4090582
Air Starting Motor
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$9,299.95 $11,066.94

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 4090582 Air Starting Motor is a specialized component designed for use in heavy-duty trucks. Its purpose is to facilitate the starting of large diesel engines, which can be challenging due to their size and the high compression ratios. This motor is significant in ensuring that trucks can start reliably under various conditions, contributing to the overall efficiency and reliability of heavy-duty truck operations.

Basic Concepts of Air Starting Motors

An air starting motor is a device that uses compressed air to turn over a diesel engine, allowing it to start. Unlike conventional electric starters, air starting motors provide a more powerful and consistent starting force, which is particularly beneficial for large engines. These motors play a role in the engine starting system by ensuring that the engine can be started quickly and reliably, even in cold weather or after long periods of inactivity 1.

Purpose of the Cummins 4090582 Air Starting Motor

The Cummins 4090582 Air Starting Motor is designed to aid in the starting of heavy-duty truck engines. It operates by using compressed air to turn the engine’s crankshaft, overcoming the high compression ratios that are typical in diesel engines. This motor ensures that the engine can start smoothly and efficiently, reducing the strain on the battery and electrical system. It is particularly useful in environments where electric starters may struggle, such as in cold climates or when the battery is weak.

Key Features

The Cummins 4090582 Air Starting Motor features a robust design that includes high-quality construction materials to ensure durability and reliability. It is built to withstand the harsh conditions often encountered in heavy-duty truck applications. The motor incorporates advanced technological aspects, such as precision engineering and efficient air flow management, to enhance its performance. These features contribute to its reliability and effectiveness in starting large diesel engines.

Benefits

The Cummins 4090582 Air Starting Motor offers several benefits in heavy-duty truck applications. It provides improved starting performance, ensuring that engines can start quickly and reliably under various conditions. The motor enhances the reliability of the starting process, reducing the likelihood of starting failures. Additionally, it contributes to the overall efficiency of the truck by ensuring that the engine can start with minimal strain on the electrical system.

Installation and Integration

When installing the Cummins 4090582 Air Starting Motor, it is important to consider compatibility with the specific engine type and integration with existing systems. Proper installation involves ensuring that the motor is correctly aligned and securely mounted. It should be connected to the truck’s air supply system, and any necessary electrical connections should be made. Following manufacturer guidelines ensures that the motor functions correctly and integrates seamlessly with the truck’s starting system.

Troubleshooting Common Issues

Common issues with the Cummins 4090582 Air Starting Motor may include difficulty starting the engine, unusual noises during operation, or leaks in the air supply system. Troubleshooting steps may involve checking the air supply pressure, inspecting the motor for signs of wear or damage, and ensuring that all connections are secure. Regular maintenance and prompt attention to any issues can help prevent more serious problems and ensure the motor continues to function effectively.

Maintenance Tips

Regular maintenance is key to ensuring the longevity and optimal performance of the Cummins 4090582 Air Starting Motor. Maintenance practices should include periodic inspection for signs of wear or damage, cleaning the motor to remove any debris, and checking the air supply system for leaks. Following the manufacturer’s recommended maintenance schedule for part replacement, such as seals and gaskets, can help prevent failures and extend the motor’s lifespan.

Performance in Various Conditions

The Cummins 4090582 Air Starting Motor is designed to perform reliably under a range of environmental and operational conditions. It can handle extreme temperatures, both hot and cold, without significant loss of performance. In high-altitude operations, where air density is lower, the motor is engineered to maintain efficient starting capabilities. Its robust design and advanced features ensure that it can operate effectively in the demanding conditions often encountered in heavy-duty truck applications.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a strong reputation for quality, innovation, and reliability in the automotive and heavy-duty truck industry. The company’s extensive product range and commitment to customer satisfaction have made it a trusted name among professionals in the field.

Cummins Air Starting Motor 4090582 Compatibility

The Cummins Air Starting Motor part number 4090582 is designed to be compatible with a range of Cummins engines, ensuring reliable and efficient starting performance. This air starting motor is engineered to provide robust power to initiate engine operation, making it an essential component for various engine models.

G855 Engines

The G855 engine series benefits from the use of the Cummins Air Starting Motor 4090582. This part is specifically tailored to fit seamlessly within the engine architecture of the G855, ensuring optimal performance and durability. The integration of this air starting motor with the G855 engine enhances the starting process, providing a dependable solution for engine ignition.

KTA19GC Engines

Similarly, the KTA19GC engine series is another beneficiary of the Cummins Air Starting Motor 4090582. This part is designed to integrate smoothly with the KTA19GC engine, offering reliable starting capabilities. The compatibility of this air starting motor with the KTA19GC engine ensures that the engine can be started efficiently, even in challenging conditions.

Grouping Compatibility

The Cummins Air Starting Motor 4090582 is engineered to fit within the G855 and KTA19GC engine series, making it a versatile component for these engines. Its design and specifications are tailored to meet the specific requirements of these engine models, ensuring a perfect fit and reliable performance. This compatibility allows for easier maintenance and replacement, as the same part can be used across multiple engine types within these series.

Role of Part 4090582 Air Starting Motor in Engine Systems

The part 4090582 Air Starting Motor is an integral component in various engine systems, particularly in marine and industrial applications where air start systems are prevalent. This motor is designed to convert pneumatic energy into mechanical energy, facilitating the initial rotation of the engine’s crankshaft.

When integrated into an engine system, the Air Starting Motor works in conjunction with several key components:

  • Crankshaft: The Air Starting Motor directly engages with the crankshaft, providing the necessary torque to initiate engine rotation. This interaction is essential for overcoming the inertia of the engine’s components.

  • Air Supply System: The motor relies on a consistent and pressurized air supply, typically provided by compressed air tanks or an air compressor. This system ensures that the motor receives the pneumatic energy required for operation.

  • Valve Mechanism: The operation of the Air Starting Motor is controlled by a series of valves that regulate the flow of air into the motor. These valves are synchronized with the engine’s starting sequence to ensure smooth and efficient starting.

  • Control System: Modern engine systems often incorporate electronic control units (ECUs) that monitor and regulate the starting process. The Air Starting Motor interfaces with these control systems to receive signals for activation and deactivation.

  • Flywheel: Once the crankshaft is set in motion by the Air Starting Motor, the flywheel plays a role in maintaining rotational momentum. This helps in transitioning the engine from the starting phase to the running phase.

  • Fuel Injection System: As the engine reaches operating speed, the fuel injection system begins to deliver fuel into the combustion chambers. The Air Starting Motor ensures that the engine reaches this point efficiently.

In summary, the part 4090582 Air Starting Motor is a vital element in the starting sequence of engine systems, working seamlessly with other components to ensure a reliable and efficient start.

Conclusion

The Cummins 4090582 Air Starting Motor is a critical component for heavy-duty truck engines, providing reliable and efficient starting capabilities under various conditions. Its robust design, compatibility with specific engine models, and integration with key engine components make it an essential part of the engine starting system. Regular maintenance and proper installation are key to ensuring its optimal performance and longevity.


  1. Hiereth, H., Prenninger, P., & Drexl, K. W. (2010). Charging the Internal Combustion Engine. Springer.

SPECIFICATIONS

Package Dimensions
24.3 x 9.0 x 8.13 in
Weight
39 lb
* 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.