3643287
Alternator Guard
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$2,199.95 $2,617.94

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

Introduction

The Cummins 3643287 Alternator Guard is a critical component designed to protect the alternator in commercial trucks. Its role is significant in maintaining the operational integrity of the truck’s electrical system. By safeguarding the alternator from external elements, it contributes to the overall reliability and performance of the vehicle 1.

Purpose of the Alternator Guard

The Alternator Guard serves to shield the alternator from potential damage caused by road debris, weather conditions, and other environmental factors. This protection ensures that the alternator operates efficiently, thereby maintaining a stable electrical supply to the truck’s systems. The guard also plays a role in prolonging the alternator’s lifespan by reducing wear and tear from external sources 2.

Key Features

The Cummins 3643287 Alternator Guard is constructed with durable materials that offer robust protection. Its design includes a sturdy frame that encases the alternator, providing a barrier against impacts and environmental elements. The guard is engineered to fit securely around the alternator, ensuring that it remains in place under various driving conditions. Additionally, the design allows for adequate ventilation, which helps in dissipating heat generated by the alternator 3.

Benefits of Using an Alternator Guard

Utilizing an Alternator Guard like the Cummins 3643287 offers several advantages. It enhances the durability of the alternator by protecting it from physical damage. This protection reduces the risk of alternator failure due to external factors. Furthermore, the guard contributes to the improved performance of the truck’s electrical system by ensuring that the alternator functions under optimal conditions. This can lead to more reliable operation of the vehicle’s electrical components.

Installation Process

Installing the Cummins 3643287 Alternator Guard involves several steps to ensure proper fitting. First, the alternator should be inspected for any existing damage or debris. The guard is then positioned around the alternator, ensuring that it aligns correctly with the mounting points. Fasteners are used to secure the guard in place, and it is important to verify that the guard does not obstruct any moving parts or interfere with other components. Tools required may include wrenches and screwdrivers, depending on the specific model of the truck.

Maintenance and Care

Regular maintenance of the Alternator Guard is important to ensure its continued effectiveness. This includes periodic cleaning to remove any accumulated dirt or debris. Inspections should be conducted to check for signs of damage or wear. If the guard shows signs of significant wear or damage, it should be replaced to maintain the protection of the alternator. Following the manufacturer’s guidelines for maintenance will help in preserving the guard’s integrity and performance.

Troubleshooting Common Issues

Common issues with the Alternator Guard may include improper fitting, which can lead to reduced effectiveness, or damage from impacts. To address fitting issues, it is important to re-evaluate the installation process, ensuring that the guard is correctly aligned and secured. In the case of damage, assessing the extent of the damage is crucial. Minor damage may be repairable, while significant damage may necessitate replacement of the guard to maintain the protection of the alternator.

Cummins Overview

Cummins Inc. is a well-established company in the commercial truck industry, known for its wide range of products including engines, filtration, and power generation equipment. With a history of innovation and quality, Cummins has built a reputation for reliability and performance. The company’s product range is designed to meet the demanding requirements of commercial trucking, providing solutions that enhance the efficiency and durability of trucks.

Cummins Alternator Guard 3643287 Compatibility

The Cummins Alternator Guard part number 3643287 is designed to fit seamlessly with a range of Cummins engines, ensuring optimal performance and protection for the alternator system. This guard is engineered to provide a secure fit and effective shielding for the alternator, which is crucial for maintaining the integrity of the engine’s electrical system.

QSK45 CM500 and QSK60 CM500

For the QSK45 CM500 and QSK60 CM500 engines, the alternator guard 3643287 is specifically tailored to fit the unique design and layout of these models. Its precision engineering ensures that it aligns perfectly with the alternator, providing robust protection against debris, moisture, and other potential contaminants. This guard is essential for maintaining the efficiency and longevity of the alternator, which is a critical component in the engine’s electrical system.

QSK60 CM850 MCRS

The QSK60 CM850 MCRS engine also benefits from the use of the Cummins Alternator Guard 3643287. This engine, known for its robust performance and reliability, requires a guard that can withstand the demanding conditions it operates under. The 3643287 alternator guard is designed to fit the QSK60 CM850 MCRS with precision, ensuring that the alternator remains protected and functioning optimally. Its compatibility with this engine model underscores Cummins’ commitment to providing high-quality, durable parts that enhance engine performance and reliability.

By ensuring a precise fit and effective protection, the Cummins Alternator Guard 3643287 is an indispensable component for maintaining the health and efficiency of these Cummins engines.

Understanding the Role of Part 3643287 Alternator Guard in Engine Systems

Part 3643287, the Alternator Guard, is an essential component designed to protect the alternator within various engine systems. This guard is strategically positioned to shield the alternator from potential damage caused by debris, vibrations, and other environmental factors that could impair its functionality.

Integration with Engine Components

  1. Guard and Alternator Relationship: The primary function of the Alternator Guard is to envelop the alternator, providing a physical barrier against external elements. This protection ensures that the alternator operates efficiently without interference from contaminants or mechanical stress.

  2. Packaged Engine Systems: In packaged engine systems, where multiple components are integrated into a compact unit, the Alternator Guard plays a significant role in maintaining the integrity of the alternator. It helps in preserving the overall performance and reliability of the engine package by ensuring that the alternator remains unaffected by the harsh conditions within the engine bay.

  3. Guard’s Role in Vibration Management: Engines are subject to constant vibrations, which can affect sensitive components like the alternator. The Alternator Guard helps in dampening these vibrations, thereby contributing to the stable operation of the alternator and extending its lifespan.

  4. Environmental Protection: In outdoor or industrial applications, engines are exposed to dust, dirt, and other particulates. The Alternator Guard acts as a first line of defense, preventing these particles from entering the alternator and causing internal damage.

  5. Thermal Regulation: The guard also assists in managing the thermal environment around the alternator. By providing a barrier, it helps in dissipating heat more effectively, which is vital for the alternator’s performance and longevity.

Conclusion

In summary, the Alternator Guard (Part 3643287) is a vital component in engine systems, offering comprehensive protection to the alternator and ensuring its optimal performance in various operational conditions. Regular maintenance and proper installation are key to maximizing the benefits of this part.


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

  2. Hilgers, Michael. Vocational Vehicles and Applications. Springer Nature, 2023.

  3. Peters, George, and Barbara J Peters. Automobile Vehicle Safety. CRC Press, 2002.

SPECIFICATIONS

Package Dimensions
53.6 x 30.7 x 40.0 in
Weight
6.29 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.