3093179
Alternator Pulley
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$649.95 $773.44

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 3093179 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 charge the battery and power the vehicle’s electrical systems. The significance of this Cummins part lies in its role in ensuring the alternator functions correctly, thereby contributing to the overall reliability and performance of the truck 1.

Basic Concepts of Alternator Pulleys

An alternator pulley is a part of the alternator system that allows the alternator to be driven by the engine’s crankshaft via a belt. The pulley’s function is to transfer rotational force from the engine to the alternator, enabling it to generate electricity. This electrical generation is vital for the truck’s electrical system, powering everything from the lights to the engine control unit 2.

Purpose of the 3093179 Alternator Pulley

This part plays a role in the operation of a truck by connecting the alternator to the belt drive system. This connection ensures that as the engine runs, the alternator receives the necessary rotational force to generate electricity. The pulley’s design and placement are critical for maintaining the correct tension and alignment of the belt, which in turn affects the efficiency and reliability of the alternator 3.

Key Features

The design and construction of the 3093179 incorporate materials and dimensions that are tailored for durability and performance in the demanding environment of a commercial truck. The pulley is typically made from high-strength materials to withstand the rigors of continuous operation. Its dimensions are precisely engineered to ensure a proper fit and efficient operation within the truck’s engine compartment. Unique characteristics may include a ribbed surface for better belt grip or a specific groove design to accommodate different belt types.

Benefits

This Cummins part offers several advantages, including improved efficiency in power transmission from the engine to the alternator. Its reliable design contributes to the overall dependability of the truck’s electrical system. Additionally, the pulley is compatible with Cummins engines, ensuring seamless integration and optimal performance.

Installation Process

Installing the 3093179 requires careful attention to detail to ensure proper fitting and function. The process involves aligning the pulley with the alternator and securing it in place using the appropriate tools. It is important to follow manufacturer guidelines to avoid common installation pitfalls that could lead to inefficiencies or damage.

Maintenance Tips

Regular maintenance of the 3093179 is key to ensuring its longevity and optimal performance. This includes periodic inspections for signs of wear or damage, such as cracks or excessive belt wear. Keeping the pulley and surrounding components clean and free of debris can also contribute to its efficient operation.

Troubleshooting Common Issues

Typical problems with the 3093179 may include squeaking, misalignment, or belt wear. Addressing these issues promptly can prevent more significant problems down the line. Solutions may involve adjusting the belt tension, realigning the pulley, or replacing worn components.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a strong reputation in the commercial truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range and long-standing history in the industry underscore the reliability and performance of components like the 3093179.

Cummins Alternator Pulley 3093179 Compatibility

The Cummins Alternator Pulley part number 3093179 is designed to fit seamlessly with several engine models, ensuring optimal performance and reliability. This alternator pulley is engineered to work with the following engines:

QST30 Series

  • QST30 CM2350 T101
  • QST30 CM552

The QST30 series engines are known for their robust design and efficiency, making them suitable for a variety of applications. The alternator pulley 3093179 is specifically tailored to interface with these engines, ensuring that the alternator operates smoothly and efficiently. This compatibility is crucial for maintaining the electrical systems of these engines, providing consistent power to the vehicle’s electrical components.

The design of the 3093179 alternator pulley ensures that it can handle the specific torque and rotational speeds of the QST30 engines. This compatibility is achieved through precise engineering and rigorous testing, ensuring that the pulley will perform reliably under various operating conditions. The use of high-quality materials further enhances the durability and longevity of the part, making it a dependable choice for maintaining the QST30 engines.

Role of Part 3093179 Alternator Pulley in Engine Systems

The alternator pulley, identified by part number 3093179, is an integral component in the efficient operation of the alternator within an engine system. This pulley is responsible for transferring rotational energy from the engine’s drive belt to the alternator.

When the engine operates, the crankshaft drives the pulley, which in turn rotates the alternator. The alternator, powered by this rotation, generates electrical energy to charge the battery and power the vehicle’s electrical systems.

The alternator pulley is mounted securely to the alternator, ensuring that the rotational force is effectively transmitted without slippage or loss of efficiency. This mounting must be precise to maintain the correct tension on the drive belt, which is essential for the smooth and reliable operation of the alternator.

In summary, the alternator pulley plays a significant role in the engine system by ensuring that the alternator receives the necessary mechanical energy to function correctly, thereby supporting the vehicle’s electrical needs.

Conclusion

The Cummins 3093179 Alternator Pulley is a critical component in the operation of commercial trucks, ensuring the alternator functions efficiently to power the vehicle’s electrical systems. Its design, compatibility with Cummins engines, and the importance of proper installation and maintenance highlight the role this part plays in the overall performance and reliability of the truck.


  1. Clive Gifford, Cars Encyclopedia, DK Publishing, 2014.

  2. Konrad Reif Ed, Brakes Brake Control and Driver Assistance Systems Function Regulation and Components, Springer, 2014.

  3. Matthew Huang, Vehicle Crash Dynamics, CRC Press, 2002.

SPECIFICATIONS

Package Dimensions
3.375 x 2.5 x 3.38 in
Weight
1.13 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.