4988583
Regular Hexagon Nut
Cummins®

Introduction

The 4988583 Regular Hexagon Nut is a component manufactured by Cummins, a prominent name in the diesel engine industry. This nut is significant in the maintenance and operation of commercial trucks, providing reliable fastening solutions that ensure the integrity and performance of various truck assemblies.

Basic Concepts of Regular Hexagon Nuts

A regular hexagon nut is characterized by its six-sided shape, which offers several advantages in fastening applications. The hexagonal design allows for efficient and secure tightening using standard tools, such as wrenches or sockets, which engage all six sides simultaneously. This shape distributes the applied force evenly, reducing the risk of rounding or stripping the nut compared to other designs. The hexagonal geometry also provides a greater contact area between the nut and the fastener, enhancing the stability and security of the connection ¹.

Purpose and Role in Truck Operation

This Cummins part plays a specific role in the operation and maintenance of commercial trucks by securing critical components and assemblies. It is commonly used in applications such as engine mounts, transmission housings, and chassis components. Its design ensures that these parts remain firmly in place, even under the dynamic and demanding conditions encountered in truck operations.

Key Features

The 4988583 Regular Hexagon Nut is crafted from high-quality materials, typically alloy steel, to ensure durability and strength. It features a fine or coarse thread, depending on the application, which allows for precise and secure fastening. Additionally, the nut may be treated with special coatings or finishes to enhance its corrosion resistance and performance in harsh environments. These features contribute to the nut’s reliability and longevity in commercial truck applications ².

Benefits

Using the 4988583 Regular Hexagon Nut in truck maintenance offers several benefits. Its design provides improved fastening security, reducing the likelihood of loosening due to vibration, a common issue in heavy-duty truck operations. The nut’s material composition and possible coatings enhance its resistance to corrosion and wear, ensuring longevity even in harsh operating conditions. These attributes contribute to the overall reliability and performance of truck assemblies.

Installation Guidelines

Proper installation of the 4988583 Regular Hexagon Nut is crucial for ensuring its effectiveness and longevity. It should be installed using the appropriate tools, such as a torque wrench, to achieve the specified torque settings. This ensures that the nut is tightened to the correct level, providing a secure connection without over-tightening, which could damage the nut or the fastener. Following manufacturer guidelines for torque specifications and using recommended tools will help maintain the integrity of the fastening ³.

Troubleshooting and Maintenance

Regular inspection and maintenance of the 4988583 Regular Hexagon Nut can help identify and address common issues, such as corrosion or loosening. If corrosion is detected, cleaning the nut and applying a protective coating can help prevent further degradation. In cases of loosening, re-tightening the nut to the specified torque settings or replacing it if damaged is recommended. Regular maintenance practices, including inspection during routine service intervals, can ensure the longevity and reliability of the nut in truck applications.

Cummins: Manufacturer Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes diesel and natural gas engines, as well as related technologies. With a strong commitment to quality and innovation, Cummins plays a significant role in the diesel engine industry. The company’s product offerings include a wide range of components, such as the 4988583 Regular Hexagon Nut, which are designed to meet the demanding requirements of commercial truck applications. Cummins’ emphasis on quality ensures that its components contribute to the reliability and performance of diesel engines and truck assemblies.

Compatibility

The 4988583 Regular Hexagon Nut is designed to fit a variety of Cummins engines. This part is integral in securing various engine components, ensuring stability and reliability during operation. Below is a detailed breakdown of the engines with which this nut is compatible:

Compatible Engines

• 4B3.9
• 6C8.3
• C GAS PLUS CM556
• ISL9 CM2150 SN
• ISL9.5 CM2880 L138
• L8.9
• L8.9 CM2670 L134C
• L8.9G CMOH2.0 L125B
• QSL8.9 CM2150 L141
• QSL9 CM850 (CM2850)

Grouping of Compatible Engines

ISL Series

• ISL9 CM2150 SN
• ISL9.5 CM2880 L138

L Series

• L8.9
• L8.9 CM2670 L134C
• L8.9G CMOH2.0 L125B
• QSL8.9 CM2150 L141

QSL Series

• QSL9 CM850 (CM2850)

Other Models

• 4B3.9
• 6C8.3
• C GAS PLUS CM556

This nut is engineered to meet the stringent requirements of Cummins engines, ensuring that it provides the necessary strength and durability for various applications within these engine models.

Role in Engine Systems

The 4988583 Regular Hexagon Nut is an essential component in securing various engine system assemblies. Its primary function is to provide a reliable fastening mechanism that ensures components remain firmly in place under operational conditions.

Application in Mounting Systems

In mounting applications, the Regular Hexagon Nut is utilized to anchor the engine to the vehicle’s frame. This secure attachment is vital for absorbing vibrations and ensuring the engine remains stable during operation. The nut works in conjunction with bolts to create a robust connection, which is particularly important in high-stress environments where engine movement could lead to damage or failure of the mounting brackets.

Integration with Alternators

When it comes to alternators, the Regular Hexagon Nut plays a significant role in the assembly process. It is used to fasten the alternator to its mounting bracket, ensuring that the alternator remains securely positioned. This is important for maintaining the alignment of the drive belt, which is essential for the efficient transfer of power from the engine to the alternator. Proper securing also prevents any unwanted movement that could affect the alternator’s performance or lead to belt slippage.

Use in Refrigerant Compressors

In refrigerant compressor systems, the Regular Hexagon Nut is employed to secure the compressor to its mounting points. This ensures that the compressor remains stable during operation, which is essential for maintaining the efficiency of the air conditioning system. The nut helps in withstanding the vibrational forces generated by the compressor, thereby contributing to the longevity and reliability of the cooling system.

Conclusion

Overall, the 4988583 Regular Hexagon Nut is a fundamental component in ensuring the secure and efficient operation of various engine system assemblies. Its reliable fastening capabilities are instrumental in maintaining the integrity and performance of mounting systems, alternators, and refrigerant compressors.