4951864
Magnetic Switch
Cummins®

The 4951864 Magnetic Control Switch, manufactured by Cummins, is a component designed for use in commercial truck operations. Cummins, a well-established name in the industry, produces a range of parts and systems aimed at enhancing the performance and reliability of heavy-duty trucks. This Cummins part is part of this lineup, contributing to the efficient operation of truck electrical systems.

Basic Concepts of Magnetic Control Switch

A Magnetic Control Switch is a device that uses magnetic fields to control the flow of electricity within a circuit. It operates by utilizing an electromagnet to either open or close a circuit, thereby regulating the electrical current. This type of switch is commonly used in automotive systems for its reliability and efficiency in managing electrical loads ¹.

Purpose of the 4951864 Magnetic Control Switch

The 4951864 Magnetic Control Switch plays a role in the operation of a truck by managing the electrical circuits that power various components. It ensures that the electrical current is distributed efficiently and safely throughout the truck’s systems. Within the electrical system, this switch helps in activating or deactivating circuits as needed, contributing to the overall functionality and safety of the vehicle ².

Key Features

The 4951864 Magnetic Control Switch is characterized by several key features. Its design incorporates high-quality materials that ensure durability and resistance to the harsh conditions often encountered in commercial truck operations. The switch is engineered to provide precise control over electrical circuits, with a robust construction that includes corrosion-resistant components. Additionally, it features a compact design that allows for easy integration into existing truck electrical systems ³.

Benefits

The 4951864 Magnetic Control Switch offers several benefits. It enhances the efficiency of the truck’s electrical system by providing reliable control over circuit activation and deactivation. This results in improved performance and reduced strain on the electrical components. The switch also contributes to the overall reliability of the truck, ensuring that electrical systems operate smoothly under various conditions.

Installation Process

Installing the 4951864 Magnetic Control Switch requires careful attention to detail. The process involves disconnecting the battery to ensure safety, locating the appropriate circuit within the truck’s electrical system, and connecting the switch according to the manufacturer’s instructions. Tools required may include wire cutters, strippers, and a multimeter to verify connections. It is important to follow the installation steps precisely to ensure the switch functions correctly within the system.

Troubleshooting

Common issues with the 4951864 Magnetic Control Switch may include failure to activate circuits or intermittent operation. Troubleshooting steps involve checking the electrical connections for corrosion or damage, verifying the switch is receiving power, and testing the switch’s operation with a multimeter. If the switch is found to be faulty, replacement may be necessary.

Maintenance Tips

To ensure the longevity and optimal performance of the 4951864 Magnetic Control Switch, regular maintenance is recommended. This includes inspecting the switch and its connections for signs of wear or corrosion, ensuring that all connections are secure, and cleaning the switch as needed to remove any dirt or debris that could affect its operation.

Safety Considerations

When working with the 4951864 Magnetic Control Switch, it is important to observe several safety guidelines. Always disconnect the battery before beginning any work on the electrical system to prevent accidental activation of circuits. Use appropriate personal protective equipment, such as gloves and safety glasses, to protect against electrical shocks or injuries from sharp edges.

Cummins Overview

Cummins is a leading manufacturer in the commercial truck industry, known for its wide range of engines, components, and systems. With a history of innovation and quality, Cummins has established a strong reputation for producing reliable and efficient products that meet the demanding requirements of heavy-duty truck operations. The company’s commitment to excellence is reflected in its extensive product lineup, which includes engines, powertrain components, and aftermarket parts designed to enhance the performance and longevity of commercial vehicles.

Magnetic Control Switch 4951864 Compatibility with Cummins Engines

The Magnetic Control Switch (MCS) part number 4951864, manufactured by Cummins, is a critical component in the operation of several Cummins engine models. This switch plays a pivotal role in the engine’s ignition system by controlling the timing of the spark in the engine’s cylinders. Below is a detailed description of the compatibility of this part with various Cummins engines:

K-Series Engines

• K38
• K50

The K-Series engines, including the K38 and K50, are designed for heavy-duty applications and are known for their robust performance and reliability. The Magnetic Control Switch 4951864 is compatible with these engines, ensuring precise ignition timing and optimal engine performance.

QSK Engines

• QSK38 CM2150 MCRS
• QSK38 CM850 MCRS
• QSK45 CM500
• QSK50 CM2150 MCRS
• QSK50 CM2350 K108
• QSK60 CM500
• QSK60 CM850 MCRS
• QSK78 CM500
• QSK95 CM2350 K111
• QSK95 CM2350 K113

The QSK engines, ranging from QSK38 to QSK95, are part of Cummins’ high-performance line, designed for various industrial and power generation applications. The Magnetic Control Switch 4951864 is engineered to fit seamlessly with these engines, providing the necessary control over the ignition system to ensure efficient and reliable operation.

QST Engines

• QST30 CM2350 T101
• QST30 CM552

The QST engines, such as the QST30 CM2350 T101 and QST30 CM552, are tailored for specific applications requiring high power and durability. The Magnetic Control Switch 4951864 is compatible with these engines, ensuring that the ignition timing is accurately managed, which is crucial for maintaining engine performance and longevity.

By ensuring that the Magnetic Control Switch 4951864 is correctly installed and functioning, engine operators can maintain optimal performance and reliability across these various Cummins engine models.

Role of Part 4951864 Magnetic Control Switch in Engine Systems

The Part 4951864 Magnetic Control Switch is an integral component within various engine systems, facilitating efficient operation and control.

In electrical set accessories, the Magnetic Control Switch ensures precise regulation of electrical currents, enhancing the performance and reliability of the accessories. It acts as a mediator between the power source and the accessories, optimizing energy distribution.

When integrated with the motor, the switch plays a significant role in managing the motor’s operational cycles. It enables smooth starts and stops, reducing wear and tear on the motor components. This results in prolonged motor life and consistent performance.

In starting systems, the Magnetic Control Switch is responsible for initiating the engine start sequence. It coordinates the flow of electricity to the starter motor, ensuring that the engine cranks efficiently and reliably. This is particularly important in ensuring quick and trouble-free engine startups.

For plumbing systems within the engine, the switch helps in controlling the flow of fluids, such as coolant or lubricants. It ensures that these fluids are delivered at the right times and in the correct quantities, maintaining optimal engine temperature and lubrication.

The engine oil primer benefits from the Magnetic Control Switch by ensuring that the oil is adequately circulated before the engine starts. This pre-lubrication step is vital for protecting engine components from damage during startup.

Similarly, in primer systems, the switch ensures that the fuel primer operates correctly, delivering the right amount of fuel to the engine. This is essential for achieving the correct fuel-air mixture, which is crucial for efficient combustion.

Lastly, in engine lubricating systems, the Magnetic Control Switch helps maintain consistent lubrication by regulating the oil pump’s operation. This ensures that all moving parts within the engine receive continuous lubrication, reducing friction and enhancing overall engine efficiency.

Conclusion

The 4951864 Magnetic Control Switch is a vital component in the operation of Cummins engines, ensuring efficient and reliable performance across various engine systems. Its role in managing electrical currents, motor operations, starting systems, plumbing systems, engine oil primer, primer systems, and engine lubricating systems underscores its importance in maintaining optimal engine functionality. Regular maintenance and proper installation are key to ensuring the longevity and effectiveness of this Cummins part.