4980332
Fracture Resistant Screw
Cummins®

Fracture resistant screws are engineered to endure substantial stress without breaking, ensuring the durability and reliability of the components they secure. The 4980332 Fracture Resistant Screw by Cummins exemplifies this, specifically designed for commercial trucks. These screws are crucial for maintaining the structural integrity and operational efficiency of heavy-duty vehicles, which are exposed to demanding conditions and heavy loads.

Functionality of Fracture Resistant Screws

Fracture resistant screws are designed with enhanced material strength and specific features to resist breaking under stress. Typically made from high-tensile steel or advanced alloys, these screws offer superior strength and durability. Key material properties, such as tensile strength and yield strength, ensure they can withstand the dynamic loads and vibrations encountered in commercial truck operations. Design elements like thread pitch and head design are optimized to distribute stress evenly and prevent fatigue failure ¹.

Role in Truck Operation

The 4980332 Fracture Resistant Screw is used in various critical applications within a commercial truck, such as securing engine components, transmission parts, and chassis elements. Its role is to provide a reliable fastening solution that can endure the harsh operating environments typical of heavy-duty trucks. By maintaining secure connections, these screws help ensure the overall integrity and performance of the truck, contributing to safer and more efficient operations ².

Key Features

The 4980332 Fracture Resistant Screw features several attributes that enhance its performance and durability. Its material composition, often a high-tensile steel alloy, provides the necessary strength to resist fracture. The thread design is engineered to offer optimal grip and load distribution, minimizing the risk of loosening over time. Additionally, unique manufacturing processes, such as heat treatment and precision machining, are employed to further enhance the screw’s fracture resistance and overall reliability ³.

Benefits

Using fracture resistant screws like the 4980332 in heavy-duty applications offers several advantages. These screws contribute to increased safety by ensuring that critical components remain securely fastened, even under extreme conditions. They also help reduce maintenance costs by minimizing the need for frequent replacements due to failure. Furthermore, the enhanced longevity of truck components secured by these screws leads to improved overall vehicle performance and reliability.

Troubleshooting and Maintenance

To ensure the longevity and performance of fracture resistant screws, it is important to be aware of common issues and maintenance practices. Signs of wear or failure may include visible cracks, unusual loosening, or corrosion. Regular inspections and timely replacements can prevent potential failures. Proper installation techniques, including adhering to torque specifications, are crucial to maintain the integrity of the fastening. Following manufacturer guidelines for maintenance and inspection will help ensure the screws continue to perform reliably.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and related technologies. With a rich history of innovation and a strong commitment to quality, Cummins has established itself as a trusted name in the commercial vehicle industry. The company’s expertise in diesel engines and comprehensive approach to product development underscore its dedication to providing reliable and efficient power solutions for its customers.

Cummins Engine Compatibility with Part 4980332

The Cummins part 4980332, a Fracture Resistant Screw, is designed to fit a variety of Cummins engines. This screw is engineered to withstand the rigors of engine operation, providing durability and reliability. Below is a detailed look at the engines compatible with this part, grouped by engine series and model variations.

B Series Engines

• B4.5 CM2350 B104
• B4.5 CM2350 B129B

These engines utilize the 4980332 screw in various applications, ensuring structural integrity and operational efficiency.

F Series Engines

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F3.8 F102
• F4.5 CM2620 F139B
• F4.5 CM2620 F141C

The F series engines, both 3.8 and 4.5 liters, incorporate the 4980332 screw in critical areas to maintain the engine’s structural stability and performance.

ISF Series Engines

• ISF3.8 CM2220 AN
• ISF3.8 CM2220 F103
• ISF3.8 CM2350 F109
• ISF4.5 CM2220 F123

The ISF series engines, with their 3.8 and 4.5 liter configurations, also benefit from the use of the 4980332 screw, ensuring the longevity and reliability of the engine components.

QSF Series Engines

• QSF3.8 CM2350 F107
• QSF3.8 CM2880 F112

The QSF series engines, including both 3.8 and 8.0 liter variants, utilize the 4980332 screw in their construction, providing the necessary strength and durability for demanding applications.

This comprehensive compatibility ensures that the 4980332 Fracture Resistant Screw is a versatile and essential component for maintaining the integrity of various Cummins engine models.

Role of Part 4980332 Fracture Resistant Screw in Engine Systems

In the intricate dance of engine components, the 4980332 Fracture Resistant Screw plays a significant role in ensuring the smooth operation and longevity of various engine systems. This screw is specifically designed to withstand the immense stresses and vibrations that occur within an engine, making it an essential component in the following systems:

Damper System

The damper system is responsible for absorbing and reducing vibrations within the engine. The 4980332 screw secures the damper to the crankshaft, ensuring that it remains firmly in place despite the constant vibrations. This secure attachment is vital for the damper to effectively perform its function, thereby protecting other engine components from excessive wear and tear.

Vibration Control

Vibration is an inherent part of engine operation, but uncontrolled vibrations can lead to component failure and reduced engine efficiency. The 4980332 screw helps in maintaining the structural integrity of the components it connects, ensuring that vibrations are managed effectively. This contributes to a more stable and efficient engine performance.

Pulley System

In the pulley system, the 4980332 screw is used to attach the pulley to the crankshaft. This connection is subjected to significant rotational forces and vibrations. The fracture-resistant properties of the screw ensure that the pulley remains securely attached, allowing for the efficient transfer of power and reducing the risk of component detachment or failure.

Crankshaft Assembly

The crankshaft is a central component in the engine, converting linear motion into rotational motion. The 4980332 screw is instrumental in securing various attachments to the crankshaft, such as the damper and pulley. Its fracture-resistant design ensures that these connections remain intact under the high stresses and dynamic loads experienced during engine operation.

Conclusion

In summary, the 4980332 Fracture Resistant Screw is a key component in maintaining the integrity and efficiency of the damper, vibration control, pulley, and crankshaft systems within an engine. Its robust design and reliable performance make it an indispensable part in ensuring the smooth and durable operation of these critical engine components.