3612793
Regular Hexagon Nut
Cummins®

The 3612793 Regular Hexagon Nut, manufactured by Cummins, is a specialized component designed for use in commercial truck applications. Cummins, a renowned name in the automotive industry, is known for its commitment to quality and innovation. This nut is integral to the fastening systems used in heavy-duty trucks, ensuring secure and reliable connections in various parts of the vehicle.

Basic Concepts of Regular Hexagon Nuts

A regular hexagon nut is a type of fastener characterized by its six-sided shape. This design allows for efficient tightening and loosening using standard hexagonal socket wrenches. The hexagonal shape provides a greater contact area compared to other nut designs, which enhances the grip and reduces the likelihood of the wrench slipping during use. This feature is particularly beneficial in high-torque applications, where secure fastening is paramount ¹.

Purpose of the 3612793 Regular Hexagon Nut in Truck Operations

The 3612793 Regular Hexagon Nut plays a significant role in the operation and maintenance of commercial trucks. It is commonly used in applications where secure fastening is required, such as in the attachment of critical components to the truck’s frame or engine. Its design ensures that connections remain tight under the demanding conditions experienced by heavy-duty trucks, including vibrations and varying loads ².

Key Features

The 3612793 Regular Hexagon Nut is crafted from high-quality materials, ensuring durability and resistance to wear and corrosion. It features a specific thread size that is compatible with a range of bolts used in truck applications. Additionally, the nut may include unique design elements, such as a locking mechanism, to prevent loosening over time. These features contribute to its performance and longevity in demanding environments ³.

Benefits

Using the 3612793 Regular Hexagon Nut in truck applications offers several advantages. Its design enhances fastening security, providing a reliable connection that can withstand the rigors of heavy-duty use. The nut’s resistance to vibration helps maintain tight connections, reducing the risk of component failure. Furthermore, its compatibility with standard tools simplifies installation and maintenance procedures.

Installation Guidelines

Proper installation of the 3612793 Regular Hexagon Nut is crucial for ensuring optimal performance and longevity. It should be installed using the appropriate torque specifications to achieve the correct tension without over-tightening, which could damage the nut or the connected components. Best practices include cleaning the mating surfaces before installation and periodically checking the tightness of the nut during use to prevent loosening.

Maintenance and Troubleshooting

Regular maintenance of the 3612793 Regular Hexagon Nut involves inspecting it for signs of wear, corrosion, or damage. Common issues such as loosening can often be addressed by re-tightening the nut to the specified torque. In cases of significant corrosion or damage, replacement of the nut may be necessary to ensure continued reliable operation. Routine checks and maintenance can help prevent unexpected failures and extend the service life of the nut.

Cummins: Manufacturer Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry. The company’s commitment to excellence is evident in its wide range of products, which are designed to meet the demanding requirements of heavy-duty applications. Cummins’ focus on quality and innovation ensures that its components, including the 3612793 Regular Hexagon Nut, deliver reliable performance in the field.

Cummins Regular Hexagon Nut 3612793 Compatibility

The Cummins Regular Hexagon Nut part number 3612793 is a versatile component designed to fit a variety of Cummins engines. This part is essential for maintaining the structural integrity and operational efficiency of these engines. Below is a detailed breakdown of the engines with which this nut is compatible:

G-Series Engines

• G5.9
• G8.3

These smaller G-series engines, often found in light-duty applications, benefit from the secure fastening provided by the 3612793 nut.

ISX Engines

• ISX CM570

The ISX engine, known for its power and efficiency, utilizes the 3612793 nut in several critical applications, ensuring reliable performance under heavy loads.

KTA38 Engines

• KTA38GC CM558

The KTA38GC engine, a robust and reliable option for heavy-duty applications, incorporates the 3612793 nut to maintain its structural integrity.

L10 Engines

• L10 CELECT
• L10 MECHANICAL

Both versions of the L10 engine, whether CELECT or MECHANICAL, rely on the 3612793 nut for various fastening needs, ensuring durability and ease of maintenance.

N14 Engines

• N14 MECHANICAL

The N14 MECHANICAL engine, a staple in the heavy-duty market, uses the 3612793 nut in several key areas to maintain its operational reliability.

QSB Engines

• QSB4.5 CM850 (CM2850)
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

The QSB series, known for its versatility and power, employs the 3612793 nut in various configurations to ensure optimal performance and longevity.

QSK Engines

• QSK50 CM2150 MCRS

The QSK50 engine, designed for high-performance applications, uses the 3612793 nut to maintain its structural integrity and operational efficiency.

