4917057
Hexagon Head Cap Screw
Cummins®

Introduction

The Hexagon Head Cap Screw Part #4917057 by Cummins is a specialized fastener designed for use in commercial trucks. This screw is integral to the maintenance and operation of trucks, ensuring that components remain securely fastened under various operational conditions. Its design and material composition are tailored to meet the demanding requirements of heavy-duty applications.

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 efficient tightening and loosening using a wrench or socket. In the automotive industry, these screws are commonly used to secure components that require a high degree of stability and resistance to vibration. Mechanically, the screw functions by converting torque applied to the head into clamping force, which holds components together securely ¹.

Purpose of the 4917057 Hexagon Head Cap Screw in Truck Operation

This Cummins part plays a specific role in the operation and maintenance of commercial trucks. It is utilized in various truck systems where secure fastening is crucial. This includes applications in the engine compartment, chassis, and other critical areas where components are subject to significant stress and vibration. The screw ensures that parts remain firmly in place, contributing to the overall reliability and safety of the truck ².

Key Features of the 4917057 Hexagon Head Cap Screw

The 4917057 boasts several key features that enhance its effectiveness and durability. It is composed of high-strength materials, typically alloy steel, which provides excellent resistance to wear and corrosion. The screw features a fine thread type, allowing for precise adjustments and secure fastening. Its hexagonal head design enables easy and efficient tightening and loosening, reducing the risk of damage to the screw or surrounding components ³.

Benefits of Using the 4917057 Hexagon Head Cap Screw

Using this part offers several benefits. The screw provides enhanced security due to its high clamping force and resistance to loosening, even under vibration. Its ease of installation and removal is facilitated by the hexagonal head, which allows for straightforward torque application. Additionally, the screw’s resistance to corrosion and wear ensures long-term reliability in demanding environments.

Troubleshooting and Maintenance Suggestions

To maintain the longevity and optimal performance of the 4917057, regular inspection and maintenance are recommended. Common issues such as corrosion or stripping can be addressed by ensuring the screw is clean and free from contaminants before installation. Applying an appropriate anti-seize compound can help prevent corrosion and facilitate future removal. If stripping occurs, it may be necessary to replace the screw to maintain secure fastening.

Installation and Usage Guidelines

Proper installation of the 4917057 is crucial for its effectiveness. Begin by ensuring the mating surfaces are clean and free from debris. Use the appropriate wrench or socket to tighten the screw to the specified torque settings, which can typically be found in the vehicle’s service manual. Avoid over-tightening, as this can lead to damage. Recommended tools include a torque wrench for precise application of torque and a socket set compatible with the screw’s hexagonal head.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a history spanning over a century, Cummins is renowned for its commitment to quality, innovation, and customer satisfaction. The company’s product range includes engines and components for on-highway and off-highway applications, marine, power generation, and industrial uses. Cummins’ reputation in the commercial truck industry is built on its dedication to producing reliable and high-performance products.

Hexagon Head Cap Screw 4917057 in Cummins Engines

The Cummins Hexagon Head Cap Screw part number 4917057 is a critical component in several of Cummins’ engine models. This screw is integral to the assembly and maintenance of the engines, ensuring structural integrity and operational efficiency.

QSK50 Engines

In the QSK50 series, the 4917057 screw is utilized in both the CM2150 and MCRS variants. This screw plays a pivotal role in securing various engine components, ensuring that they remain tightly fastened and aligned during operation. Its use in these models underscores its importance in maintaining the engine’s overall structural integrity.

QSK60 Engines

The QSK60 CM850 MCRS engine also incorporates the 4917057 screw. Given the larger size and power output of the QSK60 engines, the reliability and strength of the screw are even more crucial. It is used to secure components that are subject to higher stress and torque, ensuring that the engine can operate under demanding conditions without failure.

Common Usage Across Models

While the specific applications of the 4917057 screw may vary across different engine models, its role remains consistent. It is used in areas where high strength and durability are required, such as in the engine block, cylinder heads, and other critical assemblies. The screw’s design, with its hexagonal head, allows for easy and efficient tightening and loosening, which is essential during maintenance and repair operations.

The use of the 4917057 screw in these engines highlights Cummins’ commitment to quality and reliability. By employing such a robust component, Cummins ensures that their engines can perform reliably under a wide range of conditions, from heavy-duty industrial applications to demanding marine environments.

Role of Part 4917057 Hexagon Head Cap Screw in Engine Systems

The 4917057 Hexagon Head Cap Screw is a fundamental component in securing various connections and components within engine systems. Its primary function is to ensure the integrity and stability of these connections, which are vital for the efficient operation of the engine.

Securing Connections

The screw is used to fasten multiple types of connections, including:

• Auxiliary Cooling Inlet and Outlet Connections: These connections are part of the auxiliary cooling system, which helps manage the temperature of engine components that are not directly cooled by the primary cooling system. The 4917057 screw ensures that these connections remain tight, preventing leaks and ensuring efficient coolant flow.

• Raw Water Inlet and Outlet Connections: These connections are essential for the raw water cooling system, which uses water from an external source (such as a lake or ocean) to cool the engine. The screw secures these connections, maintaining the structural integrity and preventing water ingress or loss.

• Water Inlet and Outlet Connections: These connections are part of the primary cooling system, responsible for circulating coolant through the engine block and radiator. The screw plays a key role in keeping these connections secure, which is essential for maintaining consistent coolant flow and engine temperature.

Heat Exchanger Connections

The 4917057 screw is also utilized in securing connections to the heat exchanger. The heat exchanger is a component that transfers heat from the engine coolant to another fluid, typically raw water in marine applications. Secure connections are imperative to ensure efficient heat transfer and to prevent coolant leaks, which could lead to engine overheating.

Conclusion

In summary, the 4917057 Hexagon Head Cap Screw is integral to maintaining the structural integrity and operational efficiency of various engine system connections. Its role in securing these connections ensures that the engine operates within safe temperature ranges and that coolant systems function as intended.