4093941
Starting Motor
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$689.95 $821.04

Oversize Item

This is an oversize product. Additional shipping fees may apply.

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 4093941 Starting Motor is a component designed for use in commercial trucks. It plays a role in the vehicle’s ignition system by providing the necessary torque to crank the engine, thereby initiating the starting process. Its significance lies in ensuring reliable and efficient engine starts, which is fundamental to the operation of commercial trucks.

Basic Concepts of Starting Motors

A starting motor, or starter, is an electric motor that converts electrical energy into mechanical energy. This conversion enables the motor to rotate the engine’s crankshaft, which in turn starts the engine. The starting motor is a part of the ignition system, working in conjunction with the battery and ignition switch. The principles of electric motors, such as electromagnetic induction, are applied in starting motors to generate the force needed for engine cranking 1.

Purpose of the 4093941 Starting Motor

The Cummins 4093941 Starting Motor is specifically engineered to initiate engine cranking in commercial trucks. It plays a role in the starting process by engaging with the flywheel or flexplate of the engine. Once activated, it rotates the engine at a speed sufficient to allow combustion to occur, thereby starting the engine. This motor is designed to handle the high torque requirements of large diesel engines commonly found in commercial trucks 2.

Key Features

The Cummins 4093941 Starting Motor boasts several notable features that enhance its performance and reliability. Its design incorporates robust construction materials, such as high-grade metals, to withstand the rigors of commercial truck operation. Technological advancements, including improved electrical components and efficient gear systems, contribute to its durability and efficiency. These features ensure that the motor can deliver consistent performance under various operating conditions 3.

Benefits

Utilizing the Cummins 4093941 Starting Motor offers several advantages. It provides improved starting performance, ensuring quick and reliable engine starts. Its durability contributes to reduced maintenance needs and longer service life. Additionally, the motor’s efficiency helps in minimizing electrical draw, which can be particularly beneficial in maintaining battery health and overall vehicle performance.

Installation and Integration

Proper installation and integration of the 4093941 Starting Motor into a truck’s engine system are vital for optimal performance. Guidelines for installation include ensuring proper alignment with the engine’s flywheel or flexplate and securing all mounting bolts to the manufacturer’s specifications. Compatibility with the truck’s electrical system and engine design should be verified to ensure seamless integration.

Troubleshooting and Maintenance

Common issues with the 4093941 Starting Motor may include slow cranking, unusual noises, or failure to engage. Troubleshooting steps involve checking electrical connections, inspecting the motor for signs of wear or damage, and ensuring the battery is in good condition. Regular maintenance practices, such as cleaning the motor and inspecting for corrosion, can help ensure longevity and reliable performance. Service intervals should be followed as per the manufacturer’s recommendations.

Performance in Various Conditions

The Cummins 4093941 Starting Motor is designed to perform reliably under a range of operating conditions. It demonstrates robustness in extreme temperatures, whether hot or cold, and can operate effectively in high-altitude environments. Its design considerations include features that enhance its performance in these diverse scenarios, ensuring that commercial trucks can start reliably regardless of the external conditions.

Compatibility of Cummins Part 4093941 with Various Engine Models

The Cummins part 4093941, a Starting Motor, is designed to be compatible with a range of Cummins engine models. This part is engineered to ensure reliable engine start-up across different engine configurations. Here is a detailed look at its compatibility with specific engine models:

Cummins 4B3.9 and 6B5.9 Engines

The Cummins part 4093941 is compatible with the 4B3.9 and 6B5.9 engines. These engines are known for their robust performance and are widely used in various industrial and commercial applications. The starting motor ensures that these engines can be started efficiently under a variety of conditions.

Cummins B5.9 GAS PLUS CM556 Engine

The B5.9 GAS PLUS CM556 engine benefits from the use of the Cummins part 4093941. This engine is designed for natural gas operation, providing an environmentally friendly alternative to diesel engines. The starting motor ensures that the engine can start reliably, even when operating on natural gas.

Cummins ISB5.9 CM2880 B110 and ISB5.9 CM2880 B140 Engines

The Cummins part 4093941 is also compatible with the ISB5.9 CM2880 B110 and ISB5.9 CM2880 B140 engines. These engines are part of the Cummins ISB series, known for their high performance and durability. The starting motor is designed to handle the demands of these engines, ensuring smooth and reliable start-up in various operational environments.

By ensuring compatibility with these engines, the Cummins part 4093941 provides a reliable solution for starting these engines, contributing to their overall performance and longevity.

Conclusion

The Cummins 4093941 Starting Motor is a vital component in the ignition systems of commercial trucks, designed to ensure reliable and efficient engine starts. Its robust construction, technological advancements, and compatibility with various Cummins engine models make it a valuable asset for commercial truck operations. Proper installation, regular maintenance, and understanding its performance capabilities under different conditions are key to maximizing the benefits of this Cummins part.


  1. Khajepour, A. (2023). Synthesis Lectures on Advances in Automotive Technology. Springer.

  2. Fehan, D. R. (2013). Design of Racing and High-Performance Engines 2004-2013. SAE International.

  3. Pacejka, H. B. (2006). Tyre and Vehicle Dynamics. Butterworth-Heinemann.

SPECIFICATIONS

Package Dimensions
39.0 x 29.0 x 22.0 in
Weight
11.8 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.