4938514
Hexagon Head Cap Screw
Cummins®

Introduction

The Hexagon Head Cap Screw Assembly 4938514, manufactured by Cummins, is a specialized fastener designed for use in commercial truck applications. Cummins, a well-established name in the commercial truck industry, produces this component to meet the demanding requirements of heavy-duty truck operations. This screw assembly is integral to ensuring the secure fastening of various components within truck systems, contributing to the overall reliability and performance of commercial vehicles.

Basic Concepts of Hexagon Head Cap Screw Assembly

A Hexagon Head Cap Screw Assembly is a type of fastener characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. In mechanical applications, these screws are used to join components securely, distributing load and stress across the fastened area. The design of the hexagon head provides a firm grip, reducing the likelihood of slippage during installation or removal ¹.

Role in Truck Operations

The 4938514 Hexagon Head Cap Screw Assembly plays a significant role in the operation of commercial trucks by securing critical components and systems. It is commonly used in applications such as engine mounts, transmission housings, and chassis assemblies. By providing a strong and reliable fastening solution, this screw assembly helps maintain the structural integrity and operational efficiency of the truck ².

Key Features

The 4938514 Hexagon Head Cap Screw Assembly features a robust design that includes a high-strength material composition, typically alloy steel, to withstand the rigors of commercial truck use. It has a fine or coarse thread type, depending on the specific application, which ensures a secure fit in various materials. The hexagonal head design allows for easy and precise tightening, while the cap under the head provides additional surface area for load distribution, enhancing the screw’s performance and durability.

Benefits

Using the 4938514 Hexagon Head Cap Screw Assembly offers several benefits. It provides improved fastening strength, ensuring that components remain securely attached under dynamic loads and vibrations typical in truck operations. Its design resists loosening over time, maintaining fastening integrity without frequent re-tightening. Additionally, the material and construction of the screw assembly contribute to its longevity, even in harsh operating conditions ³.

Installation Process

Proper installation of the 4938514 Hexagon Head Cap Screw Assembly involves several steps to ensure secure and effective fastening. Begin by cleaning the mating surfaces to remove any debris or corrosion. Insert the screw into the pre-drilled hole, ensuring it is aligned correctly. Use a torque wrench to tighten the screw to the specified torque value, which can be found in the manufacturer’s guidelines. It is important to follow the recommended tightening sequence for multiple screws to avoid warping or misalignment of components.

Troubleshooting and Maintenance

Common issues with the 4938514 Hexagon Head Cap Screw Assembly may include loosening due to vibrations or corrosion in exposed applications. Regular inspection and maintenance can help identify and address these issues early. If loosening is detected, re-tighten the screw to the specified torque. In cases of corrosion, cleaning the affected area and applying a suitable anti-corrosion treatment can help prolong the service life of the screw assembly.

Compatibility and Applications

The 4938514 Hexagon Head Cap Screw Assembly is designed for use in various commercial truck systems and components. Its compatibility extends to engine mounts, transmission housings, and chassis assemblies, among other applications. Ensuring the correct size and thread type is selected for the specific application is crucial for optimal performance and reliability.

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 commercial truck industry. The company’s extensive product range includes engines, powertrain components, and aftermarket parts, all designed to meet the demanding needs of commercial vehicle operators. The 4938514 Hexagon Head Cap Screw Assembly is a testament to Cummins’ commitment to providing high-quality, durable components for the commercial truck market.

Hexagon Head Cap Screw Assembly (Part 4938514) Compatibility with Cummins Engines

The Hexagon Head Cap Screw Assembly, part number 4938514, manufactured by Cummins, is a versatile component that finds application across a range of Cummins engines. This screw assembly is integral in securing various parts and ensuring the structural integrity of the engine. Below is a detailed look at the compatibility of this part with specific Cummins engines:

6B5.9 and 6C8.3 Engines

The 6B5.9 and 6C8.3 engines, known for their robust performance, utilize the 4938514 screw assembly in several critical applications. These engines, often found in heavy-duty applications, require reliable fastening solutions to maintain operational efficiency and safety. The hexagon head cap screw assembly is used in these engines to secure components such as engine covers, brackets, and other structural elements.

ISL9 CM2150 SN and ISL9.5 CM2880 L138 Engines

The ISL9 CM2150 SN and ISL9.5 CM2880 L138 engines benefit from the 4938514 screw assembly in their assembly and maintenance processes. These engines, designed for high-performance applications, demand precision and durability in their components. The hexagon head cap screw is used to fasten various parts, ensuring that the engine operates smoothly and efficiently.

L8.9 and L8.9 CM2670 L134C Engines

The L8.9 and L8.9 CM2670 L134C engines also incorporate the 4938514 screw assembly in their design. These engines, known for their reliability and power, use the hexagon head cap screw to secure multiple components, including engine mounts and covers. The precision and strength of the screw assembly are crucial for maintaining the structural integrity of these engines.

L9 CM2670 L128B and QSC8.3 CM2880 C102 Engines

The L9 CM2670 L128B and QSC8.3 CM2880 C102 engines are another set of Cummins engines that utilize the 4938514 screw assembly. These engines, often used in a variety of applications, require the screw assembly to secure various parts, ensuring that the engine operates under optimal conditions. The hexagon head cap screw is essential in maintaining the alignment and stability of the engine components.

QSL8.9 CM2150 L141 and QSL9 CM850 (CM2850) Engines

Finally, the QSL8.9 CM2150 L141 and QSL9 CM850 (CM2850) engines also incorporate the 4938514 screw assembly in their design. These engines, known for their versatility and performance, use the screw assembly to fasten critical components, ensuring that the engine maintains its structural integrity and operational efficiency. The hexagon head cap screw is a key component in the assembly and maintenance of these engines.

Conclusion

The 4938514 Hexagon Head Cap Screw Assembly is a critical component in the maintenance and operation of Cummins engines and commercial trucks. Its robust design, high-strength material, and precise threading ensure secure fastening and long-lasting performance. Proper installation, regular maintenance, and understanding its compatibility with various Cummins engines are essential for maximizing the efficiency and reliability of these systems.