137876
Hexagon Head Cap Screw
Cummins®

The Hexagon Head Cap Screw is a fundamental component in commercial truck maintenance, offering reliable fastening solutions across various applications. Manufactured by Cummins, a reputable name in the industry, the Hexagon Head Cap Screw part number 137876 is designed to meet the rigorous demands of truck operations. This part is integral to ensuring the structural integrity and functionality of truck assemblies, playing a significant role in the maintenance and repair of commercial vehicles.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is characterized by its hexagonal head, which allows for efficient tightening and loosening using standard tools such as wrenches or sockets. The design of the cap screw, with its threaded shaft and head, enables it to securely fasten materials together. Cap screws are widely used across industries for their strength and reliability in joining components, making them indispensable in applications where durability and stability are paramount ¹.

Purpose of the 137876 Hexagon Head Cap Screw in Truck Operations

The 137876 Hexagon Head Cap Screw serves a specific function in the operation and maintenance of commercial trucks. It is employed in various truck assemblies where secure fastening is required to withstand the stresses and vibrations encountered during operation. Common applications include securing engine components, attaching body panels, and fastening chassis parts. The screw’s design ensures a tight and durable connection, contributing to the overall reliability of the truck ².

Key Features of the 137876 Hexagon Head Cap Screw

The 137876 Hexagon Head Cap Screw boasts several key features that enhance its functionality and durability. Crafted from high-quality materials, it offers superior strength and resistance to wear and tear. The screw features a specific thread type that ensures a secure fit, while its hexagonal head design facilitates easy installation and removal with standard tools. These features collectively contribute to the screw’s ability to perform under the demanding conditions of truck operations ³.

Benefits of Using the 137876 Hexagon Head Cap Screw

Utilizing the 137876 Hexagon Head Cap Screw in truck maintenance offers several advantages. Its enhanced strength ensures a secure connection between components, reducing the risk of failure under stress. The screw’s corrosion resistance prolongs its lifespan, even in harsh operating environments. Additionally, its compatibility with standard tools simplifies the installation and maintenance process, making it a practical choice for truck operators and maintenance professionals ⁴.

Installation and Usage Guidelines

Proper installation of the 137876 Hexagon Head Cap Screw is crucial for ensuring a secure fit and maximizing its performance. Begin by selecting the appropriate size and type of screw for the application. Use a wrench or socket to tighten the screw to the recommended torque specifications, ensuring a snug fit without over-tightening, which could damage the screw or the components being fastened. Follow best practices for installation to achieve a reliable connection.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws may include loosening over time due to vibration or corrosion. Regular inspection and maintenance can help identify and address these issues before they lead to more significant problems. If a screw becomes loose, it should be re-tightened to the specified torque. In cases of corrosion, the affected screw may need to be replaced to ensure continued reliable performance. Adhering to maintenance schedules and guidelines can prolong the lifespan of the screws and enhance the overall reliability of the truck.

Cummins: Manufacturer Overview

Cummins Inc. is a globally recognized leader in the commercial truck industry, known for its innovative engine and power generation technologies. With a rich history of providing high-quality components and a broad product range, Cummins has established a reputation for excellence and reliability. The company’s commitment to quality and performance makes it a trusted source for truck components, including the 137876 Hexagon Head Cap Screw. Cummins’ expertise in the industry ensures that its products meet the stringent demands of commercial truck operations.

Cummins Part 137876 Hexagon Head Cap Screw in Engine Applications

The Cummins part 137876, a Hexagon Head Cap Screw, is integral to the assembly and operation of several Cummins engines. This part is utilized in the K19, N14 CELECT PLUS, QSK19 CM850 MCRS, and QSN14 CM876 N103 engines, playing a crucial role in securing various components within these engines.

K19 and N14 CELECT PLUS Engines

In the K19 and N14 CELECT PLUS engines, the Hexagon Head Cap Screw is used to fasten critical parts that require precise alignment and secure fastening. These engines, known for their robust performance and reliability, depend on this screw to maintain the integrity of the engine’s structure, ensuring that components remain tightly secured under high operational stresses.

QSK19 CM850 MCRS and QSN14 CM876 N103 Engines

For the QSK19 CM850 MCRS and QSN14 CM876 N103 engines, the Hexagon Head Cap Screw is employed in similar capacities. These engines, designed for heavy-duty applications, benefit from the screw’s ability to provide a strong and reliable connection between parts. The precision and durability of the screw are essential in maintaining the performance and longevity of these engines, especially in demanding environments.

The use of the Hexagon Head Cap Screw in these engines underscores its importance in ensuring the engines’ operational efficiency and reliability. The screw’s design allows for easy installation and removal, facilitating maintenance and repair processes. Its application across multiple engine models highlights its versatility and critical role in Cummins’ engine technology.

Role of Part 137876 Hexagon Head Cap Screw in Engine Systems

Alternator

In the alternator system, part 137876 Hexagon Head Cap Screw is utilized to secure various components. It ensures the alternator remains firmly attached to its mounting bracket. This secure attachment is essential for the alternator’s stable operation, allowing it to generate electricity efficiently without vibrations that could lead to performance issues or damage.

Alternator Mounting

For the alternator mounting, part 137876 Hexagon Head Cap Screw plays a significant role in maintaining the structural integrity of the mounting system. It fastens the alternator to the engine block or other supporting structures, ensuring that the alternator is held in place under the dynamic conditions of engine operation. This stability is vital for consistent electrical output and longevity of the alternator.

Alternator Support

In the alternator support system, part 137876 Hexagon Head Cap Screw is employed to reinforce the support brackets and frames. These screws help in distributing the load evenly across the support structure, reducing stress points and enhancing the durability of the alternator support. This ensures that the alternator operates within optimal parameters, contributing to reliable vehicle performance.

Thermostat Housing

Within the thermostat housing assembly, part 137876 Hexagon Head Cap Screw is used to secure the housing to the engine block. This secure attachment is important for maintaining the integrity of the cooling system. It ensures that the thermostat housing remains watertight, preventing coolant leaks that could lead to engine overheating. The screw’s role in this component is to provide a robust connection that withstands the thermal and mechanical stresses encountered during engine operation.

Conclusion

The 137876 Hexagon Head Cap Screw is a critical component in the maintenance and operation of commercial trucks and Cummins engines. Its design, featuring a hexagonal head and high-quality materials, ensures secure fastening and durability under demanding conditions. The screw’s application across various engine components underscores its versatility and importance in ensuring the reliability and performance of truck and engine systems. Proper installation, regular maintenance, and adherence to torque specifications are essential for maximizing the screw’s lifespan and effectiveness.