3941929
Water Inlet Connection
Cummins®

Introduction

The Water Inlet Connection 3941929 by Cummins is a component designed for use in the cooling systems of commercial trucks. Its purpose is to facilitate the efficient flow of coolant into the engine, playing a role in maintaining optimal engine temperature and ensuring reliable operation under various conditions ⁴.

Basic Concepts of Water Inlet Connection

Water inlet connections are fundamental components in engine cooling systems. They serve as the entry point for coolant into the engine block, where it absorbs heat generated during combustion. The coolant then circulates through the engine, transferring heat away from critical components and dissipating it through the radiator. This process is vital for maintaining engine temperature within safe operating limits, preventing overheating, and ensuring efficient engine performance ².

Role of Water Inlet Connection in Truck Operation

The Water Inlet Connection 3941929 plays a specific role in the cooling system of a truck by providing a secure and efficient pathway for coolant to enter the engine. It is designed to withstand the pressures and temperatures encountered in heavy-duty applications, ensuring consistent coolant flow even under demanding conditions. By facilitating the smooth circulation of coolant, this component contributes to the overall efficiency and reliability of the engine cooling system ³.

Key Features of Water Inlet Connection 3941929

The Water Inlet Connection 3941929 is constructed with durable materials to withstand the rigors of commercial truck operation. It features precise engineering to ensure a secure fit and reliable seal, preventing coolant leaks that could compromise engine performance. The design may include features such as reinforced connections and corrosion-resistant materials to enhance durability and performance in harsh operating environments ¹.

Benefits of Using Water Inlet Connection 3941929

Utilizing the Water Inlet Connection 3941929 offers several advantages. It provides improved coolant flow, which enhances the efficiency of the cooling system and helps maintain optimal engine temperature. The robust construction and precise engineering of this component contribute to enhanced engine protection, reducing the risk of overheating and related damage. Additionally, its reliability in demanding conditions ensures consistent performance, supporting the longevity and efficiency of the truck’s engine ⁴.

Troubleshooting and Maintenance

Common issues with the Water Inlet Connection 3941929 may include leaks or blockages that can affect coolant flow. Regular inspection and maintenance are recommended to identify and address these issues promptly. Ensuring the connection is securely fitted and free from corrosion or damage can help maintain optimal performance. Following manufacturer guidelines for maintenance and replacement intervals can also contribute to the longevity and reliability of the component ³.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry for producing reliable and efficient components. Their product offerings span a wide range of applications, providing solutions that meet the diverse needs of customers worldwide ⁴.

Compatibility with Cummins Engines

The Cummins part 3941929, known as the Water Inlet Connection, is compatible with a range of Cummins engines, including:

• 6B5.9
• B4.5
• B5.9 GAS PLUS CM556
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125
• ISB CM2150
• ISB CM550
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB6.7 CM2250
• ISBE CM2150
• ISBE CM800
• ISBE4 CM850
• QSB3.9 30 CM550
• QSB4.5 CM2250 EC
• QSB4.5 CM850 (CM2850)
• QSB5.9 30 CM550
• QSB5.9 44 CM550
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

This part is engineered to provide a secure and efficient connection for the water inlet, ensuring that the coolant flows smoothly and effectively through the engine’s cooling system. Its compatibility with a diverse range of Cummins engines highlights its versatility and importance in maintaining engine performance and longevity ⁴.

Role of Part 3941929 Water Inlet Connection in Engine Systems

The water inlet connection, specifically part 3941929, is integral to the efficient operation of various engine systems. It serves as the primary interface for the introduction of coolant into the engine block, ensuring that the cooling system functions optimally ².

Integration with Cooling System

In the cooling system, the water inlet connection is positioned to direct coolant flow from the radiator into the engine block. This part ensures a consistent and regulated flow of coolant, which is essential for maintaining engine temperature within safe operating limits. The connection interfaces with the thermostat housing, allowing for temperature-regulated flow that prevents overheating and ensures efficient engine performance ³.

Interaction with Engine Block

Once the coolant enters through the water inlet connection, it circulates through the engine block’s water jackets. These jackets surround critical engine components such as the cylinders and combustion chambers. The coolant absorbs heat generated during combustion, which is then carried away to the radiator for dissipation. The water inlet connection’s design ensures minimal restriction to coolant flow, enhancing the overall efficiency of heat transfer ¹.

Coordination with Thermostat

The water inlet connection works in tandem with the thermostat to manage coolant flow based on engine temperature. When the engine is cold, the thermostat remains closed, directing coolant back to the water pump and bypassing the radiator. As the engine warms, the thermostat opens, allowing coolant to flow through the radiator for cooling. The water inlet connection facilitates this transition smoothly, ensuring that the engine reaches optimal operating temperature quickly and maintains it consistently ².

Support for Water Pump

The water pump relies on a steady supply of coolant from the water inlet connection to maintain circulation throughout the engine. The connection’s secure fit and precise alignment with the water pump inlet ensure that there are no leaks or disruptions in coolant flow. This reliability is vital for the water pump’s performance, as any inconsistency can lead to inefficient cooling and potential engine damage ³.

Contribution to Overall Engine Health

By ensuring a consistent and regulated flow of coolant, the water inlet connection plays a significant role in preserving engine health. It helps prevent hotspots within the engine block, reduces thermal stress on engine components, and contributes to the longevity of the engine. The connection’s role in maintaining optimal coolant levels and flow is fundamental to the engine’s reliable operation under various conditions ⁴.

Conclusion

The Water Inlet Connection 3941929 by Cummins is a critical component in the cooling systems of commercial trucks. Its role in facilitating efficient coolant flow, maintaining optimal engine temperature, and ensuring reliable operation under various conditions is fundamental to the overall performance and longevity of the engine. Regular maintenance and adherence to manufacturer guidelines are essential for maximizing the benefits of this component.