3019640
Hexagon Head Cap Screw
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$24.95 $29.69

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Hexagon Head Cap Screw, specifically Part #3019640 by Cummins, is a vital component in the maintenance and operation of commercial trucks. Cummins, a renowned manufacturer in the industry, produces this screw to meet the demanding requirements of heavy-duty applications. This overview will delve into the design, function, and significance of the 3019640 Hexagon Head Cap Screw, providing a comprehensive understanding of its role in truck maintenance.

Basic Concepts of Hexagon Head Cap Screw

A Hexagon Head Cap Screw is a type of fastener characterized by its hexagonal head, which allows for efficient tightening and loosening using standard tools such as wrenches or sockets. The screw’s design includes external threading that engages with internal threads in the mating part, creating a secure connection. This type of screw is commonly used in applications requiring strong, permanent fastening, making it ideal for the rigors of commercial truck maintenance 1.

Purpose of the 3019640 Hexagon Head Cap Screw in Truck Operation

The 3019640 Hexagon Head Cap Screw plays a specific role in the operation and maintenance of commercial trucks. It is utilized in various applications where secure fastening is required, such as attaching components to the truck’s frame, securing engine parts, and ensuring the integrity of critical systems. Its design ensures that it can withstand significant stress and vibration, which are common in heavy-duty truck environments 2.

Key Features

The 3019640 Hexagon Head Cap Screw boasts several key features that enhance its performance and reliability. It is constructed from high-quality materials, typically a durable alloy steel, which provides excellent strength and resistance to wear. The screw features precise threading that ensures a tight and secure fit, minimizing the risk of loosening over time. Additionally, the hexagonal head design allows for easy and efficient use with standard tools, facilitating quick installation and removal 3.

Benefits

The 3019640 Hexagon Head Cap Screw offers numerous benefits that make it an excellent choice for commercial truck applications. Its durable material composition ensures long-lasting performance even under demanding conditions. The screw’s resistance to loosening helps maintain secure connections, reducing the need for frequent re-tightening. Furthermore, the ease of use with standard tools enhances efficiency during maintenance procedures, saving time and labor.

Installation Guidelines

Proper installation of the 3019640 Hexagon Head Cap Screw is crucial to ensure optimal performance and longevity. Begin by selecting the appropriate size and type of screw for the application. Use a tap to create threads in the mating part if necessary. Align the screw with the designated hole and begin threading it in by hand to avoid cross-threading. Once started, use a wrench or socket to tighten the screw to the recommended torque specification, ensuring a secure fit without over-tightening.

Troubleshooting Common Issues

Common issues with Hexagon Head Cap Screws include loosening, stripping, and corrosion. To address loosening, ensure the screw is tightened to the proper torque specification and consider using a thread locker for added security. If the screw strips, it may need to be replaced, and the mating thread may require repair or replacement. Corrosion can be mitigated by using screws made from corrosion-resistant materials and applying protective coatings where applicable.

Maintenance Tips

Regular maintenance of the 3019640 Hexagon Head Cap Screw is important to ensure continued performance and reliability. Periodic inspections should be conducted to check for signs of loosening, wear, or corrosion. If any issues are detected, address them promptly to prevent further damage. Replacement guidelines should be followed when screws show significant wear or damage, ensuring that new screws are installed to maintain the integrity of the fastening application.

Cummins: Manufacturer Overview

Cummins is a leading manufacturer in the commercial truck industry, known for its high-quality products and innovative solutions. With a rich history spanning several decades, Cummins has established a strong reputation for producing reliable and durable components. Their product range includes engines, powertrains, and various aftermarket parts, all designed to meet the rigorous demands of heavy-duty applications. Cummins’ commitment to excellence and customer satisfaction makes them a trusted name in the industry.

Cummins Hexagon Head Cap Screw 3019640 in Engine Applications

The Cummins Hexagon Head Cap Screw part number 3019640 is a critical component in various engine assemblies. This part is designed to provide robust fastening solutions, ensuring the integrity and performance of the engine’s components. Below is a detailed description of how this screw fits into specific engine applications.

L10 Mechanical Engines

In the L10 Mechanical engines, the Hexagon Head Cap Screw 3019640 is utilized in several key areas. This screw is integral to securing various engine parts, ensuring that they remain tightly fastened and aligned. Its application includes:

  • Cylinder Head Attachment: The screw is used to attach the cylinder head to the engine block, ensuring a tight seal and preventing leaks.
  • Valve Cover Fastening: It secures the valve cover to the engine, protecting internal components and maintaining the engine’s air and oil systems.
  • Accessory Mounting: The screw is also used for mounting various engine accessories, ensuring they are properly aligned and secured.

The precision and strength of the Hexagon Head Cap Screw 3019640 make it an essential part of the L10 Mechanical engines, contributing to the overall reliability and performance of the engine.

Role of Part 3019640 Hexagon Head Cap Screw in Engine Systems

The part 3019640 Hexagon Head Cap Screw is integral in securing various components within engine systems, ensuring stability and performance. Its application spans across several key areas:

  • Cylinder Block: This screw is often used to fasten the cylinder block to the engine frame, providing a secure foundation for the engine’s operation. It helps maintain alignment and reduces vibrations during engine operation.
  • Cylinder Head: In the assembly of the cylinder head, the Hexagon Head Cap Screw plays a role in attaching the head to the cylinder block. This connection is vital for sealing the combustion chamber and ensuring efficient heat transfer.
  • Cylinder Head Mounting: When mounting the cylinder head, these screws are employed to secure the head gasket in place. Proper mounting is essential for maintaining compression and preventing leaks.
  • Cylinder Mounting Head: Similarly, in the cylinder mounting head, these screws ensure that the cylinders are firmly attached to the engine block, contributing to the overall structural integrity of the engine.
  • Performance Parts: In high-performance engines, the Hexagon Head Cap Screw is used in various performance parts to enhance durability and reliability under increased stress and higher operating temperatures.
  • Short Block: Within the short block assembly, these screws are utilized to secure components such as the crankshaft, pistons, and connecting rods, ensuring they remain in precise alignment during engine operation.

The consistent use of part 3019640 across these components underscores its importance in maintaining the structural integrity and performance of engine systems.

Conclusion

The 3019640 Hexagon Head Cap Screw by Cummins is a critical component in the maintenance and operation of commercial trucks and engines. Its robust design, durable materials, and precise threading ensure secure fastening and long-lasting performance. Proper installation, regular maintenance, and addressing common issues are essential to maximize the benefits of this Cummins part. Cummins’ reputation for quality and reliability further enhances the value of the 3019640 in heavy-duty applications.


  1. Reif, Konrad Ed. Brakes Brake Control and Driver Assistance Systems Function Regulation and Components. Springer, 2014.

  2. Khajepour, Amir. Synthesis Lectures on Advances in Automotive Technology. Springer, 2023.

  3. Xin, Qianfan. Diesel Engine System Design. Woodhead Publishing Limited, 2011.

SPECIFICATIONS

Service Part Topic
89T2-4
Notes
M14 x 1.50 x 140
Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
1.5 x 1.5 x 7.13 in
Weight
0.45 lbs
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.