3920719
Hose Clamp
Cummins®

Introduction

The Cummins Hose Clamp 3920719 is a specialized component designed for use in commercial truck maintenance. It plays a role in securing hoses within various fluid systems, contributing to the integrity and efficiency of these systems. Its design and construction are tailored to meet the demanding requirements of heavy-duty applications, enhancing the reliability and performance of commercial trucks.

Basic Concepts of Hose Clamps

Hose clamps are mechanical devices used to secure hoses to fittings, ensuring a tight seal that prevents leaks in fluid systems. They are integral to the operation of systems that transport fluids such as coolant, fuel, and hydraulic fluid. In commercial trucks, hose clamps must withstand high pressures and temperatures, making durability and reliability paramount. Common types of hose clamps include worm drive, spring, and screw-type clamps, each offering different levels of adjustability and clamping force ¹.

Purpose of the Cummins Hose Clamp 3920719

The Cummins Hose Clamp 3920719 is specifically engineered to secure hoses in various fluid systems within commercial trucks. It is applied in systems that require a secure and leak-proof connection, such as coolant, fuel, and hydraulic lines. By providing a consistent and reliable clamping force, it ensures that hoses remain firmly attached to their fittings, maintaining the integrity of the fluid system and preventing leaks that could lead to system failure or inefficiency ².

Key Features

The Cummins Hose Clamp 3920719 boasts several key features that enhance its performance and reliability. It is constructed from high-quality materials that offer superior resistance to corrosion and wear, ensuring longevity in harsh operating environments. Its design includes elements that facilitate easy installation and adjustment, allowing for a secure fit on a variety of hose sizes. Additionally, the clamp features a unique band design that distributes clamping force evenly around the hose, minimizing the risk of damage to the hose and ensuring a tight seal ³.

Benefits

Utilizing the Cummins Hose Clamp 3920719 offers several advantages. Its design contributes to improved seal integrity, reducing the likelihood of leaks in critical fluid systems. The ease of installation and adjustment simplifies maintenance procedures, allowing for quick and efficient repairs or replacements. Furthermore, its durability and resistance to environmental factors ensure reliable performance over the long term, making it a cost-effective solution for commercial truck maintenance.

Installation Process

Proper installation of the Cummins Hose Clamp 3920719 is crucial for ensuring a secure and leak-proof connection. The process involves selecting the appropriate clamp size for the hose, positioning the clamp around the hose and fitting, and tightening it to the recommended torque specification using the appropriate tools. Best practices include ensuring the clamp is evenly tightened around the hose to avoid damaging the hose or creating an uneven seal.

Troubleshooting Common Issues

Common issues with hose clamps, such as leaks or improper sealing, can often be traced back to incorrect installation or wear and tear. Troubleshooting steps include checking the clamp for proper tightness and even distribution around the hose, inspecting the hose for damage, and ensuring the fitting is clean and free of debris. Replacing worn or damaged clamps and hoses as needed can prevent leaks and maintain system integrity.

Maintenance Tips

Regular maintenance checks are recommended to ensure the longevity and reliable performance of the Cummins Hose Clamp 3920719. This includes periodic inspection for signs of wear, corrosion, or damage, and ensuring that the clamp remains securely tightened. Cleaning the clamp and fitting area can prevent debris from interfering with the seal. Following these maintenance practices can help avoid unexpected failures and extend the service life of the clamp and associated fluid systems.

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 a reputation for quality, reliability, and innovation in the commercial truck industry. Its extensive product range includes engines, powertrain components, and aftermarket parts, all designed to meet the demanding requirements of heavy-duty applications.

