206998
Water Transfer Tube
Cummins®

Introduction

The Cummins 206998 Water Transfer Tube is designed to facilitate efficient coolant transfer within the engine cooling system of commercial trucks. It ensures coolant circulates effectively between the engine and the radiator, maintaining optimal engine temperature and preventing overheating ¹.

Basic Concepts of Water Transfer Tubes

Water transfer tubes operate based on fluid dynamics principles, allowing coolant to move through the engine cooling system. These tubes connect components such as the engine block, radiator, and thermostat housing. They are typically made from durable materials like rubber, silicone, or metal, chosen for their resistance to high temperatures and corrosive coolants ².

Purpose of the Cummins 206998 Water Transfer Tube

This Cummins part enables the movement of coolant between the engine and the radiator, ensuring even distribution throughout the system. Optimal coolant flow is essential for engine performance and longevity, helping prevent overheating and reducing the risk of engine damage ³.

Key Features

The 206998 Water Transfer Tube features robust construction to withstand high pressures and temperatures. It is engineered with precise fittings for secure connections and may include reinforced sections to prevent kinking or collapse under pressure, ensuring consistent coolant flow.

Benefits

Using this part contributes to improved engine cooling efficiency, enhancing the reliability of the cooling system and reducing the likelihood of leaks or failures. Its efficient design can lead to potential cost savings through reduced maintenance needs and increased engine lifespan.

Installation Considerations

Proper installation of the 206998 Water Transfer Tube is crucial for effective performance. Correct alignment with engine and radiator components prevents leaks and ensures secure fittings. Using appropriate tools and techniques during installation minimizes the risk of future issues.

Troubleshooting Common Issues

Common problems with water transfer tubes include leaks, blockages, and inefficient coolant flow. Inspecting the tube for wear, damage, or misalignment and addressing leaks promptly can help maintain efficient coolant circulation. Regular inspections and maintenance prevent many issues.

Maintenance Tips

Regular maintenance of the 206998 Water Transfer Tube ensures continued optimal performance. This includes periodic inspections for wear or damage, cleaning the tube and its connections, and replacing the tube when necessary to ensure efficient cooling system operation.

Cummins Overview

Cummins Inc. is a renowned manufacturer in the commercial truck industry, known for its commitment to quality and innovation in automotive components. The company’s dedication to excellence is evident in its reliable and high-performance parts, designed to meet the demanding requirements of commercial truck applications.

Compatibility with Cummins Engines

The Water Transfer Tube part number 206998 is designed to fit seamlessly with a range of Cummins engines, ensuring efficient heat transfer and maintaining optimal engine temperature.

K19 Series Engines

The K19 series engines, including the K19, KTA19GC, and KTA19GC CM558, are equipped with the 206998 Water Transfer Tube. This part is crucial for the proper functioning of the engine’s cooling system.

QSK19 Series Engines

The QSK19 series engines, including the QSK19 CM2350 K105, QSK19 CM2350 K114, QSK19 CM2350 K144G, QSK19 CM500, QSK19 CM850 MCRS, and QSK19G, are also compatible with the 206998 Water Transfer Tube. This part ensures efficient heat transfer and maintains the engine’s cooling system integrity.

Role in Engine Systems

The 206998 Water Transfer Tube is integral to the efficient operation of various engine systems. It facilitates the movement of coolant between different parts of the engine, ensuring optimal temperature regulation and performance.

Connection to Water Pump and L.O.C

This part connects the Water Pump to the L.O.C (Lubricating Oil Cooler), ensuring a continuous flow of coolant to maintain the temperature of the lubricating oil within safe operating limits.

Engine Oil Cooler

In the Engine Oil Cooler system, the Water Transfer Tube transfers coolant from the water pump to the oil cooler, dissipating excess heat from the engine oil and prolonging its life.

Keel Cooling

For Keel Cooling applications, the Water Transfer Tube circulates coolant around the keel structure, particularly important in marine engines for managing the temperature of critical engine components.

Oil Cooler Water Plumbing

In the Oil Cooler Water Plumbing setup, the Water Transfer Tube directs coolant to and from the oil cooler, ensuring the oil remains at an optimal temperature and reducing the risk of overheating.

Starting Aid Kit

When integrated with a Starting Aid Kit, the Water Transfer Tube circulates warm coolant to preheat the engine, facilitating easier starts in cold-weather conditions and reducing wear on engine components during startup.

Torque Converter Cooler Plumbing

In systems with Torque Converter Cooler Plumbing, the Water Transfer Tube routes coolant to the torque converter cooler, managing the temperature of the transmission fluid for smooth operation.

Torque Converter Oil Cooler

In the Torque Converter Oil Cooler system, the Water Transfer Tube circulates coolant to maintain the temperature of the transmission fluid, essential for the reliable operation of the torque converter and overall transmission system.

Water By-Pass Tube

The Water Transfer Tube interacts with the Water By-Pass Tube system, allowing for alternative coolant pathways when primary routes are blocked or restricted, ensuring continuous coolant flow and maintaining engine temperature stability.

Water Outlet Connection

Finally, the Water Transfer Tube connects to the Water Outlet Connection, facilitating the exit of coolant from the engine block and ensuring effective replacement with cool coolant from the water pump.

Conclusion

The 206998 Water Transfer Tube is a vital component in various engine cooling systems, ensuring efficient coolant circulation and temperature regulation across multiple engine components. Its robust design, compatibility with Cummins engines, and role in maintaining optimal engine performance make it an essential part of the cooling system.