3028520
Alternator Pulley
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$47.95 $57.06

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 3028520 Alternator Pulley is a component designed for use in commercial trucks. Its purpose is to facilitate the operation of the alternator, which is responsible for generating electrical power to support the truck’s electrical systems. The significance of this pulley lies in its role in ensuring the alternator functions correctly, thereby contributing to the overall efficiency and reliability of the vehicle.

Basic Concepts of Alternator Pulleys

An alternator pulley is a mechanical component that connects the alternator to the engine’s crankshaft via a serpentine belt. This pulley allows the alternator to rotate at a speed sufficient to generate electricity. The alternator pulley works in conjunction with the serpentine belt to transfer rotational force from the engine to the alternator. This interaction is vital for the alternator to produce the electrical energy needed to power the truck’s electrical systems and recharge the battery 1.

Purpose and Role of the 3028520 Alternator Pulley

The Cummins 3028520 Alternator Pulley plays a specific role in the operation of a truck by driving the alternator. As the engine runs, the pulley rotates, transferring motion to the alternator. This rotation enables the alternator to generate electrical power, which is used to operate the truck’s electrical components and recharge the battery. The efficient transfer of motion from the engine to the alternator is crucial for maintaining the truck’s electrical system 2.

Key Features

The Cummins 3028520 Alternator Pulley is characterized by its robust design and the materials used in its construction. It is engineered to withstand the demanding conditions of commercial truck operations. The pulley is made from high-quality materials that offer durability and resistance to wear. Its design ensures a secure fit on the alternator and smooth operation, contributing to the overall performance and longevity of the component 3.

Benefits of Using the Cummins 3028520 Alternator Pulley

The Cummins 3028520 Alternator Pulley offers several advantages. It provides improved efficiency in power generation, ensuring that the alternator operates at optimal levels. The pulley’s design and materials contribute to its reliability, reducing the likelihood of failure under stress. Additionally, it is compatible with Cummins engines, ensuring seamless integration and performance within the engine system.

Installation and Compatibility

Proper installation of the 3028520 Alternator Pulley is important for ensuring optimal performance. It should be installed according to the manufacturer’s guidelines to ensure it is securely fitted and aligned correctly with the alternator and serpentine belt. Compatibility with specific engine models and configurations should be verified to ensure the pulley functions as intended within the engine system.

Troubleshooting Common Issues

Common problems associated with alternator pulleys include belt slippage and pulley misalignment. These issues can lead to inefficient operation of the alternator and should be addressed promptly. Troubleshooting steps may involve inspecting the pulley and belt for wear, ensuring proper alignment, and making adjustments as necessary to resolve these issues.

Maintenance Tips

Regular maintenance practices can help prolong the lifespan of the 3028520 Alternator Pulley. This includes periodic inspections for signs of wear or damage, ensuring the pulley and belt are properly aligned, and following lubrication guidelines to reduce friction. Replacement criteria should be based on the condition of the pulley and its ability to function effectively within the engine system.

Cummins Corporation Overview

Cummins Inc. is a well-established manufacturer in the commercial truck industry, known for its commitment to quality and innovation in engine component manufacturing. The company has a history of producing reliable and high-performance engine parts, including alternator pulleys. Cummins’ reputation is built on its dedication to delivering products that meet the demanding requirements of commercial truck operations.

Cummins Alternator Pulley 3028520 Compatibility

The Cummins Alternator Pulley part number 3028520 is designed to fit a range of Cummins engines, ensuring reliable power generation and efficient operation. Here’s how this part integrates with specific engine models:

ISM CM570 and QSM11 CM570

The ISM CM570 and QSM11 CM570 engines benefit from the 3028520 alternator pulley due to its robust design and precision engineering. This pulley is engineered to handle the specific demands of these engines, providing a seamless connection between the alternator and the engine’s drive system. Its compatibility ensures optimal performance and longevity of the alternator, crucial for maintaining power output and efficiency.

L10 MECHANICAL and M11 CELECT PLUS

For the L10 MECHANICAL and M11 CELECT PLUS engines, the 3028520 alternator pulley is equally essential. These engines, known for their durability and power, require a pulley that can withstand high operational stresses. The 3028520 part is crafted to fit these engines perfectly, ensuring that the alternator operates at peak efficiency. This compatibility is vital for maintaining the overall performance and reliability of these engines, especially in demanding applications.

The 3028520 alternator pulley’s design allows it to interface smoothly with the alternator and engine drive systems across these models, ensuring consistent performance and minimal maintenance needs.

Role of Part 3028520 Alternator Pulley in Engine Systems

The Part 3028520 Alternator Pulley is an essential component in the efficient operation of the alternator within various engine systems. This pulley is strategically positioned at the alternator location, ensuring optimal performance and integration with other engine components.

Integration with the Drive System

The alternator pulley is a key element in the drive system of the engine. It is responsible for transmitting rotational force from the engine’s crankshaft to the alternator. This transfer of power is vital for the alternator to generate electrical energy, which is then used to charge the battery and power the vehicle’s electrical systems.

Connection to the Alternator

At the heart of its function, the alternator pulley works in conjunction with the alternator. As the engine runs, the pulley rotates, driving the alternator’s rotor. This rotation induces a magnetic field, which in turn generates electrical current. The efficiency of this process is heavily reliant on the smooth and consistent operation of the alternator pulley.

Mounting and Stability

The mounting of the alternator pulley is another area where its role becomes apparent. Properly mounted, the pulley ensures that the alternator is held in the correct position and alignment. This is important for maintaining the integrity of the drive belt and ensuring that the alternator operates within its designed parameters. Any misalignment can lead to increased wear on the belt, reduced efficiency, and potential failure of the alternator.

Overall System Harmony

In summary, the Part 3028520 Alternator Pulley plays a significant role in maintaining the harmony of the engine’s electrical system. Its proper function ensures that the alternator is effectively driven, leading to consistent electrical output and reliable vehicle performance. Engineers and mechanics must pay attention to the installation and maintenance of this component to ensure the longevity and efficiency of the engine system.

Conclusion

The Cummins 3028520 Alternator Pulley is a critical component in the operation of commercial trucks, ensuring the alternator functions correctly and contributes to the vehicle’s overall efficiency and reliability. Its robust design, compatibility with various Cummins engines, and the benefits it offers make it a valuable part of the engine system. Proper installation, maintenance, and troubleshooting are essential for maximizing the performance and lifespan of this component.


  1. Proceedings of the 5th Commercial Vehicle Technology Symposium CVT, Karsten Berns, Klaus Dressler, Patrick Fleischmann, Daniel Grges, Ralf Kalmar, Bernd Sauer, Nicole Stephan, Roman Teutsch, Martin Thul, Springer, 2018.

  2. Automotive Technician Training, Second Edition, Tom Denton and Hayley Pells, Routledge, 2022.

  3. Fundamentals of Automotive and Engine Technology: Standard Drives, Hybrid Drives, Brakes, Safety Systems, Konrad Reif, Springer Vieweg, 2014.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
5.5 x 4.3 x 2.5 in
Weight
1.65 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.