3034836
Hexagon Head Cap Screw
Cummins®

The Cummins Part #3034836 Hexagon Head Cap Screw is a specialized fastener designed for use in commercial trucks. Its purpose is to securely join components within the truck’s mechanical assemblies, ensuring structural integrity and operational reliability. This screw is particularly valued in the trucking industry for its robust design and compatibility with Cummins engines and components ².

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is a type of bolt characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. These screws are widely used in mechanical assemblies to fasten components together. They function by converting rotational force into linear force, which compresses the components and creates a secure joint. The hexagonal shape of the head provides a firm grip, reducing the risk of slippage during installation ¹.

Purpose and Role in Truck Operation

This Cummins part plays a specific role in the operation of commercial trucks. It is used in various assemblies, including engine components, chassis parts, and other critical systems. By securely fastening these components, the screw contributes to the overall functionality and safety of the vehicle. Its application ensures that parts remain firmly in place under the dynamic conditions experienced by trucks, such as vibrations and varying loads.

Key Features

The 3034836 boasts several key features that enhance its performance and durability in heavy-duty applications. These include a high-strength material composition, typically alloy steel, which provides excellent resistance to wear and corrosion. The screw features a coarse thread type, which offers superior holding power in various materials. Its hexagonal head design allows for easy and efficient installation using standard tools, ensuring a secure and reliable fastening solution.

Benefits

Using this Cummins part offers several benefits. Its high-strength material and design contribute to improved reliability, ensuring that critical components remain securely fastened during operation. The screw’s ease of installation reduces downtime and simplifies maintenance procedures. Additionally, its compatibility with other Cummins components ensures seamless integration into the truck’s systems, enhancing overall performance and longevity.

Installation and Usage Guidelines

Proper installation of the 3034836 is crucial for ensuring secure and effective fastening. To install the screw, use a wrench or socket that fits the hexagonal head. Apply steady, even pressure to tighten the screw, avoiding over-tightening, which can damage the components or the screw itself. Recommended tools include a torque wrench to achieve the specified tightening torque, ensuring a consistent and secure fastening. Follow the manufacturer’s guidelines for torque settings to maintain the integrity of the assembly.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws include loosening over time due to vibrations or thermal expansion and contraction. To address these issues, regularly inspect the screws for signs of loosening and retighten as necessary. Additionally, protect the screws from corrosion by applying a suitable anti-seize compound during installation. Routine maintenance practices, such as cleaning and lubricating the screw and its surrounding components, can prolong the life of the fastener and ensure continued performance.

Safety Considerations

When working with Hexagon Head Cap Screws, several safety considerations should be observed. Proper handling and storage of the screws are important to prevent damage and ensure they remain in good condition. Use personal protective equipment, such as gloves and safety glasses, to protect against injuries during installation and maintenance. Follow all safety guidelines and manufacturer recommendations to ensure a safe working environment.

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 is committed to quality and innovation in the automotive industry. The company’s extensive product range includes engines, components, and aftermarket parts, all designed to meet the demanding requirements of commercial and industrial applications. Cummins’ dedication to excellence ensures that its products, including the Part #3034836 Hexagon Head Cap Screw, deliver reliable performance and durability in various heavy-duty environments ².

Cummins Engine Compatibility with Hexagon Head Cap Screw Part 3034836

The Cummins Hexagon Head Cap Screw part number 3034836 is a versatile component that is compatible with a variety of Cummins engines. This part is designed to provide secure fastening in various engine applications, ensuring reliable performance and durability.

Compatible Engines

• 4B3.9
• 6B5.9
• G8.3
• GTA38 G CMEICS G116C
• ISM CM570
• ISM CM570/870
• ISM CM876
• ISM11 CM876 SN
• ISX CM870
• ISX12/ISX11.9 CM2250
• L10 CELECT
• L10 GAS
• L10 MECHANICAL
• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL
• QSM11 CM570
• QSM11 CM876
• QST30 CM552
• V903
• X12 CM2350 X119B

Grouping of Compatible Engines

• ISM Series: ISM CM570, ISM CM570/870, ISM CM876, ISM11 CM876 SN
• ISX Series: ISX CM870, ISX12/ISX11.9 CM2250
• L10 Series: L10 CELECT, L10 GAS, L10 MECHANICAL
• M11 Series: M11 CELECT, M11 CELECT PLUS, M11 MECHANICAL
• QSM11 Series: QSM11 CM570, QSM11 CM876
• QST30 Series: QST30 CM552
• Other Models: 4B3.9, 6B5.9, G8.3, GTA38 G CMEICS G116C, V903, X12 CM2350 X119B

This part is engineered to meet the stringent requirements of Cummins engines, providing a reliable fastening solution that can withstand the demanding conditions of engine operation.

Role of Part 3034836 Hexagon Head Cap Screw in Engine Systems

The 3034836 is integral to the assembly and securement of various engine components, ensuring their stability and proper function. This screw is commonly utilized in fastening components that require a robust and reliable connection.

In the accessory drive pulley system, the Hexagon Head Cap Screw secures the pulley to the engine, ensuring smooth operation of accessories driven by the engine’s rotation. For the aftercooler water plumbing, it plays a role in fastening fittings and connections, maintaining the integrity of the cooling system.

Within the air cleaner assembly, this screw is used to secure the housing and components, ensuring a tight seal and efficient air filtration. In alternator mounting, it helps in securing the alternator to the engine block, ensuring consistent power generation.

For the auxiliary pump and cylinder block cover, the screw provides the necessary fastening strength, ensuring these components remain in place under operational stress. In the drive, front gear train accessory drive systems, it secures various accessories and ensures they function in unison with the engine’s drive mechanisms.

The engine block itself may use this screw in several locations to secure brackets, sensors, or other attachments. In the engine oil cooler and oil filter cooler head, it ensures that these critical cooling components are firmly mounted, preventing leaks and ensuring efficient cooling.

For the fan drive and front drive adapter, the screw ensures that these components are securely attached, allowing for efficient heat dissipation and accessory operation. In the front engine support and front gear train accessory drive, it provides the necessary strength to withstand vibrational forces.

The fuel pump and its associated drive and mounting components rely on this screw to ensure secure attachment, vital for consistent fuel delivery. In the gasket set gear cover, it ensures that the cover is tightly sealed, preventing oil leaks.

For the ignition system arrangement, the screw secures various components, ensuring reliable ignition. In the oil cooler plumbing and connections, it maintains the integrity of the oil cooling system.

The rear clutch assembly uses this screw to secure components, ensuring smooth engagement and disengagement. In the refrigerant compressor, it secures the compressor to its mounting, ensuring efficient operation of the air conditioning system.

Lastly, in the starting aid mounting, the screw ensures that the starting aid components are securely attached, facilitating reliable engine starts.

Conclusion

The Cummins Part #3034836 Hexagon Head Cap Screw is a critical component in the assembly and securement of various engine components, ensuring their stability and proper function. Its robust design, high-strength material, and compatibility with Cummins engines make it an essential part for maintaining the reliability and performance of commercial trucks. Proper installation, regular maintenance, and adherence to safety guidelines are vital for maximizing the effectiveness of this screw in heavy-duty applications.