3863950
Flexible Hose
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$164.95 $196.29

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 Cummins 3863950 Flexible Hose is a component designed for use in commercial trucks. It serves a significant role in ensuring the efficient operation of various truck systems by facilitating the transfer of fluids between different components. Understanding its purpose and functionality is key to maintaining the overall performance and reliability of commercial vehicles.

Basic Concepts of Flexible Hoses

Flexible hoses are used in automotive systems to connect various components that require fluid transfer. They are designed to accommodate movement and vibration, which are common in vehicle operations. These hoses allow for the transfer of fluids such as coolant, fuel, and hydraulic fluid, ensuring that systems operate smoothly and efficiently. Their flexibility helps in reducing stress on connected components, thereby enhancing the durability and performance of the vehicle 1.

Purpose of the 3863950 Flexible Hose

The Cummins 3863950 Flexible Hose is specifically designed to connect different systems within a truck, facilitating the transport of fluids. It plays a role in ensuring that fluids are efficiently transferred between components, which is vital for the operation of the truck’s systems. This hose is engineered to withstand the pressures and temperatures associated with commercial truck operations, ensuring reliable performance.

Key Features

The Cummins 3863950 Flexible Hose is characterized by several key features that enhance its performance and longevity. It is made from high-quality materials that offer excellent flexibility and durability. The design of the hose includes reinforced layers to withstand high pressure and temperature variations. Additionally, its construction ensures resistance to wear and tear, contributing to a longer service life.

Benefits

Using the Cummins 3863950 Flexible Hose provides several benefits. Its flexibility allows for easier installation and accommodation of movement within the truck’s systems. The hose’s design reduces the risk of leaks, ensuring a secure and efficient fluid transfer. Furthermore, its durability means it can withstand the demanding conditions of commercial truck operations, offering long-term reliability.

Installation Process

Installing the Cummins 3863950 Flexible Hose requires careful attention to detail to ensure a secure fit. The process involves preparing the connection points, applying the appropriate fittings, and securing the hose in place. Using the correct tools and following best practices during installation will help in achieving a leak-free connection and ensure the hose functions as intended.

Troubleshooting Common Issues

Common issues with flexible hoses include leaks and wear. To address these problems, it is important to regularly inspect the hose for signs of damage or deterioration. If a leak is detected, the hose should be replaced to prevent fluid loss and potential system failure. Regular maintenance and timely replacement can help in avoiding more serious issues.

Maintenance Tips

To prolong the life of the Cummins 3863950 Flexible Hose, regular maintenance is recommended. This includes periodic inspections for signs of wear, checking for leaks, and ensuring that all connections are secure. Cleaning the hose and its surroundings can also help in preventing buildup that might lead to corrosion or other forms of damage. Knowing when to replace the hose is crucial for maintaining system efficiency.

About Cummins

Cummins Inc. is a leading manufacturer in the automotive industry, known for its wide range of high-quality truck components. With a rich history of innovation and excellence, Cummins has established a reputation for producing reliable and durable parts that meet the demanding needs of commercial vehicle operators. The company’s commitment to quality and performance is evident in its product offerings, including the Cummins 3863950 Flexible Hose.

Cummins Flexible Hose 3863950 Compatibility

The Cummins Flexible Hose part number 3863950 is designed to fit seamlessly with a range of Cummins engines, ensuring optimal performance and durability. This part is engineered to meet the rigorous demands of various applications, providing a reliable connection in critical systems.

Compatible Engines

  • 4B3.9
  • QSB4.5
  • CM850 (CM2850)

These engines, while differing in specifications and applications, share common design elements that allow the 3863950 Flexible Hose to integrate effectively. The hose is crafted to withstand the operational stresses of these engines, ensuring longevity and consistent performance.

Integration and Functionality

The 3863950 Flexible Hose is engineered to connect various fluid systems within the engine, facilitating the transfer of essential fluids such as coolant, fuel, and hydraulic fluids. Its flexibility and durability make it an ideal component for maintaining the integrity of these connections, even under high-stress conditions.

Installation Considerations

When installing the 3863950 Flexible Hose, it is crucial to follow the manufacturer’s guidelines to ensure proper fitment and functionality. This includes verifying the correct routing and securing the hose to prevent any potential leaks or disconnections. Proper installation is key to maintaining the engine’s performance and reliability.

Performance Benefits

By using the 3863950 Flexible Hose, users can expect enhanced performance and reduced maintenance needs. The hose’s design allows for smooth fluid transfer, minimizing the risk of blockages and leaks. This results in improved engine efficiency and a longer service life for the connected components.

Role of Part 3863950 Flexible Hose in Engine Systems

The part 3863950 Flexible Hose is integral to the efficient operation of various engine systems. It facilitates the movement of fluids between different components, ensuring seamless functionality and performance.

Integration with Filters

In systems equipped with filters, the flexible hose plays a significant role in connecting the filter to other parts of the engine. This connection allows for the smooth passage of fluids, which are essential for the filtration process. The hose’s flexibility accommodates the dynamic movements and vibrations of the engine, maintaining a secure and leak-free connection.

Full Flow Oil Systems

Within full flow oil systems, the flexible hose is responsible for transporting oil from the oil tank to the filter and subsequently to the engine components. This ensures that the engine receives a consistent supply of clean oil, which is vital for lubrication and cooling. The hose’s design allows it to withstand the pressure and temperature variations inherent in oil flow systems, contributing to the overall reliability of the engine 2.

Lubricating Oil Systems

In lubricating oil systems, the flexible hose is used to connect the oil pump to various engine parts that require lubrication. This includes critical components such as bearings, pistons, and camshafts. The hose ensures that lubricating oil is distributed evenly, reducing friction and wear. Its flexibility is particularly beneficial in navigating the complex routing required in modern engine designs, enhancing the efficiency of the lubrication process.

Conclusion

Overall, the part 3863950 Flexible Hose is a key component in maintaining the fluid dynamics within engine systems, supporting the functionality of filters, full flow oil systems, and lubricating oil systems. Its design and features contribute to the efficient and reliable operation of commercial trucks, making it an essential part for vehicle maintenance and performance.


  1. Quigley, Jon M. SAE International’s Dictionary of Testing, Verification and Validation. SAE International, 2023.

  2. Wang, Yushu. Introduction to Engine Valvetrains. SAE International, 2007.

SPECIFICATIONS

Package Dimensions
14.63 x 14.0 x 2.0 in
Weight
2.75 lbs
* 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.