Cummins Engine Compatibility with Hose Clamp Part 3920719

The Cummins Hose Clamp part number 3920719 is designed to fit a variety of Cummins engines, ensuring a secure and reliable connection for various fluid lines and hoses. Below is a detailed overview of the compatibility of this part with the listed engine models:

Compatible Engines

• 4B3.9
• 6B5.9
• 6C8.3
• B5.9 G
• B5.9 GAS PLUS CM556
• C GAS PLUS CM556
• C8.3 G
• G8.3
• G855
• ISB CM550
• ISBE CM800
• ISD4.5 CM2220 D108
• ISM CM570
• ISM11 CM876 SN
• QSB4.5 CM2250 EC
• QSB6.7 CM2250
• QSK19G
• QSM11 CM570

Grouping of Compatible Engines

Group 1: B Series Engines

• 4B3.9
• 6B5.9
• B5.9 G
• B5.9 GAS PLUS CM556

Group 2: C Series Engines

• 6C8.3
• C GAS PLUS CM556
• C8.3 G

Group 3: G Series Engines

• G8.3
• G855

Group 4: ISB and ISBE Engines

• ISB CM550
• ISBE CM800

Group 5: ISD Engines

• ISD4.5 CM2220 D108

Group 6: ISM and ISM11 Engines

• ISM CM570
• ISM11 CM876 SN

Group 7: QSB Engines

• QSB4.5 CM2250 EC
• QSB6.7 CM2250

Group 8: QSK and QSM Engines

• QSK19G
• QSM11 CM570

This comprehensive compatibility ensures that the Hose Clamp part number 3920719 can be used across a wide range of Cummins engines, providing a versatile solution for securing hoses and lines.

Role of Part 3920719 Hose Clamp in Engine Systems

The Part 3920719 Hose Clamp is a component in ensuring the secure and efficient operation of various engine systems. Its application spans across multiple critical areas, enhancing the reliability and performance of the engine.

Air Fuel Control Tube

In the air fuel control system, the Hose Clamp secures the air fuel control tube, maintaining a tight seal that prevents leaks and ensures consistent air-fuel mixture delivery to the engine. This is vital for optimal combustion and engine efficiency.

Charge Air Bypass

For the charge air bypass system, the Hose Clamp is used to secure connections, allowing regulated airflow bypass when necessary. This helps in managing engine load and maintaining performance under varying conditions.

Breather and Crankcase Ventilation

In breather and crankcase ventilation systems, the Hose Clamp ensures that hoses remain firmly attached, facilitating the release of pressure and contaminants from the crankcase. This is important for maintaining engine health and longevity.

Campaign Kit and Connection Points

Within campaign kits, which often include various hoses and fittings for engine upgrades or repairs, the Hose Clamp plays a role in securing connections. This ensures that all components within the kit function as intended, enhancing overall engine performance.

Air Intake and Fuel Return Mounting

The Hose Clamp is utilized in air intake systems to secure hoses that deliver air to the engine, ensuring a steady airflow. Similarly, in fuel return systems, it maintains the integrity of connections, allowing for efficient fuel management and return.

Housing and Thermostat

In housing units, particularly those involving the thermostat, the Hose Clamp secures hoses that circulate coolant. This is essential for temperature regulation and preventing engine overheating.

Injector Fuel Supply Tube and Plumbing

For injector fuel supply tubes and associated plumbing, the Hose Clamp ensures that fuel lines are securely connected. This is important for consistent fuel delivery to injectors, which is critical for engine performance.

Turbocharger and Radiator Systems

In turbocharger plumbing, the Hose Clamp secures hoses that manage airflow and pressure, enhancing turbocharger efficiency. Similarly, in radiator systems, it ensures that coolant hoses are firmly attached, aiding in effective heat dissipation and engine cooling.

Vent and Engine Coolant Systems

Lastly, in vent systems and engine coolant circuits, the Hose Clamp secures various hoses, ensuring that vents operate correctly and coolant flows smoothly. This is essential for maintaining engine temperature and preventing system failures.

Overall, the Part 3920719 Hose Clamp is a versatile component that enhances the functionality and reliability of numerous engine systems by ensuring secure and leak-free connections.

Conclusion

The Cummins Hose Clamp 3920719 is a critical component in the maintenance and operation of commercial trucks, offering a reliable solution for securing hoses in various fluid systems. Its design, featuring high-quality materials and a unique band design, ensures durability, easy installation, and a tight seal. The clamp’s compatibility with a wide range of Cummins engines further enhances its versatility and effectiveness in maintaining the integrity and efficiency of engine systems.