4996706
Starting Motor
Cummins®

Introduction

The Cummins 4996706 Starting Motor is a critical component for commercial trucks, designed to convert electrical energy into mechanical energy to initiate engine start-up. This motor ensures reliable engine starts under various conditions, highlighting its importance in truck operations.

Basic Concepts of Starting Motors

Starting motors operate based on electromagnetism. Electrical current flowing through the motor’s windings generates a magnetic field that interacts with the motor’s components to produce rotational motion. This motion is transferred to the engine’s flywheel, cranking the engine to start it. The efficiency and reliability of this conversion process are essential for the smooth operation of any vehicle ¹.

Purpose of the Cummins 4996706 Starting Motor

The Cummins 4996706 Starting Motor provides the necessary torque to turn the engine over during start-up. It engages with the engine’s flywheel, using electrical power from the vehicle’s battery to initiate the cranking process. This action is fundamental to starting the engine and is a key component in the vehicle’s starting system ².

Key Features

This Cummins part is characterized by its robust design and construction, utilizing high-quality materials to ensure durability and performance. It features a compact yet powerful motor housing, precision-machined components, and a reliable electrical system. These attributes contribute to its effectiveness in heavy-duty applications, where reliability and strength are paramount.

Benefits

The advantages of the Cummins 4996706 Starting Motor include its reliability in demanding environments, efficiency in converting electrical energy to mechanical motion, and durability that ensures long-term performance. These benefits make it a preferred choice for commercial truck applications, where consistent and powerful starting performance is required.

Installation and Integration

Proper installation of the Cummins 4996706 Starting Motor involves ensuring it is correctly aligned with the engine’s flywheel and securely mounted. It is important to follow manufacturer guidelines for electrical connections to prevent issues such as short circuits or insufficient power delivery. Careful consideration should be given to the motor’s orientation and the routing of electrical cables to avoid interference with other components.

Troubleshooting Common Issues

Common problems with starting motors can include failure to engage, unusual noises during operation, or a lack of power. Troubleshooting steps may involve checking electrical connections for corrosion or damage, inspecting the motor for signs of wear or mechanical failure, and ensuring the battery is providing sufficient voltage. Addressing these issues promptly can help maintain the motor’s performance and reliability.

Maintenance Tips

Routine maintenance of the Cummins 4996706 Starting Motor includes regular inspection for signs of wear, cleaning to remove dirt and debris that could affect performance, and lubrication of moving parts to reduce friction and wear. Following these practices can help ensure the motor’s longevity and optimal performance.

Performance Enhancements

Enhancements to the performance of the Cummins 4996706 Starting Motor can be achieved through performance tuning or the addition of accessories such as upgraded electrical components or heat shields. These modifications can improve the motor’s efficiency, reliability, and durability, making it better suited for demanding applications.

Safety Considerations

When working with starting motors, it is important to observe safety precautions such as disconnecting the battery before beginning any work to prevent electrical shock. Proper handling of the motor and its components, adherence to electrical safety practices, and following maintenance procedures as outlined by the manufacturer are essential for safe operation and maintenance.

Cummins 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 commitment to quality, Cummins has established a reputation for producing reliable and high-performance components for the automotive and heavy-duty truck industries. Their dedication to advancing technology and meeting the needs of their customers underscores their position as a leader in the industry.

Compatibility with Cummins Engines

The Cummins part number 4996706, a Starting Motor, is designed to be compatible with a wide range of Cummins engines. This part is engineered to provide reliable and efficient starting power across various engine models.

For the 4B3.9, 6B5.9, B4.5, and B5.9 GAS PLUS CM556 engines, the 4996706 Starting Motor ensures a robust starting process, essential for the smooth operation of these engines. Similarly, for the B6.7 CM2670 B153B, F3.8 CM2350 F128C, and G5.9 engines, this part is tailored to meet the specific demands of these models, ensuring optimal performance.

The ISB series engines, including ISB CM2150, ISB/ISD6.7 CM2150 SN, ISB6.7 CM2250, ISB6.7 CM2350 B101, ISB6.7 G CM2180 B118, ISBE CM2150, and ISBE4 CM850, all benefit from the 4996706 Starting Motor. This part is designed to handle the high torque and power requirements of these engines, ensuring a consistent and reliable start.

For the QSB series engines, such as QSB4.5 CM2250 EC, QSB4.5 CM850 (CM2850), QSB5.9 CM850, QSB6.7 CM2250, QSB6.7 CM2350 B105, QSB6.7 CM850 (CM2850), QSB6.7 M CM2250, and QSB7 CM2880 B117, the 4996706 Starting Motor is engineered to provide the necessary power and efficiency. This ensures that these engines can start reliably under various conditions.

Additionally, the QSF3.8 CM2350 F107 and QSF3.8 CM2880 F112 engines also utilize the 4996706 Starting Motor. This part is designed to meet the specific needs of these engines, ensuring that they can start efficiently and reliably, even in demanding environments.

Role of Part 4996706 Starting Motor in Engine Systems

The part 4996706 Starting Motor is integral to the functionality of various engine systems, particularly when integrated with an Engine Installation Kit. This motor is responsible for initiating the engine’s operation by converting electrical energy into mechanical energy, which in turn rotates the engine’s crankshaft.

When paired with an Engine Installation Kit, the Starting Motor ensures a seamless integration into the engine system. The kit typically includes components such as mounting brackets, wiring harnesses, and necessary fasteners, which facilitate the secure and efficient installation of the Starting Motor.

The Starting Motor’s role extends beyond mere initiation; it ensures that the engine reaches the necessary RPM for the fuel ignition process to commence. This is achieved through a well-coordinated interaction with the battery, solenoid, and ignition system. The Starting Motor’s reliable performance is essential for consistent engine starts, which is particularly important in applications where engine reliability is paramount.

Conclusion

In summary, the Cummins 4996706 Starting Motor, when used in conjunction with an Engine Installation Kit, plays a significant role in the efficient and reliable starting of engine systems. Its integration with other components ensures that the engine can operate smoothly from the moment of ignition.