4349631
Magnetic Switch
Cummins®

AVAILABLE

Cummins®

10 are currently available

Ships within 2-4 business days

$1,799.95 $2,141.94

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 4349631 Magnetic Switch is a component designed for use in commercial truck operations. It serves a specific function within the truck’s electrical system, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and significance can help in maintaining and optimizing truck performance.

Basic Concepts of Magnetic Switches

A magnetic switch, also known as a magnetic reed switch, is an electrical switch operated by a magnetic field. It consists of a pair of ferromagnetic flexible metal contacts in a glass tube which are kept closed (touching) by a spring. When a sufficiently strong magnetic field is applied, it magnetizes the metal contacts, causing them to attract each other and separate, thus opening the electrical circuit. Magnetic switches are commonly used in various automotive systems for their reliability and simplicity 1.

Purpose of the Cummins 4349631 Magnetic Switch

The Cummins 4349631 Magnetic Switch plays a role in the truck’s electrical system by controlling the activation and deactivation of certain electrical components. It is designed to respond to magnetic fields generated by other components or systems within the truck, allowing for automated control of electrical circuits. This switch ensures that electrical components operate only when needed, contributing to fuel efficiency and reducing unnecessary wear on the system 2.

Key Features

The Cummins 4349631 Magnetic Switch is characterized by its robust design and the use of high-quality materials. It is constructed to withstand the harsh conditions typical of commercial truck operations. The switch features a sealed enclosure to protect against moisture and contaminants, enhancing its durability. Additionally, its design allows for easy integration into existing electrical systems, facilitating straightforward installation and maintenance.

Benefits

The use of the Cummins 4349631 Magnetic Switch offers several advantages. It contributes to improved efficiency by ensuring that electrical components are activated only when necessary. This can lead to fuel savings and reduced wear on the electrical system. The switch’s reliability and durability also mean less frequent replacements and maintenance, contributing to lower overall operational costs 3.

Installation and Integration

Installing the Cummins 4349631 Magnetic Switch involves connecting it to the appropriate points within the truck’s electrical system. It is important to follow the manufacturer’s guidelines to ensure proper integration. This may include disconnecting the battery to prevent electrical shocks and ensuring that all connections are secure and correctly aligned. Special considerations may include checking for compatibility with the truck’s existing electrical components and systems.

Troubleshooting Common Issues

Common issues with the Cummins 4349631 Magnetic Switch may include failure to activate or deactivate electrical components as expected. Diagnostic steps may involve checking for proper installation, ensuring that all connections are secure, and verifying that the switch is receiving the correct magnetic signals. Solutions may range from re-securing connections to replacing the switch if it is found to be faulty.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins 4349631 Magnetic Switch, regular maintenance is recommended. This includes checking for signs of wear or damage, ensuring that connections remain secure, and protecting the switch from moisture and contaminants. Regular inspections can help identify potential issues before they lead to more significant problems.

Safety Considerations

When working with the Cummins 4349631 Magnetic Switch, it is important to follow safety practices. This includes disconnecting the battery before beginning any work to prevent electrical shocks. Additionally, handling the switch with care to avoid damage and following proper procedures for installation and maintenance can help ensure safety and effectiveness.

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 commitment to quality, Cummins plays a significant role in the commercial truck industry. The company’s products are known for their reliability, efficiency, and durability, contributing to the success and performance of commercial vehicles worldwide.

Role of Part 4349631 Magnetic Switch in Engine Systems

The Cummins 4349631 Magnetic Switch is an integral component in the orchestration of various engine systems, ensuring seamless operation and efficiency.

In the context of accessories, the magnetic switch facilitates the activation and deactivation of auxiliary systems connected to the engine. This includes components like lights, heating elements, and other peripheral devices that enhance the functionality and user experience of the engine system.

For the electric starting system, the magnetic switch acts as a mediator between the battery and the starter motor. When engaged, it allows a controlled flow of electrical current to the starter motor, initiating the engine’s cranking process. This ensures that the engine starts smoothly and efficiently, without unnecessary strain on the electrical system.

In relation to the primer system, the magnetic switch plays a role in the activation sequence. It ensures that the primer, which prepares the fuel system for ignition, is engaged at the appropriate time. This is particularly important in engines that require a specific priming procedure before starting, ensuring optimal fuel delivery and engine performance.

Lastly, concerning the engine lubricating system, the magnetic switch can be part of the control mechanism that activates the oil pump. By ensuring the oil pump is operational before the engine starts, it guarantees that the engine components are adequately lubricated from the onset, promoting longevity and reducing wear and tear.

In summary, the Cummins 4349631 Magnetic Switch is a versatile component that enhances the functionality and efficiency of various engine systems, ensuring a harmonious operation of the engine as a whole.

Conclusion

The Cummins 4349631 Magnetic Switch is a vital component in commercial truck operations, contributing to the efficiency and reliability of the vehicle’s electrical system. Its robust design, ease of integration, and the benefits it offers in terms of fuel efficiency and reduced maintenance make it a valuable asset for truck operators. Regular maintenance and adherence to safety practices are essential for ensuring the longevity and optimal performance of this Cummins part.


  1. Carroll, Douglas R. Energy Efficiency of Vehicles. SAE International, 2020.

  2. Maclaurin, Bruce. High Speed Off-Road Vehicles. Wiley, 2018.

  3. Han, Zhiyu. Simulation and Optimization of Internal Combustion Engines. SAE International, 2022.

SPECIFICATIONS

Package Dimensions
6.75 x 4.75 x 4.0 in
Weight
2.45 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.