3935326
Alternator
Cummins®

The Cummins 3935326 Alternator is a component designed for use in commercial trucks, playing a significant role in their operation. This alternator is responsible for generating electrical power to charge the vehicle’s battery and to supply power to the truck’s electrical systems while the engine is running. Its efficient operation is vital for maintaining the truck’s electrical system functionality, ensuring that all electrical components operate correctly ¹.

Basic Concepts of an Alternator

An alternator is a device that converts mechanical energy into electrical energy. It functions by using a rotor that spins within a stationary set of coils, known as the stator, to generate an alternating current (AC). This AC is then converted into direct current (DC) by a rectifier, which is used 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 ².

Purpose of the 3935326 Alternator in Truck Operation

The 3935326 Alternator serves a pivotal role in the electrical system of a truck. It is responsible for charging the battery, ensuring that it remains at an optimal charge level. Additionally, it provides the necessary electrical power to operate the truck’s electrical components, such as lights, radios, and other systems, while the engine is running. This ensures that the truck can operate its electrical systems without draining the battery ³.

Key Features of the 3935326 Alternator

The 3935326 Alternator is characterized by its robust design and construction. It incorporates high-quality materials and advanced technological features to enhance its performance and durability. The alternator’s build quality ensures it can withstand the demanding conditions of commercial truck operation, while its technological advancements contribute to its efficiency and reliability.

Benefits of Using the 3935326 Alternator

Utilizing the 3935326 Alternator offers several advantages, including enhanced efficiency, durability, and reliability. These benefits contribute to the overall performance and longevity of the truck. The alternator’s efficient operation ensures that the battery remains charged and that the electrical systems function correctly, even under demanding conditions. Its durability and reliability mean that it can withstand the rigors of commercial truck operation, providing consistent performance over time.

Installation and Compatibility

Proper installation of the 3935326 Alternator is crucial for its optimal performance. It is important to follow the manufacturer’s guidelines for installation, including any prerequisites or special considerations. The alternator is designed to be compatible with a range of truck models and engine types, ensuring that it can be used in various commercial truck applications.

Maintenance and Troubleshooting

Regular maintenance is key to ensuring the longevity and optimal performance of the 3935326 Alternator. This includes checking the alternator’s connections, ensuring it is securely mounted, and monitoring its performance. Common issues that may arise include electrical faults or mechanical wear. Troubleshooting these issues may involve checking the alternator’s output, inspecting its components for damage, and ensuring that it is properly connected to the truck’s electrical system.

Performance Under Various Conditions

The 3935326 Alternator is designed to perform efficiently under a range of operating conditions. This includes extreme temperatures, high altitudes, and heavy-duty usage. Its resilience and efficiency in challenging environments ensure that it can continue to provide reliable electrical power, even when the truck is operating under demanding conditions.

Environmental Impact and Efficiency

The 3935326 Alternator is designed with efficiency in mind, reducing its environmental impact. Its energy-efficient operation means that it consumes less power to generate the necessary electrical output, contributing to lower fuel consumption and reduced emissions. Compared to older alternator technologies, it offers a more eco-friendly solution for commercial truck applications.

Cummins Corporation

Cummins Inc. is a leading manufacturer in the automotive and diesel engine industry, known for its commitment to innovation and quality. The company’s history is marked by a dedication to developing advanced technologies and high-quality products. Cummins’ position in the industry is built on its reputation for manufacturing reliable and efficient components, including the 3935326 Alternator ⁴.

Cummins Alternator 3935326 Compatibility

The Cummins alternator part number 3935326 is designed to be compatible with a range of Cummins engines, ensuring reliable power generation across various applications. Here is a breakdown of the engines with which this alternator is compatible:

Cummins 4B3.9 and 6B5.9 Engines

The alternator 3935326 fits seamlessly with the Cummins 4B3.9 and 6B5.9 engines. These engines are known for their robust performance and efficiency, making them suitable for heavy-duty applications. The compatibility ensures that the alternator can handle the power demands of these engines effectively.

Cummins B5.9 GAS PLUS CM556 and G5.9 Engines

The alternator 3935326 is also compatible with the Cummins B5.9 GAS PLUS CM556 and G5.9 engines. These engines are designed for versatility, offering reliable performance in various conditions. The alternator’s design ensures it can provide consistent power output, enhancing the overall efficiency of these engines.

Cummins ISB5.9 CM2880 B110, ISB5.9 CM2880 B140, and ISB5.9G CM2180 Engines

The Cummins ISB5.9 CM2880 B110, ISB5.9 CM2880 B140, and ISB5.9G CM2180 engines are part of the ISB series, known for their advanced technology and performance. The alternator 3935326 is engineered to work with these engines, ensuring optimal power generation and reliability. This compatibility is crucial for maintaining the high standards of performance expected from these engines.

Cummins QSB5.9 CM2880 B115 Engine

The Cummins QSB5.9 CM2880 B115 engine is another model that benefits from the compatibility with the alternator 3935326. This engine is designed for demanding applications, and the alternator ensures that it receives the necessary power to operate efficiently.

By ensuring compatibility with these engines, the Cummins alternator 3935326 provides a reliable power generation solution, enhancing the performance and efficiency of the engines it is paired with.

Role of Part 3935326 Alternator in Engine Systems

The alternator, specifically part 3935326, is an integral component within the engine system, responsible for generating electrical power to sustain the vehicle’s electrical systems while the engine is running. This alternator interfaces with several key components to ensure efficient operation and reliability.

Interaction with the Engine

The alternator is driven by a belt connected to the engine’s crankshaft. As the engine operates, the crankshaft’s rotation transfers mechanical energy to the alternator via this belt. This mechanical energy is then converted into electrical energy by the alternator.

Charging the Battery

One of the primary functions of the alternator is to recharge the vehicle’s battery. The electrical energy produced by the alternator is directed to the battery, maintaining its charge level. This ensures that the battery can provide the necessary power for starting the engine and operating electrical components when the engine is not running.

Powering Electrical Systems

The alternator supplies power to various electrical systems within the vehicle, including the ignition system, lighting, climate control, and infotainment systems. It ensures that these systems operate smoothly and consistently, regardless of the engine’s load or RPM.

Regulation of Output

The alternator’s output is regulated by the voltage regulator, which monitors the electrical system’s voltage and adjusts the alternator’s output accordingly. This regulation prevents overcharging of the battery and ensures a stable voltage supply to the vehicle’s electrical components.

Integration with the ECU

In modern vehicles, the alternator’s operation is often monitored and controlled by the Engine Control Unit (ECU). The ECU receives data from various sensors, including the battery voltage sensor, and adjusts the alternator’s output to meet the vehicle’s electrical demands efficiently.

Support for Start-Stop Systems

In vehicles equipped with start-stop systems, the alternator plays a vital role in quickly recharging the battery after the engine restarts. This rapid recharge capability is essential for the seamless operation of the start-stop system, which helps improve fuel efficiency and reduce emissions.

Contribution to Overall Efficiency

By efficiently converting mechanical energy into electrical energy, the alternator contributes to the overall efficiency of the engine system. It ensures that the electrical components receive a consistent power supply, which is essential for the vehicle’s performance and reliability.

Conclusion

The Cummins 3935326 Alternator is a critical component in the operation of commercial trucks, ensuring the efficient generation and distribution of electrical power. Its robust design, compatibility with various Cummins engines, and advanced features contribute to the overall performance and reliability of the vehicles it is installed in. Regular maintenance and proper installation are essential for maximizing the benefits of this alternator, ensuring that it continues to provide reliable power generation under a wide range of operating conditions.