4938989
V Band Clamp
Cummins®

The Cummins V-Band Clamp 4938989 is a specialized component designed for use in commercial truck operations. It plays a significant role in ensuring the efficient and reliable functioning of various truck systems, particularly in exhaust applications. Understanding its purpose and functionality is key to maintaining optimal truck performance.

Basic Concepts of V-Band Clamps

V-Band Clamps are a type of fastening device used to connect two pipes or ducts together. They consist of a band that wraps around the pipes and a shell that compresses the band, creating a secure seal. These clamps are widely used in industrial and commercial settings due to their ease of installation, reliability, and efficiency in maintaining airtight connections ¹.

Purpose and Role in Truck Operations

In commercial truck operations, the V-Band Clamp 4938989 is primarily used in exhaust systems. It plays a role in securely connecting exhaust components, ensuring a tight seal that prevents leaks and maintains the efficiency of the exhaust system. This clamp is also utilized in other areas where a robust and reliable connection is required ².

Key Features

The V-Band Clamp 4938989 is characterized by its robust design and high-quality materials. It features a durable band and shell construction, often made from stainless steel, which enhances its resistance to corrosion and wear. The design allows for easy installation and removal, making it a practical choice for maintenance and repair tasks ³.

Benefits of Using V-Band Clamps

Using V-Band Clamps like the 4938989 offers several advantages in truck maintenance and operations. These include ease of installation, which reduces downtime during maintenance. They also provide a reliable seal, contributing to the overall efficiency of the truck’s systems. Additionally, their design allows for quick disconnection and reconnection, facilitating easier maintenance and repair processes.

Installation Process

Installing the V-Band Clamp 4938989 involves several steps. First, the pipes or ducts to be connected are aligned. The band is then placed around them, and the shell is positioned over the band. Using the appropriate tools, the shell is tightened, compressing the band and creating a secure seal. It is important to follow the manufacturer’s guidelines for torque settings to ensure a proper fit.

Maintenance and Troubleshooting

Regular maintenance of the V-Band Clamp 4938989 is important to ensure its longevity and optimal performance. This includes checking for signs of wear or corrosion and ensuring that the clamp remains securely fastened. Common issues may include leaks or a loose connection, which can often be addressed by re-tightening the clamp or replacing worn components.

Compatibility and Applications

The V-Band Clamp 4938989 is designed for use in a variety of commercial truck applications, particularly in exhaust systems. It is compatible with a range of pipe and duct sizes, making it a versatile component for different truck models and systems.

Safety Considerations

When installing, maintaining, or troubleshooting the V-Band Clamp 4938989, it is important to observe safety guidelines. This includes wearing appropriate personal protective equipment, ensuring the truck is properly secured and the engine is off during maintenance, and following all manufacturer instructions to prevent injury or damage.

Cummins: A Brief Overview

Cummins Inc. is a well-established company in the commercial truck industry, known for its range of high-quality diesel engines and components. With a history of innovation and a commitment to reliability, Cummins products, including the V-Band Clamp 4938989, are trusted by professionals in the trucking industry for their performance and durability.

V-Band Clamp 4938989 Compatibility with Cummins Engines

The V-Band Clamp part number 4938989, manufactured by Cummins, is a versatile component designed to fit a variety of Cummins engines. This clamp is essential for securing hoses and pipes, ensuring a tight and leak-proof connection.

B4.5 Series

• B4.5 CM2350 B129B
• B4.5 RGT
• ISB/ISD4.5 CM2150 B119
• ISB4.5 CM2350 B104

The V-Band Clamp 4938989 is compatible with the B4.5 series engines, providing a reliable sealing solution for various applications within these models.

B6.7 Series

• B6.7 CM2670 B164C
• ISB/ISD6.7 CM2150 SN
• QSB6.7 CM850 (CM2850)
• QSB6.7 M CM2250

This clamp is also suitable for the B6.7 series engines, ensuring a secure fit for hoses and pipes in these larger displacement engines.

