3931522
Plain Hose
Cummins®

Introduction

The Cummins 3931522 Plain Hose is a component designed for use in commercial truck applications. Manufactured by Cummins, a well-established name in the automotive industry, this hose serves a specific function within the truck’s system. It is part of the network that ensures the efficient operation of various truck systems by facilitating the transport of fluids ¹.

Basic Concepts of Plain Hoses

Plain hoses are a type of tubing used in automotive and industrial applications to convey fluids such as coolant, fuel, air, and other substances. They are typically constructed from a single layer of material, which can vary depending on the specific requirements of the application. Common materials include rubber, silicone, and various synthetic compounds, each chosen for their particular properties like flexibility, temperature resistance, and chemical compatibility. Plain hoses differ from reinforced hoses, which have additional layers or materials to enhance strength and durability under higher pressure or more demanding conditions ².

Role of the Cummins 3931522 Plain Hose in Truck Operation

The Cummins 3931522 Plain Hose plays a role in the truck’s system by connecting specific components and enabling the transport of fluids between them. It is integral to maintaining the flow of substances necessary for the operation of the truck’s engine and other systems. The hose is designed to withstand the pressures and temperatures associated with its intended use, ensuring reliable performance under various operating conditions.

Key Features

The Cummins 3931522 Plain Hose is characterized by its design and material properties, which contribute to its functionality and durability. It is made from materials that offer resistance to the specific fluids it transports, as well as to environmental factors such as temperature fluctuations and exposure to chemicals. The hose’s design ensures a secure fit within the truck’s system, minimizing the risk of leaks and ensuring efficient fluid transfer. Its durability is a testament to Cummins’ commitment to quality, providing truck operators with a component that can withstand the rigors of commercial use.

Benefits

Utilizing the Cummins 3931522 Plain Hose offers several advantages. Its design and material properties contribute to improved performance and longevity, reducing the need for frequent replacements. The hose’s resistance to various conditions enhances its reliability, ensuring consistent operation in diverse environments. Furthermore, by facilitating efficient fluid transport, the hose contributes to the overall efficiency of the truck, potentially leading to cost savings over time.

Troubleshooting and Maintenance

To ensure the longevity and optimal performance of the Cummins 3931522 Plain Hose, it is important to be aware of common issues that may arise. Regular inspections can help identify signs of wear, such as cracks or softening of the material, which may indicate the need for replacement. Proper installation techniques are crucial to prevent leaks and ensure a secure connection within the truck’s system. Maintenance practices, such as keeping the hose clean and free from obstructions, can also contribute to its durability and efficiency.

Compatibility of Cummins 3931522 Plain Hose with Cummins Engines

The Cummins 3931522 Plain Hose is designed to fit a variety of Cummins engines. This hose is a crucial component in the engine’s cooling and fuel systems, ensuring efficient operation and longevity of the engine. Below is a detailed breakdown of the engines with which this hose is compatible:

ISB Series Engines

• ISB CM2150
• ISB CM550
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

ISBE Series Engines

• ISBE CM2150
• ISBE4 CM850

ISC Series Engines

• ISC8.3 CM2250

ISL Series Engines

• ISL9 CM2250

QSB Series Engines

• QSB4.5 CM2250 EC
• QSB4.5 CM850(CM2850)
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850(CM2850)
• QSB7 CM2880 B117

Other Engines

• 6B5.9
• B5.9 G
• B6.7 CM2670 B153B

By ensuring that the Cummins 3931522 Plain Hose is properly installed and maintained, engine owners can expect reliable performance and longevity from their Cummins engines. This hose is a critical component in the fluid systems of these engines, and its compatibility with a wide range of models underscores its importance in maintaining engine health.

Role of Cummins 3931522 Plain Hose in Various Engine Systems

The Cummins 3931522 Plain Hose is a versatile component utilized in several engine systems to facilitate the transfer of fluids and gases. Its applications span across different subsystems, each playing a significant role in the overall functionality and efficiency of the engine.

Air Compressor System

In the air compressor system, the Cummins 3931522 Plain Hose is employed to route compressed air from the compressor to various points within the engine where pressurized air is required. This ensures efficient operation of components that rely on compressed air, such as pneumatic actuators and control systems.

Compressor Coolant Arrangement

Within the compressor coolant arrangement, this hose is integral in circulating coolant through the compressor. It helps in maintaining optimal operating temperatures, preventing overheating, and ensuring the longevity and reliability of the compressor.

Block Vent Plumbing

For block vent plumbing, the Cummins 3931522 Plain Hose is used to vent gases from the engine block. This is essential for maintaining proper pressure levels within the engine block, which is vital for the engine’s structural integrity and performance.

Compressor Coolant Plumbing

In compressor coolant plumbing, the hose facilitates the flow of coolant to and from the compressor. This is crucial for dissipating heat generated during compression, thereby protecting the compressor from thermal damage and ensuring consistent performance.

Cooler and Torque Converter Oil Plumbing

The hose is also utilized in the cooler and torque converter oil plumbing systems. It aids in the circulation of oil through the cooler, ensuring that the oil remains at an optimal temperature. This is important for reducing friction and wear within the torque converter, enhancing its efficiency and durability.

Cabin Heater Plumbing

In the cabin heater system, the Cummins 3931522 Plain Hose transports hot coolant from the engine to the heater core. This allows for the effective transfer of heat into the cabin, providing comfort to occupants in cold weather conditions.

Exhaust Recirculation Water Plumbing

For exhaust recirculation water systems, the hose is used to circulate water that is injected into the exhaust stream. This helps in reducing nitrogen oxides (NOx) emissions, contributing to a cleaner and more environmentally friendly engine operation.

Torque Converter Cooler Vent

In the torque converter cooler vent system, the hose plays a role in venting excess pressure from the cooler. This is important for maintaining the integrity of the cooler and ensuring that the torque converter operates within safe pressure limits.

Engine Coolant System

Finally, in the engine coolant system, the Cummins 3931522 Plain Hose is used to circulate coolant throughout the engine. This is essential for dissipating heat generated during combustion, protecting engine components from overheating, and ensuring the engine operates within its designed temperature range.

Conclusion

The Cummins 3931522 Plain Hose is a critical component in the efficient operation of commercial trucks and various Cummins engines. Its design, material properties, and compatibility with a wide range of engine models make it a reliable and durable choice for fluid transport in demanding applications. Regular maintenance and proper installation are key to ensuring its longevity and optimal performance.