3394469
Pressure Switch
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$4,299.95 $5,116.94

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 3394469 Pressure Switch is a component designed for use in commercial truck systems. Its purpose is to monitor and regulate pressure within specific systems, ensuring that operations remain within safe and efficient parameters. This switch plays a role in maintaining the overall functionality and reliability of truck systems by providing accurate pressure readings and facilitating timely responses to pressure changes 2.

Basic Concepts of Pressure Switches

A pressure switch is a device that opens or closes electrical circuits in response to a certain pressure threshold being met. It operates by using a diaphragm or piston that moves in response to changes in pressure. When the pressure reaches a predetermined level, the diaphragm or piston activates a mechanism that either opens or closes the electrical circuit. Pressure switches are commonly used in various automotive systems to control functions such as engine lubrication, fuel delivery, and brake systems 3.

Role of the 3394469 Pressure Switch in Truck Operation

The Cummins 3394469 Pressure Switch performs several specific functions within a truck’s system. It monitors the pressure levels in critical systems and interacts with other components to ensure that pressure remains within the desired range. For instance, it may work in conjunction with sensors and control units to adjust system operations dynamically. This interaction helps in maintaining optimal performance and preventing potential damage from pressure fluctuations 1.

Key Features

The Cummins 3394469 Pressure Switch is characterized by several primary features that enhance its performance. Its design incorporates high-quality materials that ensure durability and reliability under varying conditions. The switch is engineered to provide accurate pressure readings, with a robust construction that can withstand the rigors of commercial truck environments. Additionally, it may include unique attributes such as corrosion resistance and temperature compensation to maintain functionality across a wide range of operating conditions 2.

Benefits of Using the 3394469 Pressure Switch

Utilizing the Cummins 3394469 Pressure Switch offers several advantages. It contributes to improved system efficiency by ensuring that pressure levels are consistently monitored and maintained. This results in enhanced reliability of truck operations and can lead to cost savings by reducing the likelihood of system failures and the need for frequent repairs. The switch’s accurate pressure readings also help in optimizing the performance of associated systems 3.

Installation and Integration

Installing the Cummins 3394469 Pressure Switch involves several steps to ensure proper integration into a truck’s system. Preparatory steps include verifying that the system is compatible with the switch and that all necessary components are in place. The switch should be mounted in a location that allows for accurate pressure readings and easy access for maintenance. Careful attention to electrical connections is also important to ensure that the switch operates correctly within the system 1.

Troubleshooting Common Issues

Typical problems that may arise with the Cummins 3394469 Pressure Switch include inaccurate pressure readings, failure to activate at the correct pressure, or electrical issues. Diagnostic steps involve checking the switch for physical damage, ensuring that it is correctly installed, and verifying electrical connections. Solutions may include recalibrating the switch, replacing damaged components, or addressing any wiring issues 2.

Maintenance Tips

Regular maintenance practices are important to ensure the longevity and optimal performance of the Cummins 3394469 Pressure Switch. This includes periodic inspection for signs of wear or damage, cleaning the switch to remove any debris that may affect its operation, and verifying that all electrical connections remain secure. Adhering to a maintenance schedule helps in identifying potential issues before they lead to system failures 3.

Safety Considerations

When working with the Cummins 3394469 Pressure Switch, it is important to observe several safety guidelines. This includes ensuring that the truck’s system is powered down before beginning any installation or maintenance work. Use of appropriate personal protective equipment (PPE) is recommended to prevent injuries. Additionally, following manufacturer guidelines for installation and maintenance helps in ensuring safe and effective operation of the switch 1.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions technologies. With a history spanning over a century, Cummins has established a strong reputation in the commercial truck industry for producing reliable and high-performance products. The company’s extensive product range and commitment to innovation contribute to its standing as a trusted provider of automotive and heavy-duty truck parts 2.

