4952631
Thermostat
Cummins®

Introduction

The Cummins 4952631 Thermostat is a component designed for use in the engine systems of commercial trucks. Its primary role is to regulate the engine’s temperature, ensuring it operates within a specified range for optimal performance and longevity. This thermostat is engineered to meet the demanding requirements of heavy-duty applications, providing reliable temperature control under various operating conditions ¹.

Basic Concepts of a Thermostat

A thermostat is a device that senses the temperature of a system and controls the flow of heat to maintain the system at or near a desired setpoint. In an engine system, the thermostat plays a role in regulating the engine’s temperature by controlling the flow of coolant between the engine and the radiator. When the engine is cold, the thermostat remains closed, preventing coolant flow and allowing the engine to warm up quickly. Once the engine reaches the optimal operating temperature, the thermostat opens, allowing coolant to circulate and maintain a stable temperature ².

Purpose of the Cummins 4952631 Thermostat

The Cummins 4952631 Thermostat is specifically designed to regulate the temperature of commercial truck engines. By controlling the flow of coolant, it ensures that the engine operates within its optimal temperature range, which is crucial for efficient combustion, reduced emissions, and prolonged engine life. This thermostat is tailored to handle the rigors of heavy-duty use, providing consistent performance in various operating conditions ³.

Key Features

The Cummins 4952631 Thermostat features a robust design that includes high-quality materials to ensure durability and reliability. It is constructed with a housing made from heat-resistant materials and a precision-machined wax pellet that expands and contracts with temperature changes to control the valve opening. Additionally, the thermostat incorporates a seal made from durable elastomers to prevent coolant leaks and ensure a tight seal under pressure ⁴.

Benefits

Using the Cummins 4952631 Thermostat offers several benefits. It contributes to improved engine efficiency by ensuring the engine operates at its optimal temperature, which enhances fuel economy and reduces emissions. The thermostat’s durable construction and reliable performance contribute to the longevity and reliability of the engine, reducing the need for frequent replacements and maintenance. Additionally, maintaining the engine at the correct temperature helps prevent overheating, which can lead to engine damage ⁵.

Installation and Compatibility

Proper installation of the Cummins 4952631 Thermostat is crucial for ensuring its effective operation. It should be installed according to the manufacturer’s guidelines, which may include specific torque specifications for the housing bolts and ensuring the thermostat is oriented correctly within the engine system. Compatibility with various truck models should be verified to ensure optimal performance and integration within the engine system ⁶.

Maintenance and Troubleshooting

Routine maintenance of the Cummins 4952631 Thermostat involves periodic inspection for signs of wear or damage, such as leaks or corrosion. It is also important to ensure the thermostat is functioning correctly by monitoring the engine’s temperature gauge and ensuring it remains within the normal operating range. Common troubleshooting tips include checking for proper installation, ensuring the coolant system is free of debris, and verifying that the thermostat is not stuck in the open or closed position ⁷.

Performance in Various Conditions

The Cummins 4952631 Thermostat is designed to perform effectively under a range of operating conditions, including extreme temperatures and heavy-duty use. Its robust construction and precise engineering allow it to maintain consistent performance, ensuring the engine remains at the optimal operating temperature regardless of external conditions. Considerations for optimal performance include ensuring the coolant system is in good condition and that the thermostat is compatible with the specific engine model ⁸.

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 a strong reputation in the industry, Cummins is committed to producing high-quality automotive components that meet the demanding requirements of commercial and industrial applications. The company’s dedication to quality and performance is evident in its wide range of products, including the Cummins 4952631 Thermostat ⁹.

Compatibility with Cummins Engines

This part is designed to fit a variety of Cummins engines. Below is a detailed breakdown of the engines that are compatible with this thermostat:

G855 Engine

The G855 engine benefits from the precise temperature control provided by the thermostat 4952631, ensuring efficient operation and longevity.

ISX12 G CM2180 EJ

This engine model is another beneficiary of the thermostat 4952631. Its compatibility ensures that the ISX12 G CM2180 EJ operates within its optimal temperature range, enhancing performance and reliability.

ISX15 CM2250 SN

The ISX15 CM2250 SN engine is designed to work seamlessly with the thermostat 4952631. This compatibility is crucial for maintaining the engine’s efficiency and preventing overheating or undercooling.

QSM11 CM570

The QSM11 CM570 engine also integrates well with the thermostat 4952631. This ensures that the engine maintains its ideal operating temperature, contributing to its overall performance and durability.

QSX15 CM2250 and QSX15 CM2250 ECF

Both the QSX15 CM2250 and QSX15 CM2250 ECF engines are compatible with the thermostat 4952631. This compatibility is vital for these engines to function optimally, ensuring that they run smoothly and efficiently.

QSX15 CM2350 X105

The QSX15 CM2350 X105 engine is another model that benefits from the thermostat 4952631. Its compatibility with this thermostat ensures that the engine maintains the correct temperature, which is essential for its performance and longevity.

By ensuring that the thermostat 4952631 is used with the appropriate engines, users can maintain the optimal operating conditions for their Cummins engines, leading to improved performance and reliability ¹⁰.

Role of Part 4952631 Thermostat in Engine Systems

This part is an essential component in maintaining the optimal operating temperature of the engine. It works in conjunction with various engine systems to ensure efficient performance and longevity of the engine components.

Interaction with the Cooler and Lubricating Oil Cooler

The thermostat regulates the flow of coolant to the cooler and lubricating oil cooler. By controlling the temperature at which the coolant is allowed to flow through these coolers, the thermostat ensures that the engine oil and lubricating oil remain at an optimal temperature. This is vital for the efficient operation of the cooler and lubricating oil cooler, as it prevents overheating and ensures that the oil maintains its viscosity and lubricating properties.

Coordination with the Engine Oil and Oil Filter Cooler

In systems where the engine oil and oil filter cooler are present, the thermostat plays a role in maintaining the correct temperature for the engine oil. By managing the coolant flow, the thermostat helps in dissipating excess heat from the engine oil, which is critical for the oil’s performance and the overall efficiency of the engine oil and oil filter cooler.

Integration with the Head and Lubricating Oil Filter Head

The thermostat also interacts with the head and lubricating oil filter head. It ensures that the temperature of the coolant reaching these components is within the desired range. This is important for the proper functioning of the head, as it houses critical engine components, and for the lubricating oil filter head, which filters the lubricating oil to remove contaminants.

Function in the Oil Filter Cooler Head

Lastly, the thermostat’s role extends to the oil filter cooler head. By regulating the coolant temperature, it assists in cooling the oil effectively before it is filtered. This ensures that the oil filter cooler head operates efficiently, contributing to the overall performance and reliability of the engine system ¹¹.

Conclusion

The Cummins 4952631 Thermostat is a critical component in maintaining the optimal operating temperature of commercial truck engines. Its robust design, precise engineering, and compatibility with various Cummins engines make it an essential part for ensuring efficient performance and longevity of the engine. Proper installation, maintenance, and understanding of its role within the engine system are crucial for maximizing the benefits of this thermostat.