K50 engine, providing robust protection for the alternator and maintaining the integrity of the engine’s electrical system.

QSK38 Series Engines

  • QSK38 CM2150 MCRS: This model benefits from the 3643264 Alternator Guard, which is specifically designed to align with the engine’s layout, ensuring optimal performance and protection.
  • QSK38 CM850 MCRS: Similarly, the QSK38 CM850 MCRS engine is compatible with the 3643264 Alternator Guard, offering reliable shielding for the alternator.

QSK50 Series Engines

  • QSK50 CM2150 MCRS: The 3643264 Alternator Guard is also suitable for the QSK50 CM2150 MCRS engine, providing a precise fit that enhances the engine’s operational efficiency.
  • QSK50 CM2350 K108: This engine model is another compatible option for the 3643264 Alternator Guard, ensuring that the alternator is well-protected against potential damage.

Grouping by Engine Series

The compatibility of the 3643264 Alternator Guard can be grouped by engine series for a clearer understanding:

  • K50 Series:

    • K50
  • QSK38 Series:

    • QSK38 CM2150 MCRS
    • QSK38 CM850 MCRS
  • QSK50 Series:

    • QSK50 CM2150 MCRS
    • QSK50 CM2350 K108

This detailed compatibility ensures that users can confidently select the 3643264 Alternator Guard for their specific engine model, knowing it is designed to fit and function effectively.

Conclusion

The Cummins 3643264 Alternator Guard is a vital component that enhances the durability and efficiency of the alternator within engine systems. Its protective function ensures that the alternator operates under optimal conditions, contributing to the overall reliability and performance of the engine.


  1. Isermann, Rolf. Combustion Engine Diagnosis. Springer Vieweg, 2017.

  2. Singh, D. K. Dictionary of Mechanical Engineering. Springer Nature, 2024.

  3. Trzesniowski, Michael. The Complete Vehicle. Springer Nature, 2023.

SPECIFICATIONS

Package Dimensions
63.0 x 25.5 x 36.0 in
Weight
4.792 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.