4934142
Hexagon Head Cap Screw
Cummins®

The Cummins 4934142 Hexagon Head Cap Screw is a specialized fastener designed for use in commercial trucks. This part plays a significant role in the maintenance and operation of trucks, ensuring that components are securely fastened and that the vehicle operates efficiently.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is a type of fastener characterized by its hexagonal head, which allows for easy tightening and loosening using a wrench or socket. The design of the cap screw includes a threaded shaft that engages with internal threads in the material being fastened, providing a strong and secure connection. Cap screws are commonly used in fastening applications across various industries, including automotive, due to their reliability and ease of use ¹.

Purpose and Role in Truck Operation

This Cummins part is specifically designed for use in commercial trucks. It contributes to the assembly and maintenance of truck components by providing a secure fastening solution. This screw is often used in applications where high strength and resistance to vibration are required, ensuring that critical components remain securely attached during operation ².

Key Features

The 4934142 features a robust design that includes a high-quality material composition, typically a grade of steel that offers excellent strength and durability. The screw has a specific thread type that ensures a tight and secure fit, and it may include unique design elements such as a countersunk head for flush mounting or a coating to enhance corrosion resistance.

Benefits

Using the 4934142 offers several benefits. Its design provides improved fastening strength, making it suitable for applications where high loads are present. The screw’s resistance to vibration helps maintain a secure connection over time, reducing the need for frequent re-tightening. Additionally, the hexagonal head allows for easy installation and removal, facilitating maintenance procedures.

Installation and Usage Guidelines

Proper installation of the 4934142 involves several steps to ensure a secure fastening. Begin by aligning the screw with the designated hole in the component. Use a wrench or socket to tighten the screw gradually, applying even pressure to avoid cross-threading. Torque specifications should be followed to achieve the correct tension without over-tightening, which could damage the screw or the component.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws include loosening due to vibration or corrosion. To troubleshoot, inspect the screw and surrounding components for signs of wear or damage. If corrosion is present, cleaning the affected area and applying a corrosion-resistant coating can help. Regular maintenance, such as periodic re-tightening and inspection, can prolong the life of the screw and ensure continued reliable performance.

Cummins: A Brief Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its commitment to quality and innovation. The company has a long history of producing reliable and high-performance truck components, including fasteners like the 4934142. Cummins’ dedication to excellence ensures that their products meet the demanding requirements of commercial truck applications ³.

Cummins Engine Compatibility with Part 4934142

The Cummins part 4934142, a Hexagon Head Cap Screw, is a critical component in the assembly and maintenance of several Cummins engine models. This screw is designed to provide secure fastening in various applications within the engine systems. Here is a detailed look at its compatibility across different engine models:

B3.3 Series

The B3.3 engine series benefits from the use of the Hexagon Head Cap Screw 4934142 in multiple applications. This screw is integral in securing various engine components, ensuring the engine’s structural integrity and operational efficiency.

QSB3.3 Series

The QSB3.3 engines, including the CM2150 and CM2250 EC variants, utilize the 4934142 screw in several key areas. This screw is essential in fastening parts that require precise alignment and secure attachment, contributing to the engine’s overall performance and longevity.

QSB4.5 Series

In the QSB4.5 CM2250 EC engine, the 4934142 screw is used in critical applications where high strength and durability are required. Its design ensures that components remain tightly fastened under varying operational conditions, enhancing the engine’s reliability.

QSB6.7 Series

The QSB6.7 CM850 (CM2850) engine incorporates the 4934142 screw in various structural and functional applications. This screw’s robust design is crucial for maintaining the integrity of components subjected to significant stress and load.

QSB7 Series

Finally, the QSB7 CM2880 B117 engine also relies on the 4934142 screw for several key fastening applications. Its use in this engine model ensures that critical components are securely held in place, contributing to the engine’s overall performance and durability.

By integrating the 4934142 Hexagon Head Cap Screw into these diverse engine models, Cummins ensures that each engine operates with the precision and reliability expected from their high-quality products.

Role of Part 4934142 Hexagon Head Cap Screw in Engine Systems

The 4934142 Hexagon Head Cap Screw is integral to the secure assembly and operation of various engine components. Its primary function is to provide a robust and reliable fastening solution that ensures components remain firmly in place under the demanding conditions of engine operation.

Connection Points

At connection points throughout the engine, the 4934142 Hexagon Head Cap Screw plays a significant role. It is often used to fasten brackets, mounts, and other structural elements that support critical engine components. These connections must withstand vibrations and thermal expansions, making the reliability of the fastening method essential.

Exhaust Outlet

In the exhaust system, the 4934142 Hexagon Head Cap Screw is employed to secure the exhaust outlet to the engine block or manifold. This ensures that the exhaust gases are directed efficiently away from the engine, contributing to the overall performance and emissions control of the vehicle.

Filter Assemblies

For filter assemblies, such as the full flow oil filter, the 4934142 Hexagon Head Cap Screw is used to attach the filter housing to the engine. This secure attachment is vital for maintaining the integrity of the filtration system, ensuring clean oil circulates through the engine to reduce wear and enhance longevity.

Harness and Wiring

In the electrical domain, the 4934142 Hexagon Head Cap Screw is utilized to mount harnesses and secure electronic control module (ECM) wiring. This is particularly important in modern engines where precise electronic control is necessary for optimal performance and efficiency. Secure wiring prevents issues such as short circuits or disconnections that could lead to engine malfunctions.

Full Flow Oil System

Within the full flow oil system, the 4934142 Hexagon Head Cap Screw helps in attaching various components such as oil galleries, passages, and sensors. This ensures that the oil flow is uninterrupted and that all parts of the engine receive the necessary lubrication to operate smoothly.

Conclusion

In summary, the 4934142 Hexagon Head Cap Screw is a versatile and reliable fastening solution that contributes to the secure and efficient operation of multiple engine systems. Its application across different components underscores its importance in maintaining the structural integrity and functional performance of the engine.