F3.8 Series

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• ISF3.8 CM2220 AN
• ISF3.8 CM2350 F109

The V-Band Clamp 4938989 is designed to fit the F3.8 series engines, offering a dependable sealing solution for these models.

ISB3.9 Series

• ISB3.9 CM2220 B107

This clamp is compatible with the ISB3.9 series engine, providing a secure connection for hoses and pipes.

ISB4.5 Series

• ISB4.5 CM2350 B104

The V-Band Clamp 4938989 fits the ISB4.5 series engine, ensuring a tight seal for various applications.

ISBE Series

• ISBE CM2150
• ISBE4 CM850

This clamp is suitable for the ISBE series engines, providing a reliable sealing solution.

ISF3.8 Series

• ISF3.8 CM2220 AN
• ISF3.8 CM2350 F109

The V-Band Clamp 4938989 is compatible with the ISF3.8 series engines, ensuring a secure fit for hoses and pipes.

ISF4.5 Series

• ISF4.5 CM2220 F123

This clamp is designed to fit the ISF4.5 series engine, providing a dependable sealing solution.

QSB4.5 Series

• QSB4.5 CM850 (CM2850)

The V-Band Clamp 4938989 is compatible with the QSB4.5 series engine, ensuring a secure connection for hoses and pipes.

QSB6.7 Series

• QSB6.7 CM850 (CM2850)
• QSB6.7 M CM2250

This clamp is suitable for the QSB6.7 series engines, providing a reliable sealing solution.

QSB7 Series

• QSB7 CM2880 B117

The V-Band Clamp 4938989 fits the QSB7 series engine, ensuring a secure connection for hoses and pipes.

QSF3.8 Series

• QSF3.8 CM2880 F112

This clamp is designed to fit the QSF3.8 series engine, providing a dependable sealing solution.

The V-Band Clamp 4938989 is a critical component for maintaining the integrity of hose and pipe connections in these Cummins engines, ensuring optimal performance and reliability.

Component Usage

The V-Band Clamp 4938989 is instrumental in ensuring secure and efficient connections within various engine systems. Its application spans across multiple components, enhancing both performance and reliability.

Turbocharger Connection

In turbocharger systems, the V-Band Clamp plays a significant role in connecting the turbocharger to the exhaust and intake manifolds. This secure fitting ensures that the high-pressure exhaust gases are efficiently channeled to the turbine, driving the compressor side of the turbocharger. The clamp’s design allows for easy installation and removal, facilitating maintenance and upgrades without compromising the seal integrity.

Air Intake Arrangement

Within the air intake system, the V-Band Clamp is used to connect the air filter housing to the intake manifold. This connection is vital for maintaining a sealed pathway for the air entering the engine. The clamp’s ability to provide a tight seal prevents air leaks, which can otherwise lead to inefficient combustion and reduced engine performance. Additionally, it allows for straightforward adjustments and replacements, ensuring the air intake system remains optimal.

Device Integration

For various engine devices, such as intercoolers or emissions control systems, the V-Band Clamp is employed to create robust connections. These devices often require precise and secure fittings to function correctly. The clamp ensures that there are no leaks in the system, maintaining the efficiency and effectiveness of these components. Its versatility makes it suitable for a wide range of applications, from performance enhancements to regulatory compliance.

Air Shutdown System

In air shutdown systems, which are designed to cut off the air supply to the engine in emergency situations, the V-Band Clamp ensures that the connections remain intact under varying conditions. This is particularly important in high-stress environments where vibrations and thermal expansions can challenge the integrity of the connections. The clamp’s design accommodates these stresses, providing a reliable solution for safety-critical applications.

Conclusion

Overall, the V-Band Clamp 4938989 is a versatile and essential component in modern engine systems, facilitating secure and efficient connections across a variety of applications. Its robust design, ease of installation, and reliable sealing capabilities make it a valuable asset in maintaining the performance and reliability of commercial truck operations.