203331
Water Bypass Connection
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$939.95 $1,118.54

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Water Bypass Connection (Part #203331) by Cummins is a component designed to facilitate the efficient operation of commercial truck engine cooling systems. Its purpose is to manage the flow of coolant within the engine, ensuring that the engine maintains an optimal operating temperature. This part is significant in the context of commercial trucks, where engine performance and reliability are paramount.

Basic Concepts of Water Bypass Connection

Water bypass connections in engine cooling systems are designed to regulate the flow of coolant. They function by allowing coolant to bypass the radiator when the engine is cold, directing it instead to the engine block to warm it up more quickly. As the engine reaches its operating temperature, the bypass connection gradually allows more coolant to flow through the radiator, helping to maintain a stable temperature. This mechanism is vital for the efficient operation of the cooling system, ensuring that the engine does not overheat or operate at temperatures that are too low 1.

Purpose of the 203331 Water Bypass Connection

This Cummins part plays a specific role in the operation of a truck’s engine cooling system by managing the flow of coolant in response to the engine’s temperature. This part contributes to efficient temperature regulation by ensuring that the engine warms up quickly and maintains an optimal operating temperature throughout its operation. By controlling the coolant flow, it helps to prevent overheating and ensures that the engine operates within its designed temperature range 2.

Key Features

The 203331 is characterized by its robust design and the materials used in its construction. It is engineered to withstand the high pressures and temperatures found within a truck’s engine cooling system. The part is made from durable materials that ensure longevity and reliable performance. Its design includes precise fittings and seals that prevent coolant leaks, ensuring efficient operation. Additionally, the connection is designed to be compatible with a wide range of truck models and engine types, enhancing its versatility 3.

Benefits

Using the 203331 offers several benefits. It contributes to improved engine efficiency by ensuring that the engine operates at its optimal temperature, which can lead to better fuel economy and reduced emissions. The part also reduces the risk of overheating, which can cause engine damage and reduce the lifespan of the engine. Furthermore, it enhances the overall performance of the truck’s cooling system by providing a reliable and efficient means of managing coolant flow 4.

Installation and Integration

To properly install and integrate the 203331 into a truck’s engine cooling system, follow these steps:

  1. Ensure the engine is cool and the cooling system is drained to prevent coolant spillage.
  2. Locate the existing water bypass connection or the designated installation point in the engine cooling system.
  3. Remove the old connection, if applicable, taking care to note the orientation and connections for reinstallation.
  4. Install the 203331, ensuring all fittings are secure and properly aligned.
  5. Refill the cooling system with the appropriate coolant mixture.
  6. Start the engine and monitor the cooling system for any leaks or irregularities in coolant flow.

Troubleshooting and Maintenance

To troubleshoot common issues related to the 203331, check for signs of leaks around the connection points, ensure all fittings are secure, and verify that the connection is operating within the expected temperature range. Regular maintenance practices include inspecting the connection for wear or damage, ensuring that all seals and gaskets are in good condition, and replacing the part if it shows signs of failure. Keeping the cooling system clean and using the recommended coolant mixture can also contribute to the longevity and efficiency of the water bypass connection.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions solutions. With a history spanning over a century, Cummins has established a reputation for innovation, quality, and reliability in the automotive industry. The company’s product offerings cater to various sectors, including commercial vehicles, construction, agriculture, and power generation, among others. Cummins’ commitment to excellence and customer satisfaction has made it a trusted name in the industry.

Role of Part 203331 Water Bypass Connection in Engine Systems

The Water Bypass Connection, identified as part 203331, is integral to the efficient operation of several key components within engine systems. This component facilitates the regulated flow of water, ensuring optimal performance and longevity of the associated parts.

Integration with the Cooler

In engine systems, the cooler is designed to maintain the temperature of various fluids, ensuring they operate within specified parameters. The Water Bypass Connection plays a significant role here by allowing excess water to bypass the cooler when the system temperature is within the desired range. This prevents overcooling and ensures that the cooler operates efficiently without unnecessary strain.

Functionality with Lube Oil Cooler

The Lube Oil Cooler is essential for maintaining the viscosity and temperature of the lube oil, which is vital for engine lubrication. The Water Bypass Connection ensures that the Lube Oil Cooler receives a consistent flow of water, optimizing the cooling process. By managing the water flow, it helps in maintaining the lube oil at an optimal temperature, thereby enhancing the lubrication efficiency and protecting engine components from wear.

Interaction with Lubricating Oil Filter

The Lubricating Oil Filter is responsible for removing contaminants from the lube oil, ensuring that only clean oil circulates through the engine. The Water Bypass Connection assists in this process by regulating the temperature of the lube oil, which affects its viscosity and filtering efficiency. Proper temperature management, facilitated by the Water Bypass Connection, ensures that the Lubricating Oil Filter operates effectively, prolonging its lifespan and maintaining engine health.

Coordination with Lubricating Oil Filter Cooler

The Lubricating Oil Filter Cooler works in tandem with the Lubricating Oil Filter to further cool the lube oil after filtration. The Water Bypass Connection ensures that the cooler receives a regulated flow of water, optimizing the cooling process. This integration helps in maintaining the lube oil at an ideal temperature, which is crucial for efficient filtration and overall engine performance.

Conclusion

In summary, the Water Bypass Connection (part 203331) is a vital component that enhances the functionality and efficiency of the cooler, lube oil cooler, lubricating oil filter, and lubricating oil filter cooler within engine systems. Its role in managing water flow ensures that these components operate within their optimal parameters, contributing to the overall reliability and performance of the engine.


  1. Genta, G., & Morello, L. (2019). The Automotive Chassis Volume 1 Components Design Mechanical Engineering Series 2nd Edition. Springer.

  2. Carroll, D. R. (2020). Energy Efficiency of Vehicles. SAE International.

  3. Limpert, R. (2011). Brake Design and Safety, Third Edition. SAE International.

  4. Ling, F. F. (2011). The Automotive Body. Springer Science.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
8.63 x 8.25 x 5.5 in
Weight
5.3 lb
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.