3026395
Plain Hose
Cummins®

The Cummins 3026395 Plain Hose is a component designed for use in commercial trucks. It serves a specific function within the truck’s fluid systems, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and significance is important for maintaining the truck’s performance and longevity.

Basic Concepts of Plain Hoses

Plain hoses are flexible tubes used to transport fluids within various systems. They are characterized by their simple construction, typically consisting of a single layer of material. Unlike reinforced hoses, which have additional layers for strength and durability, plain hoses rely on the properties of their material to perform their function. They are commonly used in applications where the fluid pressure is moderate and the environment is not excessively harsh ¹.

Purpose and Function of the 3026395 Plain Hose

The 3026395 Plain Hose plays a role in the fluid systems of a truck by transporting liquids such as coolant, fuel, or hydraulic fluid. It is integrated into systems where flexibility and ease of installation are prioritized over extreme pressure resistance. The hose allows for the movement and vibration typical in a truck’s operation without compromising the integrity of the fluid pathway ².

Key Features

The 3026395 Plain Hose is constructed from materials that offer a balance of durability and flexibility. Its design is tailored to withstand the conditions encountered in heavy-duty applications, including temperature variations and exposure to chemicals. The hose’s flexibility allows it to accommodate the dynamic movements of a truck’s engine and chassis, while its material composition ensures longevity and resistance to wear ³.

Benefits of Using the 3026395 Plain Hose

Utilizing the 3026395 Plain Hose in a truck’s fluid systems can lead to improved reliability and performance. Its resistance to wear and tear reduces the likelihood of leaks and failures, which can be particularly beneficial in the demanding environments of commercial trucking. Additionally, its compatibility with various truck systems makes it a versatile choice for fleet maintenance.

Installation Considerations

Proper installation of the 3026395 Plain Hose is important for ensuring its optimal performance and longevity. Guidelines for installation include ensuring the hose is correctly routed to avoid sharp bends or abrasion points, securing it in place with appropriate clamps, and checking for proper alignment with fittings to prevent stress on the hose.

Maintenance and Troubleshooting

Regular maintenance of the 3026395 Plain Hose involves inspecting it for signs of wear, such as cracks or softening of the material, and checking for leaks or bulges that could indicate internal damage. Troubleshooting common issues may involve identifying the source of a leak, assessing the condition of the hose, and determining whether repair or replacement is necessary.

Common Failure Modes

Plain hoses, including the 3026395, can experience several failure modes. These may include wear from constant flexing, degradation from exposure to chemicals or heat, and physical damage from abrasion or impact. Recognizing the signs of these failure modes, such as visible damage or a drop in system performance, is important for timely maintenance or replacement.

Replacement Procedures

Replacing the 3026395 Plain Hose should be done with attention to safety and correct procedure. This involves draining the fluid from the system, disconnecting the old hose, installing the new hose with the correct fittings, and refilling the system. Tools required may include wrenches for fittings and possibly a fluid drain pan. Safety precautions include wearing protective gloves and eyewear and ensuring the truck is securely supported if working underneath it.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established itself as a key player in the commercial truck industry, providing reliable and efficient power solutions for a wide range of applications.

Engine Compatibility with Plain Hose Part 3026395

The Plain Hose part 3026395, manufactured by Cummins, is designed to fit seamlessly with a variety of Cummins engines. This hose is a critical component in the engine’s cooling and fuel systems, ensuring efficient operation and longevity of the engine. Below is a detailed look at how this part integrates with specific Cummins engines:

K-Series Engines

• K19: This engine benefits from the Plain Hose part 3026395 in its fuel delivery system, ensuring a reliable connection between the fuel pump and the engine.
• K38: The hose is integral to the cooling system of the K38 engine, providing a necessary conduit for coolant flow.
• K50: In the K50 engine, the hose is used to maintain the integrity of the fuel system, ensuring that fuel is delivered efficiently to the engine.

KTA19 Series

• KTA19GC: The Plain Hose part 3026395 is essential in the KTA19GC engine’s cooling system, facilitating the movement of coolant and maintaining optimal engine temperature.

QSB6.7 Series

• QSB6.7 M CM2250: This engine utilizes the hose in its fuel system, ensuring that fuel is delivered consistently and without leaks, which is crucial for the engine’s performance and efficiency.

