138045
Hexagon Head Cap Screw
Cummins®

The Cummins Hexagon Head Cap Screw, part number 138045, is a critical component in the commercial truck industry. Manufactured by Cummins, a renowned name in heavy-duty truck engines, this screw is essential for the assembly and maintenance of various truck components, ensuring they remain securely fastened. Understanding the role and application of the 138045 Hexagon Head Cap Screw is important for maintaining the integrity and performance of commercial vehicles.

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. The design includes a threaded shaft that engages with the internal threads of a nut or a tapped hole, providing a strong and secure connection. Cap screws are widely used across various industries for their reliability and strength in fastening applications ¹.

Purpose of the 138045 Hexagon Head Cap Screw in Trucks

In commercial trucks, the 138045 Hexagon Head Cap Screw serves a specific function in securing critical components. It is commonly used in areas where high tensile strength and resistance to vibration are required. This screw plays a role in fastening engine components, chassis parts, and other structural elements, contributing to the overall stability and safety of the vehicle ².

Key Features of the 138045 Hexagon Head Cap Screw

The 138045 Hexagon Head Cap Screw is distinguished by several key characteristics. It is typically made from high-grade steel, ensuring durability and resistance to wear. The screw features a specific thread type that provides a strong grip, minimizing the risk of loosening over time. The hexagonal head design allows for easy and precise tightening, which is crucial in maintaining the integrity of the fastened components ³.

Benefits of Using Cummins Hexagon Head Cap Screws

Cummins-manufactured Hexagon Head Cap Screws offer several advantages. These screws are known for their reliability, which is attributed to rigorous quality control measures during production. They exhibit excellent corrosion resistance, making them suitable for use in various environmental conditions. Additionally, Cummins screws perform well under stress, ensuring that they maintain their structural integrity in demanding applications ⁴.

Installation and Usage Guidelines

Proper installation of the 138045 Hexagon Head Cap Screw is crucial for its effectiveness. It should be installed using the appropriate torque settings to ensure a secure fit without over-tightening, which could damage the screw or the components being fastened. Best practices include using the correct tools and following manufacturer guidelines to achieve optimal performance and longevity.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws include loosening due to vibration or corrosion. Regular inspection and maintenance can help identify these issues early. To prolong the life of the screw, it is important to ensure that it is properly torqued and that any signs of wear or corrosion are addressed promptly. Replacement should be considered if the screw shows significant signs of damage or if it no longer provides a secure fastening.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a strong reputation in the commercial truck industry, Cummins is known for producing high-quality components that meet the demanding requirements of heavy-duty applications. The company’s commitment to innovation and customer satisfaction makes it a preferred manufacturer for truck components, including fasteners like the 138045 Hexagon Head Cap Screw.

Cummins Engine Compatibility with Hexagon Head Cap Screw 138045

The Cummins Hexagon Head Cap Screw part number 138045 is a versatile component that is compatible with a range of Cummins engines. This screw is designed to provide a secure fastening solution, ensuring the integrity and reliability of engine assemblies. Below is a detailed look at the compatibility of this part with various Cummins engines:

Compatible Engines

• 6C8.3
• G855
• G855 CM558
• GTA855 CM558 (CM2358) G101
• K19
• N14 G
• N14 MECHANICAL
• NH/NT 855

Grouped Compatibility

Group 1: G Series Engines

• G855
• G855 CM558

Group 2: GTA Series Engines

• GTA855 CM558 (CM2358) G101

Group 3: K Series Engines

• K19

Group 4: N Series Engines

• N14 G
• N14 MECHANICAL

Group 5: NH/NT Series Engines

• NH/NT 855

Group 6: 6C Series Engines

• 6C8.3

The Hexagon Head Cap Screw 138045 is engineered to meet the stringent requirements of these engines, providing a reliable fastening solution across different engine series and models. Its compatibility with these engines ensures that it can be used in various applications, from securing engine components to ensuring the structural integrity of the engine assembly.

Role of Part 138045 Hexagon Head Cap Screw in Engine Systems

Part 138045, a Hexagon Head Cap Screw, is integral to the assembly and functionality of various engine components. Its role is to provide secure fastening, ensuring that components remain firmly in place under operational conditions.

Adapter Spin-On and Adaptor

In the adapter spin-on and adaptor systems, the Hexagon Head Cap Screw is used to attach the adaptor to the engine block or other mounting surfaces. This secure attachment is vital for the proper functioning of the spin-on filter, ensuring it remains sealed and operational.

Remote Lubricating Oil Filter and Cooler

For the remote lubricating oil filter and cooler setups, the screw is employed to fasten the filter housing and cooler to their respective mounts. This ensures a leak-free connection, maintaining the integrity of the lubricating system.

Damper and Pulley Mounting

In damper and pulley mounting applications, the Hexagon Head Cap Screw secures the damper and pulley to the crankshaft or other rotating components. This attachment is essential for maintaining alignment and balance, which are critical for smooth engine operation.

Full Flow Oil Filter and Filter Adapter Mounting

The screw plays a key role in mounting the full flow oil filter and filter adapter. It ensures that the filter is properly seated and sealed, allowing for efficient oil filtration and maintaining engine health.

Lubricating Oil Filter and Cooler Assemblies

In lubricating oil filter and cooler assemblies, the Hexagon Head Cap Screw is used to attach the filter and cooler components to their housings. This secure fastening is necessary to prevent leaks and ensure optimal performance of the lubrication system.

Lubricating Oil and Turbocharger Cooler

For the lubricating oil and turbocharger cooler, the screw is utilized to mount the cooler to the engine or its designated location. This secure attachment helps in maintaining the efficiency of the cooling system, which is essential for turbocharger performance.

Lubricating Oil Filter Adapter and Spin-On Filter

In the lubricating oil filter adapter and spin-on filter applications, the screw ensures that the filter is correctly installed and sealed. This is important for maintaining the cleanliness of the engine oil, which directly impacts engine longevity and performance.

Oil Cooler and Oil Filter

The Hexagon Head Cap Screw is also used in oil cooler and oil filter applications to secure these components to their mounts. This ensures that the cooling and filtration processes are effective, contributing to overall engine reliability.

Power Take-Off Assembly

In power take-off assemblies, the screw is employed to fasten various components, ensuring that the assembly remains intact and functions correctly. This is important for transmitting power from the engine to other machinery or equipment.

Overall, the Hexagon Head Cap Screw (Part 138045) is a fundamental component in the secure assembly and operation of various engine systems, playing a significant role in maintaining the efficiency and reliability of these systems.

Conclusion

The Cummins Hexagon Head Cap Screw, part number 138045, is a vital component in the assembly and maintenance of commercial trucks. Its role in securing critical engine components, chassis parts, and structural elements ensures the overall stability and safety of the vehicle. With its high-grade steel construction, strong grip, and hexagonal head design, this screw provides reliable and durable fastening solutions. Proper installation, regular maintenance, and understanding its compatibility with various Cummins engines are essential for maximizing its effectiveness and longevity in heavy-duty applications.