3076489
Thermostat
Cummins®

The Cummins Part #3076489 Thermostat is a component designed for use in commercial trucks. Its purpose is to regulate the engine’s temperature, ensuring optimal performance and efficiency. This thermostat is significant in the operation of commercial trucks as it helps maintain the engine within its ideal temperature range, which is crucial for engine longevity and fuel efficiency ¹.

Basic Concepts of a Thermostat

A thermostat is a device that senses the temperature of a system and performs actions to maintain the temperature within a set range. In an engine system, the thermostat monitors the coolant temperature. When the engine is cold, the thermostat remains closed, preventing coolant flow through the radiator. As the engine warms up, the thermostat opens, allowing coolant to circulate and regulate the engine temperature. This process ensures the engine operates efficiently and reduces wear ².

Role of the 3076489 Thermostat in Truck Operation

The 3076489 Thermostat plays a specific role in the engine system of a truck by regulating the flow of coolant based on the engine’s temperature. It opens and closes at precise temperatures to maintain optimal engine temperature, which is vital for efficient combustion, reduced emissions, and prolonged engine life. By ensuring the engine operates within its ideal temperature range, the thermostat contributes to overall truck performance and reliability ³.

Key Features of the 3076489 Thermostat

The 3076489 Thermostat is characterized by its robust design and high-quality materials. It is constructed to withstand the demanding conditions of commercial truck engines. Key features include a durable housing, a precise wax pellet and spring mechanism for accurate temperature control, and corrosion-resistant materials to ensure longevity. These attributes enhance the thermostat’s performance and durability in various operating environments ⁴.

Benefits of Using the 3076489 Thermostat

Utilizing the 3076489 Thermostat offers several advantages. It contributes to improved engine efficiency by ensuring the engine operates at optimal temperatures, which can lead to better fuel economy. The thermostat’s durable construction and precise temperature control enhance engine longevity and reliability, even under heavy-duty use. Additionally, its design helps reduce emissions by promoting efficient engine operation ².

Installation and Compatibility

Proper installation of the 3076489 Thermostat is crucial for ensuring its effectiveness and compatibility with the truck’s engine system. Installation guidelines typically include ensuring the thermostat is correctly oriented, securing it in place with the appropriate hardware, and verifying there are no obstructions to coolant flow. Compatibility with different truck models may vary, so it is important to consult the manufacturer’s specifications to ensure the thermostat is suitable for the specific application ³.

Maintenance and Troubleshooting

Regular maintenance practices are recommended to ensure the longevity and efficiency of the 3076489 Thermostat. This includes periodic inspection for signs of wear or damage, ensuring the thermostat housing is secure, and checking for proper coolant levels. Common troubleshooting tips for addressing potential issues with the thermostat involve verifying its operation by checking for consistent engine temperature and ensuring there are no leaks in the coolant system ⁴.

Performance in Various Conditions

The 3076489 Thermostat is designed to perform effectively under a range of operating conditions, including extreme temperatures and heavy-duty use. Its robust construction and precise temperature control mechanism allow it to maintain optimal engine temperature, even in challenging environments. Considerations for optimal performance include ensuring the thermostat is correctly installed and maintained, and that the engine’s cooling system is in good condition ¹.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a history of innovation and a commitment to quality, Cummins has established a strong reputation in the commercial truck industry. The company’s product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of commercial applications. Cummins’ dedication to quality and innovation is evident in its extensive product offerings and its focus on customer satisfaction ³.

Thermostat 3076489 Compatibility with Cummins Engines

The thermostat part number 3076489, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is essential for maintaining the optimal operating temperature of the engine by regulating the flow of coolant. Here is a detailed overview of the engines with which this thermostat is compatible:

Medium Duty Engines

• G855
• ISM CM570
• ISX CM570
• ISX CM870
• K19
• K38
• K50
• KTA19GC
• KTA19GC CM558
• L10 CELECT
• L10 GAS
• L10 MECHANICAL
• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL
• N14 CELECT PLUS
• N14 MECHANICAL
• QSK19 CM2350 K105
• QSK19 CM2350 K114
• QSK19 CM2350 K144G
• QSK19 CM500
• QSK19 CM850 MCRS
• QSK19G
• QSM11 CM570

Heavy Duty Engines

• NH/NT 855

The thermostat 3076489 is engineered to provide reliable temperature control across these diverse engine models. Its compatibility with both medium and heavy-duty engines highlights its versatility and robustness in various operational conditions ³.

Role of Part 3076489 Thermostat in Engine Systems

The part 3076489 thermostat is an integral component within various engine systems, facilitating optimal engine performance through precise temperature regulation. This thermostat operates in conjunction with several key components to maintain the engine’s thermal efficiency.

Integration with Engine Control Systems

The thermostat interacts with the engine control unit (ECU) to monitor and adjust the engine temperature. The ECU sends signals to the thermostat based on sensor readings, allowing it to open or close as needed to maintain the desired operating temperature. This ensures that the engine runs efficiently under varying conditions ³.

Interaction with Thermostat Housing and Support Assembly

The thermostat is housed within the thermostat housing and support assembly. This housing not only protects the thermostat but also provides a secure mounting point. The housing is designed to withstand the pressures and temperatures within the engine cooling system, ensuring the thermostat functions correctly ⁴.

Connection to Water Manifold and Water Outlet Connection

The thermostat is positioned between the engine block and the water manifold. As the engine heats up, the thermostat opens, allowing coolant to flow through the water manifold and into the engine block. The water outlet connection then directs the heated coolant back to the radiator for cooling. This continuous circulation helps maintain a stable engine temperature ¹.

Role in Torque Converter Cooler and Oil Cooler Systems

In engines equipped with a torque converter cooler or oil cooler, the thermostat plays a role in regulating the flow of coolant to these components. By controlling the temperature of the coolant, the thermostat ensures that the torque converter and oil remain within their optimal operating ranges, enhancing overall engine performance and longevity ³.

Function within Wet Manifolding Systems

In systems utilizing wet manifolding, the thermostat helps manage the temperature of the coolant as it passes through the manifold. This is particularly important in high-performance engines where precise temperature control is essential for maximizing efficiency and power output ⁴.

Coordination with Top-Level Assembly Housing

The thermostat is often part of a top-level assembly housing, which includes additional components such as sensors and gaskets. This assembly ensures a leak-free seal and accurate temperature readings, contributing to the overall reliability of the cooling system ⁴.

Support from Thermostat Mounting and Housing Arrangements

Proper mounting of the thermostat is essential for its function. The thermostat mounting and housing arrangements are designed to provide a stable environment for the thermostat to operate. These components ensure that the thermostat can open and close smoothly, without interference from other engine parts ¹.

Campaign Kit and Maintenance

In some cases, the thermostat may be part of a campaign kit designed for engine maintenance or upgrade. This kit often includes additional components such as gaskets, seals, and support housings, ensuring a comprehensive solution for thermostat replacement or upgrade ³.

Conclusion

In summary, the part 3076489 thermostat is a key component in the engine’s cooling system, working in tandem with various other parts to ensure the engine operates within its optimal temperature range. Its integration with the engine control system, housing assemblies, and cooling components underscores its importance in maintaining engine efficiency and performance ¹²³⁴.