3604474RX
Alternator D/R 15SI 12V Neg 105A T116
Cummins®

AVAILABLE

Cummins®

1 is currently available

Ships within 2-4 business days

$509.95 $606.84
Refundable Core Charge: $76.95

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 3604474RX Alternator D/R 15SI 12V Neg 105A T116 by Cummins is a component designed for heavy-duty truck applications. Its primary function is to convert mechanical energy into electrical energy, which is used to charge the vehicle’s battery and power its electrical systems. This part is significant in maintaining the electrical integrity of heavy-duty trucks, ensuring that all electrical components operate efficiently and reliably 2.

Basic Concepts

Alternators are devices that convert mechanical energy, typically from the engine, into electrical energy. This conversion is achieved through electromagnetic induction, where a rotor spins within a stationary stator, generating an alternating current (AC) that is then converted to direct current (DC) by a rectifier. This DC power is used to charge the battery and supply electricity to the vehicle’s electrical systems 1.

Functionality of the Alternator D/R 15SI 12V Neg 105A T116

This Cummins part operates by being driven via a belt connected to the engine. As the engine runs, it spins the alternator’s rotor, which induces a current in the stator windings. This alternating current is then converted to direct current by the rectifier within the alternator. The DC output is used to charge the truck’s battery and power electrical components such as lights, sensors, and other systems. The alternator also plays a role in regulating voltage to prevent overcharging of the battery.

Key Features

The Alternator D/R 15SI 12V Neg 105A T116 features a 12-volt output and a maximum amperage rating of 105 amps. It is designed with a negative ground configuration, which is standard in most vehicle electrical systems. The alternator’s robust construction and efficient design ensure reliable performance under the demanding conditions typical of heavy-duty truck operations.

Benefits

This part offers several benefits, including enhanced electrical system performance, increased reliability, and improved efficiency. Its high amperage rating ensures that it can meet the electrical demands of modern heavy-duty trucks, while its durable construction contributes to long-term reliability. The efficient design of the alternator also helps to minimize energy loss, contributing to overall system efficiency.

Troubleshooting and Maintenance

Common issues with the Alternator D/R 15SI 12V Neg 105A T116 may include electrical output fluctuations, belt wear, or rectifier failure. Troubleshooting steps may involve checking the electrical connections, inspecting the drive belt for wear, and testing the alternator’s output with a multimeter. Regular maintenance, such as ensuring the drive belt is properly tensioned and inspecting the alternator for signs of wear or damage, can help to prevent issues and ensure optimal performance.

Integration with Truck Systems

The Alternator D/R 15SI 12V Neg 105A T116 is designed to integrate seamlessly with the electrical systems of various heavy-duty trucks. It is compatible with a range of truck makes and models, ensuring that it can be used in a variety of applications. The alternator works in conjunction with the vehicle’s battery, voltage regulator, and electrical components to maintain a stable and reliable electrical system.

Performance Considerations

Several factors may affect the performance of the Alternator D/R 15SI 12V Neg 105A T116, including operating conditions, load requirements, and environmental factors. In high-load situations, the alternator must work harder to meet the electrical demands of the truck, which can impact its performance and longevity. Environmental factors such as extreme temperatures can also affect the alternator’s efficiency and reliability.

Cummins Overview

Cummins is a well-established manufacturer in the automotive industry, known for its commitment to quality and innovation. With a history of producing reliable and high-performance components, Cummins has built a reputation for excellence in the manufacturing of automotive parts. The company’s dedication to research and development ensures that its products, including the Alternator D/R 15SI 12V Neg 105A T116, meet the rigorous demands of heavy-duty truck applications 2.

Conclusion

The 36044474RX Alternator D/R 15SI 12V Neg 105A T116 by Cummins is a vital component for maintaining the electrical integrity of heavy-duty trucks. Its robust design, efficient operation, and integration with truck systems make it a reliable choice for demanding applications. Regular maintenance and troubleshooting can help ensure its optimal performance and longevity.


  1. Rudolf Limpert, Brake Design and Safety, Third Edition, SAE International, 2011.

  2. Sean Bennett, Modern Diesel Technology Light Duty Diesels, Cengage Learning, 2012.

* 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.