4968985
Hexagon Head Cap Screw
Cummins®

The 4968985 Hex Head Cap Screw is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is specifically designed for use in commercial trucks, where it plays a role in securing various components and assemblies.

Basic Concepts of Hex Head Cap Screws

A Hex Head Cap Screw is a type of fastener characterized by a hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. These screws are commonly used in mechanical assemblies to secure components together. They function by creating a strong, reliable connection that can withstand significant stress and vibration, which is particularly important in the demanding environment of commercial truck operations ¹.

Purpose of the 4968985 Hex Head Cap Screw in Truck Operations

The 4968985 Hex Head Cap Screw is utilized in commercial trucks to secure critical components and assemblies. Its role is to provide a robust fastening solution that ensures parts remain securely in place under various operational conditions. This is particularly important in trucks, where components are subject to significant stress, vibration, and environmental factors ².

Key Features

The 4968985 Hex Head Cap Screw is designed with several key features that enhance its performance and durability. It is made from high-quality materials, typically a grade of steel that offers excellent strength and resistance to wear. The screw features a specific thread type that ensures a secure fit and optimal load distribution. Additionally, its design includes a hexagonal head for easy installation and removal using standard tools ³.

Benefits

Using the 4968985 Hex Head Cap Screw provides several benefits. It offers improved fastening strength, ensuring that components remain securely attached. The material composition provides resistance to corrosion, which is vital for longevity in the often harsh environments encountered by commercial trucks. Additionally, the design of the screw allows for ease of installation and removal, facilitating maintenance and repair processes.

Installation Process

Proper installation of the 4968985 Hex Head Cap Screw is important for ensuring optimal performance and longevity. The process involves selecting the appropriate size and type of screw for the application, ensuring the mating surfaces are clean and free of debris, and using the correct torque specifications to achieve the desired clamping force without over-tightening.

Troubleshooting Common Issues

Common issues with Hex Head Cap Screws can include loosening over time due to vibration, corrosion, or improper installation. Troubleshooting these issues involves inspecting the screw and mating surfaces for signs of wear or damage, ensuring that the correct torque specifications were used during installation, and addressing any environmental factors that may contribute to corrosion.

Maintenance Tips

Regular maintenance of the 4968985 Hex Head Cap Screw involves periodic inspection to check for signs of wear, corrosion, or loosening. It is important to follow torque specifications during re-tightening or replacement to ensure the screw maintains its fastening strength. Replacement should be considered if significant wear or damage is observed, or if the screw no longer provides a secure connection.

Cummins: Manufacturer Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration systems, and aftermarket parts. With a strong reputation in the commercial truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range and focus on reliability make it a preferred choice for commercial truck operators and maintenance professionals.

Hex Head Cap Screw 4968985 in Cummins Engines

The Hex Head Cap Screw 4968985 is a critical component in several Cummins engine models, ensuring secure fastening and structural integrity. This part is integral to the assembly and maintenance of the engines, providing reliable performance and durability.

KTA19GC and KTA19GC CM558

In the KTA19GC and KTA19GC CM558 engines, the Hex Head Cap Screw 4968985 is used in various applications where robust fastening is required. These engines are known for their reliability and efficiency, and the use of high-quality screws like 4968985 ensures that all components are securely fastened, contributing to the overall performance and longevity of the engine.

QSK50 CM2150 MCRS

The QSK50 CM2150 MCRS engine also utilizes the Hex Head Cap Screw 4968985 in its construction. This engine is designed for heavy-duty applications, and the use of such a screw is essential in maintaining the structural integrity of the engine under demanding conditions. The screw’s design and material properties make it suitable for the high-stress environments within the engine, ensuring that all parts remain securely in place.

By incorporating the Hex Head Cap Screw 4968985, Cummins ensures that these engines can operate efficiently and reliably, providing the necessary performance for their intended applications.

Role of Part 4968985 Hex Head Cap Screw in Various Engine Components

The part 4968985 Hex Head Cap Screw is integral to the assembly and functionality of several key engine components. Its robust design and secure fit make it an essential fastener in the following areas:

Aftercooler and Aftercooler Mounting

In the aftercooler system, the Hex Head Cap Screw is used to secure the aftercooler to its mounting bracket. This ensures that the aftercooler remains firmly in place, allowing for efficient cooling of the compressed air before it enters the engine. Proper mounting is essential for maintaining the structural integrity and performance of the aftercooler.

Arrangement and Pressure Regulator Valve

Within the arrangement of the engine’s pressure regulation system, the Hex Head Cap Screw plays a role in securing the pressure regulator valve. This valve is responsible for maintaining consistent pressure levels within the engine, and the screw ensures that it is held in place under varying operational conditions.

Fuel Transfer Kit and Fuel Transfer Right Hand Engine Kit

In both the fuel transfer kit and the fuel transfer right hand engine kit, the Hex Head Cap Screw is utilized to fasten components that are vital for the precise transfer of fuel. This includes securing fuel lines, connectors, and other critical parts that ensure fuel is delivered efficiently and reliably to the engine.

Harness and Electronic Control Module Wiring

The screw is also employed in the assembly of the harness and electronic control module (ECM) wiring. It secures various connectors and terminals, ensuring that the electrical connections remain intact and function correctly. This is vital for the proper operation of the ECM and the overall electronic systems of the engine.

Housing and Thermostat

In the housing that encases the thermostat, the Hex Head Cap Screw is used to ensure a tight and secure fit. This is important for maintaining the integrity of the housing and ensuring that the thermostat can accurately regulate the engine’s temperature.

Manifold and Air Intake

The manifold and air intake system rely on the Hex Head Cap Screw to secure various components, such as sensors and mounting brackets. This ensures that the air intake system operates efficiently, providing the engine with the necessary airflow for optimal performance.

Service Kit

Within the service kit, the Hex Head Cap Screw is included to facilitate the reassembly of various engine components after maintenance or repair. Its use ensures that all parts are securely fastened, contributing to the longevity and reliability of the engine.

Conclusion

The 4968985 Hex Head Cap Screw is a vital component in the assembly and maintenance of Cummins engines, ensuring secure fastening and structural integrity across various engine components. Its robust design, ease of installation, and resistance to corrosion make it an essential part for the reliable operation of commercial trucks. Regular maintenance and proper installation are key to maximizing the performance and longevity of this Cummins part.