3284955
Alternator Pulley
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$199.95 $237.94

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 3284955 Alternator Drive 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 charge the battery and power the vehicle’s electrical systems. The significance of this pulley lies in its role in ensuring the alternator operates efficiently, thereby contributing to the overall performance and reliability of the truck 1.

Basic Concepts of Alternator Drive Pulleys

An alternator drive 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 proportional to the engine’s RPM, enabling it to generate electricity. The alternator drive pulley works in conjunction with the alternator and serpentine belt to maintain the electrical system’s functionality, ensuring a consistent power supply to the vehicle’s electrical components 2.

Role of the 3284955 Alternator Drive Pulley in Truck Operation

The 3284955 Alternator Drive Pulley plays a specific role in the operation of a truck by ensuring the alternator receives the necessary rotational force from the engine. This, in turn, allows the alternator to generate electricity to charge the battery and power the truck’s electrical systems. The efficient operation of this pulley is vital for maintaining the truck’s electrical system and overall performance, especially under varying load conditions typical in commercial truck applications 3.

Key Features

The Cummins 3284955 Alternator Drive Pulley is characterized by several key features that enhance its functionality. These include a robust material construction that ensures durability under the demanding conditions of commercial truck use. The design elements of the pulley are tailored to provide optimal performance, with precise engineering to ensure smooth operation and efficient power transmission. Additionally, the pulley may feature unique characteristics such as a specific groove pattern on the pulley surface to enhance belt grip and reduce the risk of slippage 4.

Benefits of Using the 3284955 Alternator Drive Pulley

Using the Cummins 3284955 Alternator Drive Pulley offers several benefits in commercial truck applications. These include improved efficiency in power transmission from the engine to the alternator, enhanced durability to withstand the rigors of heavy-duty use, and increased reliability in ensuring consistent electrical system performance. The design and construction of this pulley contribute to these benefits, making it a valuable component for maintaining the electrical system’s integrity in commercial trucks 1.

Installation Considerations

Proper installation of the 3284955 Alternator Drive Pulley is crucial for ensuring its effective operation. Guidelines for installation may include ensuring the pulley is correctly aligned with the alternator and engine crankshaft to prevent undue stress on the component. It is also important to follow any specific requirements or recommendations provided by Cummins to ensure the pulley is installed in a manner that optimizes its performance and longevity 2.

Troubleshooting Common Issues

Common issues that may arise with the 3284955 Alternator Drive Pulley include belt slippage, pulley misalignment, and wear or damage to the pulley surface. Troubleshooting these issues may involve inspecting the pulley and belt for signs of wear, ensuring the pulley is correctly aligned, and addressing any damage or misalignment to restore optimal operation. Recommended solutions may include replacing worn components, realigning the pulley, or addressing any underlying issues that contribute to pulley or belt wear 3.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins 3284955 Alternator Drive Pulley, regular maintenance is recommended. This may include inspecting the pulley and belt for signs of wear or damage, cleaning the pulley to remove any debris or buildup that could affect its operation, and lubricating moving parts to reduce friction and wear. Adhering to these maintenance tips can help prevent issues and ensure the pulley continues to operate efficiently 4.

Compatibility and Applications

The 3284955 Alternator Drive Pulley is designed for use with specific Cummins engine models and is suitable for various types of commercial trucks. Its compatibility ensures it can be integrated into the electrical system of these vehicles, providing reliable performance in demanding applications 1.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a reputation for quality and reliability, Cummins serves commercial truck, bus, construction, agricultural, and power generation markets. The company’s commitment to excellence is reflected in its product offerings, including the 3284955 Alternator Drive Pulley, which is designed to meet the high standards of performance and durability expected in commercial truck applications 2.

Cummins Alternator Drive Pulley 3284955 Compatibility

The Cummins Alternator Drive Pulley part number 3284955 is designed to fit seamlessly with various engine models, ensuring optimal performance and reliability. This part is engineered to work with the following engines:

  • 6B5.9

The 3284955 Alternator Drive Pulley is specifically crafted to interface with the alternator system of the 6B5.9 engine. It ensures that the alternator operates efficiently, maintaining the necessary power output for the vehicle’s electrical systems. The pulley’s design allows for precise alignment and smooth operation, reducing wear and tear on the alternator and associated components.

When installed in the 6B5.9 engine, the 3284955 Alternator Drive Pulley provides a robust connection that can withstand the rigors of continuous operation. This compatibility ensures that the alternator can maintain consistent performance, contributing to the overall reliability and longevity of the engine.

By using the Cummins Alternator Drive Pulley part number 3284955, users can expect a seamless integration with the 6B5.9 engine, facilitating efficient power generation and distribution. This part is a critical component in maintaining the electrical integrity of the engine, ensuring that all systems function correctly and reliably 3.

Role of Part 3284955 Alternator Drive Pulley in Engine Systems

The part 3284955 Alternator Drive Pulley is an integral component in the efficient operation of engine systems. It is responsible for transferring rotational force from the engine to the alternator, ensuring that the alternator operates at the correct speed to generate electricity.

When the engine is running, the drive pulley is connected to the crankshaft via a belt. This connection allows the pulley to rotate at the same speed as the crankshaft. As the pulley rotates, it drives the alternator, which in turn generates electrical power to charge the battery and power the vehicle’s electrical systems.

The mounting of the alternator is also influenced by the drive pulley. Proper alignment and secure mounting of the alternator are essential for the efficient transfer of rotational force. The drive pulley must be correctly positioned and fastened to the alternator to ensure smooth operation and prevent excessive wear or damage to the alternator or other components.

In summary, the part 3284955 Alternator Drive Pulley plays a significant role in the engine system by ensuring the alternator receives the necessary rotational force to generate electricity. Its proper function and mounting are essential for the overall performance and reliability of the engine system 4.

Conclusion

The Cummins 3284955 Alternator Drive Pulley is a critical component in the operation of commercial trucks, ensuring the alternator functions efficiently to maintain the vehicle’s electrical systems. Its robust design, precise engineering, and compatibility with specific Cummins engine models make it a reliable choice for heavy-duty applications. Proper installation, regular maintenance, and addressing common issues are essential for maximizing the performance and longevity of this part.


  1. Quansheng Zhan, Shengbo Eben, Li Kun Deng, Automotive Heating Ventilation and Air Conditioning, Jones Bartlett Learning, 2018.

  2. John Dixon, Modern Diesel Technology Preventive Maintenance and Inspection, Delmar Cengage Learning, 2010.

  3. Zhiyu Han, Simulation and Optimization of Internal Combustion Engines, SAE International, 2022.

  4. Tom Denton and Hayley Pells, Automotive Technician Training Theory, Routledge, 2022.

SPECIFICATIONS

Package Dimensions
6.0 x 7.0 x 6.0 in
Weight
0.6 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.