3420963
Toggle Switch
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$809.95 $963.84

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 Toggle Switch, Part #3420963, is a component designed for use in commercial trucks. It serves a specific function within the vehicle’s electrical system, facilitating the operation of various systems or components. Manufactured by Cummins, a well-regarded name in the automotive industry, this toggle switch is engineered to meet the demanding requirements of commercial truck applications 1.

Basic Concepts of Toggle Switches

A toggle switch is a type of electrical switch that is actuated by moving a lever back and forth to open (off) or close (on) an electrical circuit. Toggle switches are commonly used in vehicles for their durability and clear on/off indication. They are employed in various applications, including controlling lights, accessories, and other electrical components 2.

Purpose of the 3420963 Toggle Switch in Truck Operation

The 3420963 Toggle Switch plays a role in the operation of a commercial truck by controlling specific systems or components. It is designed to provide a reliable means of activating or deactivating certain functions within the truck’s electrical system. The exact systems or components it controls can vary depending on the truck’s make and model, but it is typically used for functions that require a clear and definitive on/off action 3.

Key Features

The 3420963 Toggle Switch is characterized by several key features that enhance its functionality in a truck environment. These include durability to withstand the rigors of commercial use, a robust design that ensures reliable operation, and unique attributes such as weather resistance and ease of use. These features contribute to the switch’s effectiveness in controlling truck systems.

Benefits of Using the 3420963 Toggle Switch

Utilizing the 3420963 Toggle Switch offers several advantages for truck operators. It provides improved control over the systems it operates, ensuring that functions can be activated or deactivated with precision. The switch’s reliability reduces the likelihood of malfunctions, and its design makes it easy to use, even in challenging conditions. These benefits contribute to a more efficient and safer truck operation.

Installation and Integration

Installing and integrating the 3420963 Toggle Switch into a truck’s electrical system requires careful consideration of the vehicle’s specific electrical layout. It is important to follow manufacturer guidelines to ensure proper installation. This may involve connecting the switch to the appropriate circuits and ensuring it is securely mounted to prevent damage or accidental disconnection. Specific considerations may include the switch’s voltage rating and the amperage of the circuits it will control.

Troubleshooting and Maintenance

To maintain the 3420963 Toggle Switch’s functionality, regular inspection and maintenance are recommended. Troubleshooting common issues may involve checking for loose connections, ensuring the switch is clean and free from debris, and verifying that it operates smoothly. If the switch shows signs of wear or fails to function correctly, it may be necessary to replace it to ensure the continued reliable operation of the controlled systems.

Safety Considerations

When using and maintaining the 3420963 Toggle Switch, it is important to observe safety precautions. This includes ensuring the truck’s electrical system is de-energized during installation or maintenance to prevent electrical shock. Additionally, operators should be aware of the switch’s function and ensure it is used correctly to avoid accidental activation or deactivation of critical systems.

Cummins: Manufacturer Overview

Cummins is a renowned manufacturer in the automotive industry, known for its commitment to quality and innovation. The company has a long-standing reputation for producing reliable and high-performance components for commercial vehicles. Cummins’ dedication to excellence is evident in their product line, which includes a wide range of engines, filtration systems, and electrical components designed to meet the needs of demanding applications 4.

Toggle Switch 3420963 Compatibility with Cummins Engines

The Toggle Switch part number 3420963, manufactured by Cummins, is designed to integrate seamlessly with a range of Cummins engines. This switch is engineered to provide reliable operation and ease of use across various engine models. Below is a detailed overview of its compatibility with the specified engines:

QSV81G and QSV91G Engines

The Toggle Switch 3420963 is compatible with the QSV81G and QSV91G engines. These engines are known for their robust performance and efficiency, making them suitable for heavy-duty applications. The toggle switch ensures that operators can easily control critical functions, enhancing the overall usability and safety of these engines.

QSW/QSV82 Engines

For the QSW/QSV82 engines, the Toggle Switch 3420963 is an ideal fit. This engine model is designed for versatility, often used in both industrial and commercial settings. The toggle switch provides a straightforward method for managing engine operations, ensuring that users can quickly and effectively switch between different modes or functions.

QSW27 and QSW36 Engines

The Toggle Switch 3420963 is also compatible with the QSW27 and QSW36 engines. These engines are typically employed in applications requiring reliable power and durability. The toggle switch’s design allows for easy integration into the engine’s control systems, facilitating smooth transitions between operational states and enhancing the engine’s overall functionality.

QSW73 Engine

Lastly, the Toggle Switch 3420963 is suitable for the QSW73 engine. This engine model is engineered for high-performance applications, often found in demanding environments. The toggle switch ensures that operators can manage engine functions with precision, contributing to the engine’s efficiency and reliability.

By ensuring compatibility with these Cummins engines, the Toggle Switch 3420963 provides a reliable and user-friendly solution for controlling engine operations across various applications.

Role of Part 3420963 Toggle Switch in Engine Systems

The 3420963 Toggle Switch is an essential component in the orchestration of various engine systems, facilitating seamless operation and control.

In the Drive System, the Toggle Switch is responsible for activating and deactivating the drive mechanism. This allows for precise control over the engine’s power transmission, ensuring efficient and reliable performance.

Within the Engine Barring system, the Toggle Switch plays a pivotal role in initiating and halting the barring process. This is particularly important during engine startups and shutdowns, where controlled rotation of the engine is necessary to prevent damage and ensure smooth operation.

In the Engine Barring Assembly Drive, the Toggle Switch coordinates the movement of the barring assembly, ensuring that the engine components are properly aligned and engaged. This is vital for maintaining the integrity of the engine’s internal mechanisms and preventing wear or misalignment.

The Toggle Switch is also integral to the broader System operations, where it interfaces with various subsystems to manage power distribution and operational sequences. This ensures that all components work in harmony, enhancing the overall efficiency and reliability of the engine.

Lastly, in the Engine Monitoring system, the Toggle Switch enables the activation and deactivation of monitoring circuits. This allows for real-time data collection and analysis, providing valuable insights into the engine’s performance and health. By facilitating accurate monitoring, the Toggle Switch contributes to proactive maintenance and troubleshooting, ultimately extending the engine’s lifespan and optimizing its operation.

Conclusion

The 3420963 Toggle Switch by Cummins is a vital component in the electrical systems of commercial trucks, offering reliable control over various engine functions. Its robust design, ease of use, and compatibility with a range of Cummins engines make it an indispensable tool for truck operators. Regular maintenance and adherence to safety guidelines ensure the continued efficiency and safety of the vehicle’s operations.


  1. Sclar, Deanna. Auto Repair for Dummies: 2nd Edition. For Dummies, 2008.

  2. Hu, Haoran, Simon J Baseley, and Xubin Song. Advanced Hybrid Powertrains for Commercial Vehicles Second Edition. SAE International, 2021.

  3. Cummins. Fault Code Troubleshooting Manual. Bulletin Number 5504553, ISM11 CM876 M103.

  4. Cummins. Cummins Company Overview. Available at: Cummins Official Website.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
12.5 x 6.0 x 6.0 in
Weight
0.169 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.