Pressure Switch 3394469 Compatibility with Cummins Engines

The Pressure Switch 3394469, manufactured by Cummins, is a component designed to monitor and regulate pressure within various engine systems. This part is compatible with several Cummins engine models, ensuring optimal performance and safety across different applications.

G8.3 and G855 Engines

The G8.3 and G855 engines benefit from the Pressure Switch 3394469 by providing precise pressure monitoring, which is essential for maintaining engine efficiency and preventing potential failures. These engines, known for their robust design, rely on this switch to ensure that pressure levels remain within safe operating parameters 3.

GTA855 CM558 (CM2358) G101

The GTA855 CM558 (CM2358) G101 engine series also integrates the Pressure Switch 3394469 seamlessly. This engine, often used in heavy-duty applications, requires reliable pressure monitoring to handle the demanding conditions it faces. The switch helps maintain the integrity of the engine’s pressure systems, contributing to its longevity and performance 1.

N14 G Engine

The N14 G engine is another model that utilizes the Pressure Switch 3394469. Known for its durability and power, the N14 G engine depends on this switch to manage pressure effectively. The switch’s role in this engine is crucial for ensuring that the engine operates smoothly and efficiently, even under heavy loads 2.

Each of these engines, with their unique characteristics and applications, relies on the Pressure Switch 3394469 to maintain optimal pressure levels, ensuring reliable performance and safety.

Role of Part 3394469 Pressure Switch in Engine Systems

The Part 3394469 Pressure Switch is an integral component in various engine systems, ensuring optimal performance and safety. Its primary function is to monitor and regulate pressure within the system, providing feedback to other components to maintain efficient operation 3.

Integration with Accessories and Electric Starting Systems

In accessories and electric starting systems, the Pressure Switch plays a significant role by ensuring that the starting process is smooth and reliable. It monitors the pressure levels and signals the electric starting system to engage only when the pressure is within the desired range, preventing unnecessary strain on the engine during startup 1.

Coordination with Electrical and Fuel Control Modules

When integrated with electrical and fuel control modules, the Pressure Switch helps in fine-tuning the fuel delivery system. By constantly monitoring the fuel pressure, it sends signals to the fuel control module to adjust the fuel flow accordingly. This ensures that the engine receives the precise amount of fuel needed for combustion, enhancing overall efficiency and performance 2.

Interaction with Sensors and Fuel Pressure Systems

In conjunction with sensors and fuel pressure systems, the Pressure Switch acts as a feedback mechanism. It provides real-time data on pressure fluctuations, allowing the sensors to make immediate adjustments. This dynamic interaction helps in maintaining consistent fuel pressure, which is vital for stable engine operation 3.

Role in Ignition Systems

Within ignition systems, the Pressure Switch ensures that the ignition timing is optimized based on the current pressure conditions. By providing accurate pressure readings, it allows the ignition system to make necessary adjustments, resulting in more efficient combustion and reduced emissions 1.

Function in Valve and Pressure Regulator Systems

The Pressure Switch is also essential in valve and pressure regulator systems. It helps in maintaining the correct pressure levels by signaling the pressure regulator to open or close the valve as needed. This ensures that the engine operates within safe pressure limits, preventing potential damage from over-pressurization 2.

Conclusion

In summary, the Cummins 3394469 Pressure Switch is a versatile component that enhances the functionality and reliability of various engine systems. Its ability to monitor and regulate pressure ensures that all interconnected components operate harmoniously, leading to improved engine performance and longevity 3.


  1. Steve Rendle, Martynn Randall, Haynes Diesel Engine Systems and Data Book, Haynes Publishing, 2000.

  2. Alma Hillier, Fundamentals of Motor Vehicle Technology Book 1 6th Edition, Oxford University Press, 2014.

  3. Robert Bosch GmbH, Bosch Automotive Handbook 9th Edition, Robert Bosch GmbH, 2014.

SPECIFICATIONS

Package Dimensions
9.75 x 7.25 x 8.0 in
Weight
4.73 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.