3944152
Studded Flange Cap Screw
Cummins®

The Studded Flange Cap Screw, Part #3944152, manufactured by Cummins, is a specialized fastener designed for heavy-duty truck applications. Cummins, a renowned name in the automotive industry, is known for its commitment to quality and innovation. This particular screw is significant in ensuring the secure attachment and integrity of various truck components, contributing to the overall reliability and performance of heavy-duty vehicles.

Basic Concepts

A Studded Flange Cap Screw is a type of fastener that includes a threaded stud and a flanged head. The stud is designed to be inserted through holes in the components being joined, while the flange provides a broad surface area for distribution of clamping force. This screw functions by securing components together under tension, which is important for maintaining the structural integrity and alignment of truck parts.

Purpose and Role

The 3944152 Studded Flange Cap Screw plays a role in truck operations by securing and maintaining the integrity of various components. It is used in applications where high tensile strength and resistance to vibration are required. By providing a secure connection, it helps in ensuring that parts remain firmly in place, which is vital for the safe and efficient operation of heavy-duty trucks.

Key Features

The 3944152 Studded Flange Cap Screw is characterized by several key features that enhance its performance and durability. It is made from high-strength materials, ensuring it can withstand the rigors of heavy-duty use. The design includes a studded end for secure threading and a flanged head for distributing clamping force effectively. Additionally, it may feature specialized coatings or treatments to improve corrosion resistance and longevity.

Benefits

The use of the 3944152 Studded Flange Cap Screw offers several benefits. It provides improved reliability by ensuring that components are securely fastened, which is particularly important in the demanding environments of heavy-duty trucks. Enhanced safety is another benefit, as secure fastening reduces the risk of component failure during operation. Additionally, the durability of this screw can lead to potential cost savings for fleet operators by reducing the frequency of replacements and maintenance.

Installation Process

Proper installation of the 3944152 Studded Flange Cap Screw involves several steps to ensure effectiveness and longevity. Begin by aligning the screw with the designated holes in the components. Insert the stud through the holes and use a compatible tool to tighten the screw to the manufacturer’s specified torque settings. It is important to avoid over-tightening, which can lead to damage, and to ensure that the flange is seated properly against the component surface. Regular checks post-installation can help verify that the screw remains secure.

Troubleshooting and Maintenance

Common issues with the 3944152 Studded Flange Cap Screw may include loosening due to vibration or corrosion. Regular inspections are recommended to identify any signs of wear or damage. If loosening is detected, re-tightening to the specified torque is necessary. In cases of corrosion, cleaning the screw and applying a protective coating can help prevent further degradation. Maintenance practices should include periodic checks and re-torquing as needed to ensure ongoing performance.

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 automotive industry. The company’s commitment to excellence is reflected in its wide range of products, including the 3944152 Studded Flange Cap Screw, which is designed to meet the high standards required for heavy-duty truck applications.

Studded Flange Cap Screw 3944152 in Cummins Engines

The Studded Flange Cap Screw 3944152, manufactured by Cummins, is a component in various Cummins engine models. This part is designed to secure flanges and other components, ensuring the structural integrity and operational efficiency of the engine. Below is a detailed description of how this part fits into different Cummins engine models.

B5.9 Series

• B5.9 CM2670
• QSB5.9 CM2880 B139

The Studded Flange Cap Screw 3944152 is used in the B5.9 series engines to secure various flanges, ensuring that connections remain tight and leak-free. This is particularly important in maintaining the engine’s cooling and exhaust systems.

C Series

• C GAS PLUS CM556

In the C GAS PLUS CM556 engine, this screw is utilized to fasten components that require a robust connection, such as exhaust manifolds and other critical parts.

F3.8 Series

• F3.8 CM2350 F128C
• QSF3.8 CM2350 F107

For the F3.8 series engines, the Studded Flange Cap Screw 3944152 is essential in securing the flanges of the exhaust system and other critical components, ensuring the engine operates efficiently and safely.

ISB Series

• ISB5.9 CM2880 B127
• ISZ13 CM2150 Z105

In the ISB series engines, this screw is used to fasten various flanges, including those in the exhaust and cooling systems. The robust design of the screw ensures that these connections remain secure under high stress and temperature conditions.

ISC Series

• ISC CM554

The ISC CM554 engine utilizes the Studded Flange Cap Screw 3944152 to secure flanges in the exhaust system, ensuring that the engine maintains optimal performance and reliability.

ISL Series

• ISL CM554

Similar to the ISC series, the ISL CM554 engine uses this screw to fasten flanges in the exhaust system, providing a reliable and secure connection.

