4007602
Lock Nut
Cummins®

The 4007602 Lock Nut, manufactured by Cummins, is a component designed for use in commercial truck maintenance and operation. Cummins, a well-established name in the industry, produces a range of parts that contribute to the efficiency and reliability of commercial vehicles. This Cummins part plays a significant role in ensuring the secure fastening of various components within the truck’s mechanical systems.

Basic Concepts of Lock Nuts

Lock nuts are mechanical fasteners designed to prevent loosening due to vibration or rotation. They function by creating a locking mechanism that holds the nut in place once it has been tightened. This is achieved through various designs, such as nylon inserts, deformed threads, or prevailing torque features. Lock nuts find applications across numerous mechanical systems where secure fastening is required to maintain safety and functionality ¹.

Purpose of the 4007602 Lock Nut in Truck Operation

This part is specifically designed to play a role in the fastening systems of commercial trucks. It is used in areas where vibrations or rotational forces could cause standard nuts to loosen over time. By providing a secure hold, the 4007602 Lock Nut helps maintain the integrity of critical connections, contributing to the overall safety and performance of the vehicle. Its applications include securing engine components, transmission parts, and various other assemblies where reliable fastening is paramount ².

Key Features of the 4007602 Lock Nut

The 4007602 Lock Nut is engineered with specific design and material characteristics to enhance its performance in heavy-duty applications. It is typically made from high-strength materials to withstand the rigors of commercial truck operation. The nut features a locking mechanism, such as a nylon insert or deformed threads, which provides resistance against loosening. Its design ensures compatibility with a range of fasteners, making it a versatile component in truck maintenance.

Benefits of Using the 4007602 Lock Nut

Using this Cummins part offers several advantages. The primary benefit is improved security against loosening, which is crucial in environments where vibrations are common. This enhances the durability of the fastening, reducing the need for frequent re-tightening. Additionally, the design of the 4007602 Lock Nut allows for ease of installation, making it a practical choice for maintenance tasks. Its robust construction ensures longevity, contributing to the overall reliability of the truck’s mechanical systems.

Installation Guidelines

Proper installation of the 4007602 Lock Nut is key to ensuring optimal performance and longevity. Begin by cleaning the threading area to remove any debris or corrosion. Apply a suitable thread lubricant to facilitate installation and prevent damage to the threads. Using a torque wrench, tighten the lock nut to the manufacturer’s specified torque setting. This ensures that the nut is secure without over-tightening, which could lead to stripping or damage. Finally, inspect the installation to confirm that the lock nut is properly seated and that the locking mechanism is engaged.

Maintenance and Troubleshooting

Maintaining the 4007602 Lock Nut involves regular inspection for signs of wear or damage. Check for any loosening, which may indicate a failure in the locking mechanism or excessive vibration. If loosening is detected, re-tighten the nut to the specified torque setting. In cases where the lock nut appears damaged or worn, replacement is recommended to ensure continued secure fastening. Troubleshooting common issues, such as vibration-induced loosening, may involve assessing the application environment and considering additional fastening solutions if necessary ³.

Cummins: A Brief 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 has established a reputation for quality and innovation in the commercial vehicle industry. The company offers a comprehensive range of products, including engines, powertrains, and aftermarket parts, designed to meet the demanding requirements of commercial and industrial applications. Cummins’ commitment to excellence and customer satisfaction has made it a trusted name among professionals in the field.

Compatibility of the 4007602 Lock Nut with Cummins Engines

This part, manufactured by Cummins, is a critical component designed to secure various parts within the engine assembly. It is integral to maintaining the structural integrity and operational efficiency of the engine by preventing loosening of fasteners due to vibrations and other operational stresses.

QSK45 CM500 and QSK60 CM500 Engines

The 4007602 Lock Nut is compatible with both the QSK45 CM500 and QSK60 CM500 engines. These engines are part of Cummins’ QSK series, known for their robust design and reliability in demanding applications. The lock nut ensures that critical fasteners remain securely in place, contributing to the overall performance and longevity of these engines.

QSK60 CM850 MCRS and QSK60G Engines

For the QSK60 CM850 MCRS and QSK60G engines, the 4007602 Lock Nut plays a similar role. These engines are designed for heavy-duty applications, and the lock nut is essential in maintaining the integrity of the engine’s components under strenuous conditions. The MCRS variant, with its specific regulatory compliance, also benefits from the added security provided by this part.

QSK78 CM500 Engine

The QSK78 CM500 engine, another member of the QSK series, utilizes the 4007602 Lock Nut to ensure that fasteners remain tight and secure. This engine is engineered for high-performance applications, and the lock nut is a key component in its design, helping to maintain operational efficiency and reliability.

QSK95 CM2350 K113 Engine

The 4007602 Lock Nut is also compatible with the QSK95 CM2350 K113 engine. This engine is part of Cummins’ advanced lineup, designed for the most demanding applications. The lock nut ensures that all critical fasteners are held firmly in place, contributing to the engine’s overall durability and performance.

Role of the 4007602 Lock Nut in Engine Systems

The 4007602 Lock Nut is an essential component in securing various engine system assemblies and ensuring the integrity and efficiency of the engine’s operation.

In the location system, the Lock Nut is used to firmly attach sensors and gauges to their designated positions. This secure attachment is vital for accurate readings and reliable performance of these components.

For the oil level gauge, the Lock Nut plays a significant role in maintaining the gauge’s position and ensuring it provides consistent and accurate oil level readings. This is important for monitoring the engine’s lubrication system and preventing potential damage from low oil levels.

In the oil pan top level assembly adapter, the Lock Nut is employed to ensure a tight and leak-proof connection. This is essential for maintaining the oil pan’s integrity and preventing oil leaks, which could lead to engine damage.

Within the plumbing systems for both aftercooler water and intercooler water, the Lock Nut is used to secure fittings and connections. This ensures that the cooling water flows smoothly and efficiently through the system, enhancing the engine’s performance and longevity.

In the system related to auxiliary cooling, the Lock Nut is utilized to secure additional cooling components and ensure they operate effectively. This helps in maintaining optimal engine temperatures and preventing overheating, which is crucial for the engine’s overall health and efficiency.

Conclusion

The 4007602 Lock Nut is a vital component in the maintenance and operation of commercial trucks, particularly those equipped with Cummins engines. Its design and features ensure secure fastening in environments prone to vibrations and rotational forces, contributing to the safety, performance, and reliability of the vehicle. Proper installation, regular maintenance, and understanding its compatibility with various Cummins engines are key to maximizing the benefits of this part.