5264648
Alternator
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$689.95 $821.04

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 5264648 Alternator is a component designed for use in commercial trucks. It serves a vital role in maintaining the electrical system of the vehicle by generating power to charge the battery and supply electricity to the truck’s electrical components while the engine is running. Its significance lies in ensuring the continuous operation of electrical systems, which is essential for the functionality and safety of commercial trucks.

Basic Concepts of Alternators

An alternator is a device that converts mechanical energy into electrical energy. It functions by using a rotor that spins within a stationary stator to generate an alternating current (AC), which is then converted into direct current (DC) by a rectifier to charge the battery and power the vehicle’s electrical systems. Alternators differ from generators in that they produce AC, which is then converted to DC, whereas generators directly produce DC 1.

Purpose of the Cummins 5264648 Alternator

This part is integral to the operation of a truck. It plays a role in charging the battery, ensuring that it remains sufficiently charged to start the engine and power the truck’s electrical systems. Additionally, it supplies power to various electrical components such as lights, radios, and other accessories while the engine is running, contributing to the overall functionality and convenience of the vehicle.

Key Features

The Cummins 5264648 Alternator is characterized by its robust design and high build quality, ensuring durability and reliability in demanding conditions. It incorporates advanced technological features that enhance its efficiency and performance. These features may include improved heat dissipation, enhanced electrical output, and a compact design that allows for easier installation and integration into the truck’s electrical system.

Benefits

Utilizing this Cummins part offers several advantages. Its reliability ensures consistent performance, even under heavy-duty conditions. The alternator’s design contributes to its longevity, reducing the need for frequent replacements. Furthermore, its efficiency in converting mechanical energy to electrical energy helps in maintaining the truck’s overall performance and reducing unnecessary strain on the engine.

Installation and Compatibility

Proper installation of the 5264648 is crucial for its optimal performance. It is designed to be compatible with a range of truck models, ensuring that it can be seamlessly integrated into the vehicle’s electrical system. Following the manufacturer’s guidelines for installation ensures that the alternator functions correctly and efficiently.

Maintenance and Troubleshooting

Regular maintenance of the 5264648 is important for ensuring its optimal performance. This includes regular checks for signs of wear or damage, cleaning the alternator to remove any dirt or debris, and replacing any worn-out components as necessary. Troubleshooting common issues may involve checking the electrical connections, testing the output voltage, and inspecting the belt tension to ensure that the alternator is operating efficiently.

Performance in Heavy-Duty Applications

The 5264648 is designed to perform efficiently in heavy-duty truck applications. It is capable of handling high electrical loads and operating under demanding conditions, ensuring that the truck’s electrical systems remain powered and functional. Its robust design and advanced features contribute to its ability to maintain performance in challenging environments.

Environmental and Efficiency Considerations

The 5264648 is designed with efficiency in mind, converting mechanical energy to electrical energy with minimal loss. This efficiency contributes to reducing the overall environmental impact of the vehicle by minimizing unnecessary energy consumption. Additionally, the alternator may incorporate eco-friendly features that further enhance its environmental performance.

Cummins Corporation Overview

Cummins Inc. is a renowned manufacturer in the automotive industry, particularly known for its production of diesel engines and related components. The company has a long-standing reputation for quality and innovation, making it a trusted name in the production of automotive and heavy-duty truck parts. Its commitment to excellence is reflected in the design and performance of products like the 5264648 2.

Compatibility

This Cummins part is designed to fit a variety of Cummins engines, ensuring reliable power generation across different models. This alternator is engineered to meet the demands of various engine configurations, providing consistent performance and durability.

Compatible Engines

  • 4B3.9
  • 6B5.9
  • B5.9 GAS PLUS CM556
  • ISB5.9 CM2880 B110
  • ISB5.9 CM2880 B140
  • ISB5.9G CM2180
  • QSB6.7 CM850 (CM2850)

Grouping of Compatible Engines

  • ISB Series: The ISB5.9 CM2880 B110 and ISB5.9 CM2880 B140 engines are part of the Cummins ISB series, known for their robust performance and efficiency. The ISB5.9G CM2180 also falls under this category, ensuring seamless compatibility with the 5264648.
  • QSB Series: The QSB6.7 CM850 (CM2850) engine is part of the QSB series, which is designed for heavy-duty applications. This series benefits from the reliable power generation capabilities of the 5264648.
  • Other Models: The 4B3.9, 6B5.9, and B5.9 GAS PLUS CM556 engines, while part of different series, are also compatible with the 5264648, ensuring a broad range of applications for this part.

This compatibility ensures that the alternator can be used across multiple engine models, providing a versatile solution for maintaining power supply in various Cummins engines.

Role of Part 5264648 Alternator in Engine Systems

The alternator, specifically part 5264648, is a component in the engine system, responsible for generating electrical power to sustain the vehicle’s electrical needs while the engine is running. This component interfaces with several other systems to ensure seamless operation.

Interaction with the Engine

The alternator is driven by a belt connected to the engine’s crankshaft. As the engine runs, the crankshaft’s rotation drives the alternator, which in turn generates electricity. This electrical energy is vital for powering the vehicle’s electrical systems and recharging the battery.

Relationship with the Battery

The alternator works in conjunction with the battery to maintain the vehicle’s electrical system. While the battery provides the initial power to start the engine, the alternator takes over once the engine is running, supplying continuous power to the electrical components and recharging the battery.

Support for Electrical Systems

The electricity generated by the alternator is distributed throughout the vehicle to power various electrical components, including the ignition system, lighting, climate control, and entertainment systems. This ensures that all electrical functions operate smoothly and efficiently.

Integration with the Voltage Regulator

The alternator is often paired with a voltage regulator, which monitors and maintains the electrical output at a consistent level. This prevents overcharging or undercharging of the battery, ensuring the electrical system remains balanced and functional.

Contribution to the Starter System

Although the starter motor relies primarily on the battery for initial cranking power, a well-functioning alternator ensures the battery remains charged, thereby supporting the starter system’s reliability over time.

Impact on the Charging System

The alternator is the core component of the vehicle’s charging system. It converts mechanical energy from the engine into electrical energy, which is then used to power the vehicle’s electrical systems and recharge the battery. This continuous cycle is essential for the vehicle’s operation.

Influence on the Engine Control Unit (ECU)

The alternator’s performance can affect the Engine Control Unit (ECU). The ECU monitors the electrical system’s voltage and adjusts the engine’s operation to optimize performance and efficiency. A malfunctioning alternator can lead to inaccurate readings and potentially affect engine performance.

Conclusion

In summary, the 5264648 plays a significant role in maintaining the vehicle’s electrical system, ensuring all components function correctly and efficiently. Its robust design, compatibility with various Cummins engines, and advanced features make it a reliable choice for heavy-duty applications. Regular maintenance and proper installation are crucial for ensuring optimal performance and longevity of this part.


  1. Arthur J Caines, Roger F Haycock and John E Hillier, Automotive Lubricants Reference Book, SAE International, 2004.

  2. Nicholas Goodnight and Kirk Van Gelder, Automotive Braking Systems, Jones & Bartlett Learning, 2018.

SPECIFICATIONS

Package Dimensions
15.0 x 15.0 x 28.0 in
Weight
2 lbs
* 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.