4944939
Plain Hose
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$10.95 $13.03

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 4944939 Plain Hose is a component designed for use in commercial truck systems. It serves as a conduit for transporting various fluids within the truck’s system, ensuring efficient operation and maintenance of the vehicle’s components.

Basic Concepts of Plain Hoses

Plain hoses are flexible tubes used in automotive and industrial applications to convey fluids such as coolant, fuel, oil, and air. They are constructed from materials that offer flexibility, durability, and resistance to the specific fluids they transport. Within a system, plain hoses allow for movement and vibration without compromising the integrity of the fluid pathway 1.

Purpose of the Cummins 4944939 Plain Hose

This Cummins part is integral to the operation of a truck, connecting various systems and transporting essential fluids. It plays a role in maintaining the flow of fluids between components, which is vital for the truck’s performance and longevity. The hose is designed to withstand the pressures and temperatures associated with its specific application, ensuring reliable fluid transfer 2.

Key Features

This part is characterized by several key features that enhance its performance and longevity. These include its material composition, which is selected for durability and resistance to the fluids it transports. The hose also exhibits flexibility, allowing it to accommodate the movement and vibration typical in a truck’s operating environment. Design specifications such as diameter, length, and reinforcement contribute to its effectiveness in high-stress applications 3.

Benefits of Using Cummins 4944939 Plain Hose

Utilizing this Cummins part offers several advantages. It contributes to improved system efficiency by ensuring a consistent and reliable flow of fluids. The hose’s design reduces the risk of leaks, which can lead to system failures or inefficiencies. Additionally, its durability ensures a longer service life compared to other hose types, reducing the need for frequent replacements.

Installation Considerations

When installing this part, it is important to follow guidelines and best practices to ensure proper integration into the truck’s system. This includes using the correct fitting techniques to secure the hose in place and verifying compatibility with existing systems to prevent issues such as leaks or improper fluid flow.

Maintenance and Troubleshooting

To ensure the longevity and optimal performance of this Cummins part, regular maintenance is recommended. This includes inspecting the hose for signs of wear, checking connections for leaks, and ensuring that the hose remains free from obstructions. Common issues such as cracks or leaks can often be addressed through repair or replacement, depending on the extent of the damage.

Safety Precautions

When handling, installing, or maintaining this Cummins part, it is important to observe safety measures to prevent accidents and ensure safe operation. This includes wearing appropriate personal protective equipment, ensuring the truck is properly shut down before beginning work, and following manufacturer guidelines for installation and maintenance.

Environmental Impact

The use and disposal of this Cummins part should be considered in the context of environmental impact. Recycling options and sustainable practices can be explored to minimize waste and reduce the environmental footprint associated with the hose’s lifecycle.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a commitment to quality, Cummins serves the automotive and industrial sectors with a wide range of products designed to meet the demands of various applications.

Cummins Engine Compatibility with Part 4944939

This Cummins part is designed to fit seamlessly within the engine systems of several Cummins engines. This hose is integral to maintaining the operational integrity of these engines by ensuring the proper flow of fluids and gases.

B3.3 Engines

For the B3.3 engines, the Plain Hose part 4944939 is specifically engineered to connect various components within the engine’s cooling and fuel systems. Its placement is critical for maintaining optimal engine performance and longevity.

QSB3.3 Engines

In the QSB3.3 engines, the Plain Hose part 4944939 serves a similar purpose, ensuring that the engine’s internal systems are properly connected. This hose is essential for the efficient operation of the engine’s cooling and lubrication systems, contributing to the overall reliability and efficiency of the QSB3.3 series.

QSB3.3 CM2150 Engines

The QSB3.3 CM2150 engines also benefit from the Plain Hose part 4944939. This part is designed to fit into the intricate network of hoses and pipes that manage the flow of fluids and gases within the engine. Its precise fit and durability make it a vital component for maintaining the engine’s performance and efficiency.

Role of Part 4944939 Plain Hose in Engine Systems

This part is an essential component in the efficient operation of several engine systems, particularly the breather and crankcase ventilation systems.

Breather System

In the breather system, the 4944939 Plain Hose facilitates the release of pressure build-up within the engine’s crankcase. As the engine operates, gases and vapors are produced, which need to be expelled to maintain optimal pressure levels. The hose connects to the breather valve, allowing these gases to escape while preventing external contaminants from entering the crankcase. This ensures that the engine operates smoothly and efficiently, reducing the risk of oil contamination and component wear.

Crankcase Ventilation System

Within the crankcase ventilation system, the 4944939 Plain Hose plays a significant role in managing the circulation of gases. It connects the crankcase to the intake manifold, enabling the re-circulation of blow-by gases back into the combustion process. This not only helps in reducing emissions but also ensures that the crankcase remains clean by preventing the accumulation of sludge and contaminants. The hose’s durable construction ensures it can withstand the varying pressures and temperatures within the engine compartment, contributing to the overall reliability of the ventilation system.

Conclusion

The Cummins 4944939 Plain Hose is a critical component in the maintenance and operation of commercial truck systems. Its design and features ensure efficient fluid transfer, contributing to the overall performance and longevity of the vehicle. Proper installation, maintenance, and adherence to safety precautions are essential for maximizing the benefits of this part. Additionally, considering the environmental impact of its use and disposal is important for sustainable practices in the automotive industry.


  1. Denton, T., & Pells, H. (2022). Automotive Technician Training, Second Edition. Routledge.

  2. Kasab, J., & Strzelec, A. (2020). Automotive Emissions Regulations and Exhaust Aftertreatment Systems. SAE International.

  3. Peters, G., & Peters, B. J. (2002). Automobile Vehicle Safety. CRC Press.

SPECIFICATIONS

Package Dimensions
9.0 x 12.0 x 3.0 in
Weight
0.05 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.