V903 Series

• V903: The hose is a key component in the V903 engine’s cooling system, providing a necessary pathway for coolant to flow through the engine, thereby preventing overheating.

Each of these engines relies on the Plain Hose part 3026395 to maintain its operational integrity, whether it is for fuel delivery, coolant flow, or other critical functions. This part’s compatibility with a range of Cummins engines underscores its versatility and importance in ensuring engine performance and longevity.

Role of Part 3026395 Plain Hose in Various Engine Systems

Part 3026395 Plain Hose is an essential component in several engine systems, facilitating the smooth operation and efficiency of these systems. Below is a detailed overview of its role in various components:

Connection

The plain hose is utilized to establish secure and reliable connections between different parts of the engine system. It ensures that fluids, such as oil and coolant, are transferred efficiently without leaks.

Wet Exhaust Manifold (Wet Exh Mtg)

In wet exhaust manifolds, the plain hose plays a role in managing the flow of cooling water. This helps in maintaining the temperature of the exhaust manifold, preventing overheating and ensuring optimal performance.

Crankcase Explosion Valve

The hose is used to connect the crankcase explosion valve to other components, allowing for the safe release of pressure and gases from the crankcase. This helps in maintaining a stable operating environment within the engine.

Dipstick Fill & Breather

For components like the dipstick fill & breather and dipstick fill & breather systems, the plain hose ensures that oil levels are accurately monitored and that the breather system functions correctly, allowing for the release of pressure and moisture from the crankcase.

Engine Oil Cooler and Engine Oil Cooler Cover

In engine oil cooler systems, the hose facilitates the circulation of oil through the cooler, ensuring that the oil remains at an optimal temperature. This is vital for the longevity and efficiency of the engine.

Gear Oil Cooler

Similar to the engine oil cooler, the gear oil cooler uses the plain hose to circulate gear oil, maintaining the temperature and viscosity necessary for smooth gear operation.

Intake Manifold

Within the intake manifold system, the hose may be used to connect various sensors and components, ensuring that air and fuel mixtures are delivered efficiently to the engine cylinders.

Keel Cooling System

In marine applications, the plain hose is integral to the keel cooling system, helping to circulate seawater or coolant to regulate the temperature of the engine and other critical components.

STC Hoses Kit for KTA38C 120T

The plain hose is a component of the STC hoses kit, designed specifically for the KTA38C 120T engine. It ensures that all connections within the kit are secure and function as intended.

Lubricating Oil Filter

The hose connects the lubricating oil filter to the engine, allowing for the efficient filtration of oil and the removal of contaminants, which is essential for engine health.

Manifold Water and Mounting Breather

In systems involving manifold water and mounting breathers, the plain hose ensures that water and air are properly managed, contributing to the overall stability and performance of the engine.

Oil Cooler and Oil Filter/Cooler

For oil cooler and oil filter/cooler systems, the hose ensures that oil is effectively cooled and filtered, maintaining its quality and extending the life of the engine.

Plumbing for Keel Cooler

In the plumbing of keel coolers, the plain hose is used to create a reliable pathway for coolant or seawater, ensuring efficient heat exchange and engine cooling.

Sea Water Pipe and Sea Water Piping

For sea water pipes and piping systems, the hose is used to connect various components, ensuring that seawater is effectively circulated for cooling purposes in marine engines.

Step Hoses Kit

In step hoses kits, the plain hose is used to create a series of connections that facilitate the step-by-step flow of fluids, ensuring that each component receives the necessary coolant or lubricant.

Torque Converter Cooler and Torque Converter Mounting

The hose is utilized in torque converter cooler and mounting systems to ensure that the torque converter operates within optimal temperature ranges, enhancing performance and durability.

Water Bypass Mounting Tube

Finally, in water bypass mounting tube systems, the plain hose ensures that water is effectively bypassed around certain components when necessary, contributing to the overall efficiency and reliability of the engine system.

Conclusion

The Cummins 3026395 Plain Hose is a versatile and essential component in the fluid systems of commercial trucks and various Cummins engines. Its design and material composition ensure durability, flexibility, and resistance to wear, contributing to the overall efficiency and reliability of the vehicle. Proper installation, maintenance, and timely replacement are key to maximizing the performance and longevity of this part.