3681594
Water Inlet Connection
Cummins®

The Water Inlet Connection, part number 3681594, is a component manufactured by Cummins, a prominent name in the automotive industry, particularly for its heavy-duty truck components. This part is integral to the operation of heavy-duty trucks, playing a significant role in the engine’s cooling system. Understanding its purpose and functionality is key to maintaining the efficiency and reliability of truck engines.

Basic Concepts of Water Inlet Connection

Water inlet connections in heavy-duty trucks are designed to facilitate the flow of coolant into the engine block. They are a vital part of the cooling system, ensuring that the engine operates within safe temperature ranges ¹. The coolant absorbs heat from the engine and transfers it away, preventing overheating and potential engine damage. The design and placement of these connections are critical for effective coolant circulation.

Purpose of the 3681594 Water Inlet Connection

The 3681594 Water Inlet Connection is specifically engineered to allow coolant to enter the engine block efficiently. It plays a role in the engine cooling system by ensuring a steady and consistent flow of coolant, which is crucial for maintaining optimal engine temperature ². This part is designed to integrate seamlessly with the engine’s cooling system, enhancing its overall effectiveness.

Key Features

The 3681594 Water Inlet Connection is characterized by several notable features. It is constructed from durable materials, ensuring longevity and resistance to the harsh conditions often encountered in heavy-duty truck operations. The connection type is designed for a secure fit, minimizing the risk of leaks. Additionally, it may include unique attributes such as enhanced sealing mechanisms or specific design elements that improve coolant flow.

Benefits

The advantages of the 3681594 Water Inlet Connection include improved cooling efficiency, which is vital for the performance and longevity of the engine. Its durable construction ensures reliability under various operating conditions, contributing to the overall robustness of the truck’s cooling system. The design of this part also aids in maintaining consistent coolant flow, which is essential for effective engine temperature management.

Installation Process

Installing the 3681594 Water Inlet Connection requires careful attention to detail. The process involves ensuring the engine is cool, using the appropriate tools for a secure fit, and following manufacturer guidelines for torque specifications ³. It’s important to check for any obstructions or damage in the connection area before installation. Proper installation is key to ensuring the effectiveness of the cooling system.

Maintenance Tips

To ensure the longevity and optimal performance of the 3681594 Water Inlet Connection, regular maintenance is recommended. This includes routine inspections for signs of wear or damage, ensuring there are no leaks, and cleaning the connection area to prevent buildup that could impede coolant flow. Adhering to these maintenance practices helps in maintaining the efficiency of the engine cooling system.

Troubleshooting Common Issues

Common issues with the 3681594 Water Inlet Connection may include leaks or reduced coolant flow. Troubleshooting these problems involves inspecting the connection for signs of damage or wear, checking for proper installation, and ensuring there are no obstructions in the coolant pathway. Addressing these issues promptly can prevent more significant problems with the engine cooling system.

Cummins Overview

Cummins Inc. is a renowned manufacturer in the automotive industry, particularly for its heavy-duty truck components. With a rich history and a strong reputation for quality and innovation, Cummins offers a wide range of products designed to enhance the performance and reliability of heavy-duty vehicles. Their commitment to excellence is evident in their product offerings, including the 3681594 Water Inlet Connection.

Water Inlet Connection Part 3681594 Compatibility with Cummins Engines

The Water Inlet Connection part 3681594, manufactured by Cummins, is designed to fit a range of their diesel engines. This part is crucial for the proper functioning of the engine’s cooling system, ensuring that water is efficiently directed into the engine block. Below is a detailed description of the compatibility of this part with various Cummins engines.

ISX Series Engines

• ISX CM570
• ISX CM870
• ISX CM871
• ISX15 CM2250
• ISX15 CM2250 SN
• ISX15 CM2350 X101

The Water Inlet Connection part 3681594 is compatible with the ISX series engines, including the ISX CM570, ISX CM870, ISX CM871, ISX15 CM2250, ISX15 CM2250 SN, and ISX15 CM2350 X101. These engines are known for their robust performance and reliability, often used in heavy-duty applications.

QSX Series Engines

• QSX15 CM2250 ECF
• QSX15 CM2350 X105

The part 3681594 also fits the QSX15 series engines, specifically the QSX15 CM2250 ECF and QSX15 CM2350 X105. These engines are designed to deliver high power output while maintaining fuel efficiency, making them suitable for various commercial and industrial applications.

X15 Series Engines

• X15 CM2350 X116B
• X15 CM2350 X123B
• X15 CM2450 X134B

The Water Inlet Connection part 3681594 is also compatible with the X15 series engines, including the X15 CM2350 X116B, X15 CM2350 X123B, and X15 CM2450 X134B. These engines are engineered for durability and efficiency, often used in demanding environments where reliability is critical.

This part ensures that the water inlet system functions correctly, preventing overheating and maintaining optimal engine performance across these various engine models.

Role of Part 3681594 Water Inlet Connection in Engine Systems

The water inlet connection, identified by part number 3681594, 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. This component ensures a secure and leak-free connection between the engine and the coolant supply lines.

In the context of the engine’s cooling system, the water inlet connection facilitates the flow of coolant from the radiator to the engine block. It is strategically positioned to direct coolant towards the water jacket, which surrounds the cylinders and other critical components. This ensures that the coolant effectively absorbs heat generated during combustion, maintaining optimal engine temperature.

Additionally, the water inlet connection interacts with the thermostat housing, allowing for regulated coolant flow based on engine temperature. This interaction is vital for the thermostat to function correctly, opening and closing to control the flow of coolant to the radiator as needed.

Furthermore, this component is often connected to the heater core supply line, ensuring that warm coolant is available for the vehicle’s heating system. This connection is essential for passenger comfort, especially in colder climates.

In summary, part 3681594 water inlet connection plays a significant role in maintaining engine efficiency and passenger comfort by ensuring proper coolant circulation throughout the engine system.

Conclusion

The 3681594 Water Inlet Connection is a critical component in the cooling systems of Cummins engines, ensuring efficient coolant flow and maintaining optimal engine temperature. Its durable construction and compatibility with various Cummins engine models make it a reliable choice for heavy-duty applications. Regular maintenance and proper installation are essential for the longevity and effectiveness of this part.