ISX Series

• ISX12 G CM2180 EJ
• ISX12/ISX11.9 CM2250
• ISX15 CM2250
• ISX15 CM2250 SN
• ISX15 CM2350 X101

In the ISX series engines, the Studded Flange Cap Screw 3944152 is used to secure various flanges, including those in the exhaust and cooling systems. This screw is crucial for maintaining the structural integrity of these high-performance engines.

QSC Series

• QSC8.3 CM554

The QSC8.3 CM554 engine uses this screw to secure flanges in the exhaust system, ensuring the engine operates efficiently.

QSL Series

• QSL9 CM554

In the QSL9 CM554 engine, the Studded Flange Cap Screw 3944152 is used to fasten flanges in the exhaust system, providing a secure and reliable connection.

QST Series

• QST30 CM2350 T101
• QST30 CM552

The QST series engines utilize this screw to secure flanges in the exhaust system, ensuring the engine maintains optimal performance.

QSX Series

• QSX11.9 CM2250 ECF
• QSX15 CM2250
• QSX15 CM2250 ECF
• QSX15 CM2350 X105

In the QSX series engines, the Studded Flange Cap Screw 3944152 is used to secure various flanges, including those in the exhaust and cooling systems. This screw is essential for maintaining the structural integrity of these engines.

X13 and X15 Series

• X13 CM2670 X122B
• X15 CM2350 X116B
• X15 CM2350 X123B

The X13 and X15 series engines use the Studded Flange Cap Screw 3944152 to secure flanges in the exhaust system, ensuring the engine operates efficiently and reliably.

Role of Part 3944152 Studded Flange Cap Screw in Engine Systems

The 3944152 studded flange cap screw is an integral component in various engine systems, ensuring secure and reliable connections across multiple assemblies. Its application spans several key areas within the engine, contributing to the overall performance and integrity of the system.

Oil Fill and Breather Systems

In the oil fill and breather systems, the 3944152 screw is utilized to fasten the breather cover to the crankcase. This secure attachment is vital for maintaining the proper ventilation of the crankcase, which is essential for the efficient operation of the engine. The screw ensures that the breather cover remains firmly in place, preventing oil leaks and maintaining the correct pressure within the crankcase.

Camshaft and Cam Follower Assemblies

Within the camshaft and cam follower assemblies, the 3944152 screw plays a significant role in securing the camshaft cover. This cover protects the camshaft and cam followers from debris and contaminants, ensuring smooth operation and longevity of these components. The screw’s robust design provides the necessary tension to keep the cover tightly sealed, which is essential for the precise functioning of the camshaft system.

Fuel Pump and Fuel System Components

In the fuel pump and associated fuel system components, the 3944152 screw is employed to secure the fuel pump housing to the engine block. This connection is critical for maintaining the structural integrity of the fuel pump, ensuring it operates within the specified parameters. The screw also helps in securing the fuel pump coupling and the fuel transfer components, contributing to a reliable fuel delivery system.

Electronic Control Module and Wiring

For the electronic control module (ECM) and its associated wiring, the 3944152 screw is used to fasten the ECM housing to the engine. This secure attachment is important for protecting the sensitive electronic components from vibrations and environmental factors. Additionally, it ensures that the wiring harness remains organized and protected, which is essential for the proper functioning of the engine control system.

Exhaust Recirculation and Plumbing Systems

In the exhaust recirculation and plumbing systems, the 3944152 screw is utilized to secure various components such as the exhaust recirculation air module and fuel drain plumbing. This ensures that these systems are tightly integrated into the engine, preventing leaks and ensuring efficient operation. The screw’s application in these systems helps maintain the structural integrity and performance of the engine.

Thermostat and Heat Shield Assemblies

The 3944152 screw is also crucial in securing the thermostat housing and heat shield assemblies. By providing a strong and reliable connection, it ensures that these components remain in place, contributing to the efficient management of engine temperature and protection from heat-related damage.

Overall, the 3944152 studded flange cap screw is a versatile and essential component in various engine systems, ensuring secure and reliable connections that contribute to the engine’s performance and durability.

Conclusion

The 3944152 Studded Flange Cap Screw is a critical component in heavy-duty truck applications, providing secure and reliable connections across various engine systems. Its robust design, high-strength materials, and specialized coatings contribute to its durability and performance in demanding environments. Proper installation and maintenance are essential to ensure the longevity and effectiveness of this Cummins part. By understanding its role and benefits, fleet operators and technicians can better appreciate the importance of this screw in maintaining the reliability and safety of heavy-duty vehicles.