QSL Engines

• QSL8.9 CM2150 L141
• QSL9 CM850 (CM2850)

Both the QSL8.9 and QSL9 engines, known for their reliability and power, incorporate the 3612793 nut in several critical fastening applications.

VTA Engines

• VTA903 CM2250 V105

The VTA903 engine, a robust and reliable option for heavy-duty applications, utilizes the 3612793 nut to maintain its structural integrity and ensure reliable performance.

This comprehensive compatibility ensures that the Cummins Regular Hexagon Nut 3612793 is a crucial component for maintaining the integrity and performance of a wide range of Cummins engines.

Role of Part 3612793 Regular Hexagon Nut in Engine Systems

The Part 3612793 Regular Hexagon Nut is an essential component in various engine systems, ensuring secure and reliable connections across multiple assemblies. Here’s how it integrates with the provided components:

Accessories

In accessory systems, the Regular Hexagon Nut is used to fasten components such as brackets, mounts, and housings. It ensures that accessories like the electric starting system are securely attached to the engine frame, minimizing vibrations and ensuring operational stability.

Electric Starting

For the electric starting system, the nut is pivotal in securing the starter motor to the engine block. This connection is vital for the reliable engagement of the starter gear with the flywheel, ensuring smooth engine startups.

Alternator Wiring Harness

In the alternator wiring harness arrangement, the Regular Hexagon Nut is employed to secure wiring terminals and connectors. This ensures a solid electrical connection, preventing issues such as intermittent power supply to the alternator.

Pressure Regulator Valve

Within the pressure regulator valve arrangement, the nut is used to fasten the valve housing to the engine block or fuel system. This secure attachment is important for maintaining consistent fuel pressure, which is essential for optimal engine performance.

Turbocharger

In turbocharger systems, the Regular Hexagon Nut is utilized to attach the turbocharger to the engine and exhaust manifold. This ensures a leak-free connection, which is critical for maintaining boost pressure and overall turbocharger efficiency.

Fuel Control and Fuel Control Housing

For the fuel control and fuel control housing, the nut is used to secure various components within the fuel system. This includes fastening the fuel control housing to the engine, ensuring precise fuel delivery and maintaining the integrity of the fuel system.

Fuel Pump and Gear Fuel Pump

In fuel pump and gear fuel pump systems, the Regular Hexagon Nut is employed to secure the pump housing to the engine block. This ensures a stable and vibration-free operation of the fuel pump, which is essential for consistent fuel supply.

Fuel Transfer Kit and Fuel Transfer Right Hand Engine Kit

For fuel transfer systems, the nut is used to fasten components such as pipes, fittings, and housings. This ensures a secure and leak-free fuel transfer, which is vital for the reliable operation of multi-engine setups.

Lower Engine Gasket Kit

In the lower engine gasket kit, the Regular Hexagon Nut is used to secure various engine components, such as the oil pan and sump. This ensures a tight seal, preventing oil leaks and maintaining engine lubrication.

Module Fuel Control

For module fuel control systems, the nut is utilized to secure the module housing to the engine. This ensures a stable and reliable fuel control module, which is essential for precise fuel management.

Rear Crank Seal Kit

In the rear crank seal kit, the Regular Hexagon Nut is used to secure the seal housing to the engine block. This ensures a leak-free seal, which is important for maintaining engine lubrication and preventing contamination.

Service Kit

Within service kits, the nut is included to facilitate the reassembly of engine components after maintenance or repair. It ensures that all parts are securely fastened, maintaining the engine’s structural integrity and operational reliability.

Electronic Engine Control System

In electronic engine control systems, the Regular Hexagon Nut is used to secure various sensors, actuators, and control modules to the engine. This ensures a stable and reliable connection, which is essential for accurate engine management.

Throttle Switch Lever

For the throttle switch lever, the nut is employed to secure the lever to the throttle body or carburetor. This ensures a precise and reliable throttle response, which is important for engine performance and drivability.

Valve and Pressure Regulator

In valve and pressure regulator systems, the Regular Hexagon Nut is used to secure the valve housing and regulator components to the engine. This ensures a stable and reliable connection, which is essential for maintaining system pressure and performance.

Conclusion

The 3612793 Regular Hexagon Nut is a critical component in the maintenance and operation of Cummins engines, ensuring secure and reliable connections across various engine systems. Its compatibility with a wide range of Cummins engines, coupled with its robust design and high-quality materials, makes it an indispensable part for heavy-duty truck applications. Proper installation, regular maintenance, and understanding its role in different engine components are essential for maximizing the performance and longevity of this Cummins part.