3282555
Alternator Pulley
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$509.95 $606.84

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 Cummins 3282555 Alternator Pulley is a component designed for use in commercial trucks equipped with Cummins engines. 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 Cummins part lies in its role in ensuring the alternator functions correctly, thereby contributing to the overall efficiency and reliability of the truck.

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 connection allows the engine’s rotational force to be transferred to the alternator, enabling it to generate electricity. The alternator pulley’s design and placement are important for maintaining the proper tension and alignment of the serpentine belt, which is essential for the efficient operation of the alternator and other engine-driven accessories 1.

Purpose and Role of the 3282555 Alternator Pulley

The 3282555 Alternator Pulley plays a specific role in the operation of a truck by driving the alternator. As the engine rotates, the pulley transfers this motion to the alternator, which then converts mechanical energy into electrical energy. This electrical energy is used to power the truck’s electrical systems and recharge the battery, ensuring that the truck can operate under various conditions without interruption.

Key Features

The design and construction of the 3282555 Alternator Pulley include several features that enhance its performance and durability. It is typically made from high-strength materials to withstand the rigors of commercial truck operation. The pulley’s size and groove design are tailored to fit the specific requirements of Cummins engines, ensuring optimal performance and compatibility. Additionally, the pulley may feature a ribbed or smooth surface to improve belt grip and reduce wear.

Benefits of Using the 3282555 Alternator Pulley

The 3282555 Alternator Pulley offers several advantages, including improved efficiency and reliability. Its precise design ensures that the alternator operates within its optimal range, leading to more consistent electrical output. The pulley’s compatibility with Cummins engines means that it can be seamlessly integrated into the truck’s engine system, providing a reliable solution for alternator drive needs.

Installation and Compatibility

Proper installation of the 3282555 Alternator Pulley is crucial for ensuring its effectiveness and longevity. Installation procedures may vary depending on the specific engine model, but generally involve aligning the pulley with the alternator and securing it in place with the appropriate fasteners. It is important to use the correct tools and follow manufacturer guidelines to ensure a proper fit and function. The pulley is designed to be compatible with a range of Cummins engine models, making it a versatile choice for many commercial truck applications.

Maintenance and Troubleshooting

Regular maintenance of the 3282555 Alternator Pulley is important for ensuring its longevity and optimal performance. This includes checking the serpentine belt for signs of wear or damage, ensuring proper tension, and inspecting the pulley for any signs of damage or misalignment. Common issues that may arise include belt slippage or pulley wear, which can be addressed by adjusting the belt tension or replacing worn components as necessary.

Performance and Efficiency

The 3282555 Alternator Pulley contributes to the overall performance and fuel efficiency of the truck by ensuring that the alternator operates efficiently. A well-functioning alternator pulley system can lead to more consistent electrical output, reducing the strain on the engine and potentially improving fuel efficiency. Regular maintenance and proper installation are key to maximizing these benefits.

Cummins Corporation 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 innovation in the commercial truck industry. The company’s product range includes a variety of engines and components designed to meet the demanding requirements of commercial vehicles, ensuring reliability and performance in a wide range of applications.

Cummins Alternator Pulley 3282555 Compatibility

The Cummins Alternator Pulley part number 3282555 is designed to fit a variety of engine models, ensuring compatibility and reliability across different applications. This part is integral to the engine’s electrical system, facilitating the generation of power by the alternator.

Compatible Engines

  • 4B3.9 and 6B5.9 Engines

The 3282555 Alternator Pulley is specifically engineered to fit the 4B3.9 and 6B5.9 engines. These engines are known for their robust performance and are often used in heavy-duty applications. The pulley’s design ensures a secure fit and efficient power transfer, contributing to the overall reliability of these engines.

  • QSB5.9 44 CM550 Engine

Similarly, the QSB5.9 44 CM550 engine is also compatible with the 3282555 Alternator Pulley. This engine is part of the Cummins QSB series, which is renowned for its durability and efficiency in various industrial and commercial applications. The pulley’s precision engineering ensures that it works seamlessly with the QSB5.9 44 CM550 engine, providing consistent performance and longevity.

Ensuring Compatibility

When replacing or maintaining the alternator pulley, it is crucial to ensure that the part number 3282555 is compatible with the specific engine model in use. This compatibility is achieved through meticulous design and testing, ensuring that the pulley fits perfectly and functions optimally within the engine’s electrical system.

Role of Part 3282555 Alternator Pulley in Engine Systems

The alternator pulley, identified by part number 3282555, is integral to the efficient operation of the alternator within an engine system. This pulley is mounted on the alternator and interfaces directly with the engine’s drive belt. Its primary function is to transfer rotational force from the engine to the alternator, enabling the alternator to generate electrical power.

When the engine operates, the crankshaft rotates, driving the alternator pulley via the serpentine belt. This rotational motion is transmitted to the alternator, which then converts mechanical energy into electrical energy. This electricity is essential for powering the vehicle’s electrical systems and recharging the battery.

The alternator pulley must be precisely aligned and securely mounted to ensure smooth and consistent operation. Proper mounting of the pulley is vital for maintaining the correct tension on the drive belt, which is necessary for efficient power transmission. Any misalignment or looseness can lead to belt slippage, reduced alternator efficiency, and potential damage to both the pulley and the alternator.

In summary, the alternator pulley (part 3282555) plays a significant role in the engine system by ensuring the alternator receives the necessary rotational force to function correctly. Its proper installation and maintenance are essential for the reliable operation of the vehicle’s electrical system.

Conclusion

The Cummins 3282555 Alternator Pulley is a critical component in the operation of commercial trucks equipped with Cummins engines. Its role in facilitating the alternator’s function ensures the reliable generation of electrical power, which is essential for the truck’s electrical systems and battery recharging. The pulley’s design, compatibility with various Cummins engines, and the importance of proper installation and maintenance underscore its significance in enhancing the overall performance and efficiency of the truck.


  1. Libby Osgood, Gayla Cameron, and Emma Christensen, Engineering Mechanics: Statics (Creative Commons, 2024).

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
8.0 x 8.0 x 6.0 in
Weight
0.783 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.