4995851
Hump Hose
Cummins®

Introduction

The Cummins 4995851 Hump Flex Hose is a component designed for use in heavy-duty truck systems. It serves a specific role within the exhaust system, facilitating the efficient management of exhaust flow. This hose is engineered to withstand the demanding conditions present in heavy-duty applications, ensuring reliable performance and durability ².

Purpose and Function

The Cummins 4995851 Hump Flex Hose is positioned within the exhaust system of a truck, connecting various components to allow for the smooth flow of exhaust gases. Its primary function is to provide a flexible connection that accommodates the movement and vibrations inherent in heavy-duty truck operations. By managing exhaust flow effectively, it contributes to the overall efficiency and performance of the truck’s engine ¹.

Key Features

The Cummins 4995851 Hump Flex Hose boasts several key features that enhance its functionality and durability. Its flexible design allows it to absorb vibrations and movements, reducing stress on connected components. The hose is constructed from high-quality materials that offer resistance to high temperatures and pressures commonly encountered in exhaust systems. Additionally, its robust construction ensures longevity and reliable performance under demanding conditions.

Benefits

The benefits of using the Cummins 4995851 Hump Flex Hose include improved durability, enhanced flexibility, and superior resistance to high temperatures and pressures. These attributes contribute to the hose’s ability to maintain optimal performance over time, reducing the likelihood of failures and the need for frequent replacements. The flexibility of the hose also aids in accommodating the dynamic movements within the exhaust system, further enhancing its durability and effectiveness.

Installation and Compatibility

Proper installation of the Cummins 4995851 Hump Flex Hose is crucial for ensuring its optimal performance and longevity. Installation guidelines should be followed to ensure that the hose is securely connected and properly positioned within the exhaust system. Compatibility with various truck models and engine types should be verified to ensure seamless integration and functionality.

Maintenance and Troubleshooting

To ensure the longevity and optimal performance of the Cummins 4995851 Hump Flex Hose, regular maintenance is recommended. This includes periodic inspections for signs of wear, damage, or leaks. Common issues that may arise include hose degradation due to exposure to high temperatures or physical damage from road debris. Troubleshooting steps may involve replacing damaged sections or ensuring proper installation to address any performance issues.

Performance Impact

The Cummins 4995851 Hump Flex Hose plays a role in the overall performance of the truck’s exhaust system by facilitating efficient exhaust flow and reducing emissions. Its durable construction and flexible design contribute to maintaining engine efficiency and controlling emissions, ensuring that the truck operates within regulatory standards ².

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel engines and components. With a history spanning over a century, Cummins has established itself as a trusted name in the automotive industry, particularly in the production of diesel engines and related components. The company’s commitment to innovation and quality has made it a preferred choice for heavy-duty truck applications.

Hump Flex Hose (Part 4995851) Compatibility with Cummins Engines

The Hump Flex Hose, identified by part number 4995851, is a versatile component designed to fit seamlessly with several Cummins engine models. This part is engineered to provide flexibility and durability, ensuring efficient operation and longevity in various engine configurations.

QSB5.9 CM850 and QSB6.7 M CM2250

The Hump Flex Hose is compatible with both the QSB5.9 CM850 and QSB6.7 M CM2250 engines. These engines are known for their robust performance and reliability, often used in a variety of applications ranging from agricultural machinery to industrial equipment. The flex hose ensures that the engine’s cooling and exhaust systems maintain optimal performance by accommodating the natural movements and vibrations of the engine.

QSC8.3 CM850 (CM2850)

The QSC8.3 CM850 (CM2850) engine also benefits from the Hump Flex Hose. This engine is typically employed in heavy-duty applications, such as construction and mining equipment, where durability and power are paramount. The flex hose in this context helps to mitigate stress on the engine’s connections, reducing the risk of leaks and ensuring consistent performance under demanding conditions.

QSM11 CM570

The QSM11 CM570 engine is another model that integrates well with the Hump Flex Hose. This engine is often utilized in medium-duty applications, including transportation and logistics. The flex hose’s design allows for smooth operation, accommodating the engine’s movements and contributing to the overall efficiency and reliability of the engine system.

Role of Part 4995851 Hump Flex Hose in Engine Systems

The 4995851 Hump Flex Hose is an essential component in the integration of various engine systems, particularly in the management and regulation of exhaust flow. This hose facilitates a secure and flexible connection between the exhaust manifold and the exhaust outlet.

Its primary function is to accommodate the thermal expansion and contraction that occur within the exhaust system due to the high temperatures generated during engine operation. By providing a flexible yet durable link, the Hump Flex Hose ensures that the connection remains intact and efficient, even as the components around it shift slightly due to heat.

Additionally, the Hump Flex Hose plays a significant role in reducing vibrations and noise that are inherent in the exhaust system. Its flexible design absorbs some of the vibrations produced by the engine, which helps in maintaining the overall stability and quiet operation of the engine system.

Conclusion

In summary, the Cummins 4995851 Hump Flex Hose is a critical component that enhances the functionality and durability of various Cummins engines, including the QSB5.9 CM850, QSB6.7 M CM2250, QSC8.3 CM850 (CM2850), and QSM11 CM570. Its compatibility across these models underscores its importance in maintaining the integrity and performance of the engine systems. The hose’s role in managing exhaust flow, accommodating thermal expansion, and reducing vibrations ensures the efficient and reliable operation of the exhaust system, contributing to the overall performance and longevity of the engine.