3165974
Lock Washer
Cummins®

The Cummins Part #3165974 Lock Washer is a specialized component designed for use in commercial trucks. Its primary function is to enhance the security of bolted connections, ensuring that fasteners remain tight under dynamic and high-stress conditions commonly encountered in heavy-duty applications.

Basic Concepts of Lock Washers

Lock washers are mechanical devices used in fastening systems to prevent loosening of nuts and bolts. They operate by applying additional pressure to the components being joined, creating friction that resists vibration and movement. This is achieved through various designs, such as split lock washers, which have a gap that creates a spring effect, or serrated lock washers, which dig into the surfaces they contact ¹.

Purpose of the Cummins Part #3165974 Lock Washer

This Cummins part is engineered to play a specific role in the operation and maintenance of commercial trucks. It ensures secure fastening in environments where vibrations and dynamic loads are prevalent. By preventing fasteners from loosening, it contributes to the overall reliability and safety of the vehicle ².

Key Features

This part is constructed from high-quality materials, typically steel, to withstand the rigors of commercial truck applications. Its design includes features such as a split configuration that provides a spring effect, enhancing its ability to maintain pressure on the fastener. Additionally, the washer may have serrated edges to further increase friction and resistance to loosening ³.

Benefits

Using this part offers several advantages. It provides improved fastening security, which is vital in applications where vibrations are common. The washer’s design also offers resistance to loosening over time, contributing to the longevity of the fastening system. Furthermore, its durability in harsh conditions ensures that it can withstand the demanding environments typical of commercial truck operations.

Installation Guidelines

To install the Cummins Part #3165974 Lock Washer correctly, follow these steps:

1. Ensure the surface where the washer will be placed is clean and free of debris.
2. Position the lock washer under the nut or bolt head, ensuring the split or serrated side is in contact with the surface.
3. Tighten the fastener to the manufacturer’s specified torque settings, ensuring the washer is properly seated and functioning as intended.

Troubleshooting and Maintenance

Common issues with lock washers include deformation or failure due to excessive stress or corrosion. To troubleshoot these problems, inspect the washer for signs of wear or damage and replace it if necessary. Regular maintenance, such as cleaning and inspecting the washer and its associated fasteners, can help prolong its life and ensure continued reliable performance.

Compatibility and Application

The Cummins Part #3165974 Lock Washer is designed for use in various commercial truck systems. It is compatible with a range of fasteners and is often used in critical applications where secure fastening is paramount. Specific components or assemblies it is designed to work with may include engine mounts, suspension systems, and other high-stress areas.

Manufacturer Overview - Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and aftermarket parts. With a strong reputation in the commercial truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range and expertise make it a trusted partner for commercial vehicle operators and maintenance professionals.

Cummins Lock Washer 3165974 Compatibility

The Cummins Lock Washer part number 3165974 is designed to be a critical component in the assembly and maintenance of various Cummins engines. This part is engineered to ensure secure fastening, preventing loosening of bolts and screws due to vibration or other operational stresses.

N14 MECHANICAL Engines

In the N14 MECHANICAL engines, the Lock Washer 3165974 is utilized in several key areas where secure fastening is paramount. It is often employed in conjunction with critical engine components to maintain the integrity of the assembly, ensuring that bolts and screws remain tightly fastened throughout the engine’s operation.

NH/NT 855 Engines

Similarly, in the NH/NT 855 engines, the Lock Washer 3165974 plays a vital role in maintaining the structural integrity of the engine. This part is strategically placed in locations where it can effectively prevent loosening, contributing to the overall reliability and performance of the engine.

By providing a secure fit, the Lock Washer 3165974 helps to maintain the alignment and stability of various engine components, ensuring that the engine operates smoothly and efficiently.

Role of Part 3165974 Lock Washer in Engine Systems

The part 3165974 Lock Washer is an essential component in ensuring the secure and reliable assembly of various engine systems. Its primary function is to prevent loosening of fasteners due to vibration and thermal expansion, which are common in engine environments.

Heat Exchanger and Radiator Systems

In heat exchanger and radiator systems, the lock washer is used alongside bolts and nuts to secure the connections between the radiator and the engine block. This ensures that the coolant flow is uninterrupted and that there are no leaks, which could lead to engine overheating. The lock washer’s role here is to maintain a tight seal under varying thermal conditions.

Auxiliary Cooling System

Within the auxiliary cooling system, the lock washer is employed to secure the mounting of additional cooling components, such as fans or shrouds. These components are often exposed to high vibrations, and the lock washer helps to keep them firmly in place, ensuring efficient cooling performance and longevity of the components.

Engine Installation

During engine installation, the lock washer is critical in securing various engine mounts and brackets. This includes the attachment points for the engine to the chassis and the mounting of ancillary components like the panel guard. The lock washer ensures that these connections remain stable throughout the engine’s operational life, reducing the risk of component failure due to loosening.

Plumbing and Radiator Connections

In the plumbing of the engine’s cooling system, the lock washer is used at connection points between hoses, pipes, and the radiator. This prevents the fittings from becoming loose, which could result in coolant leaks. The lock washer enhances the reliability of these connections, especially in areas where the system experiences significant pressure fluctuations.

Kit and Component Mounting

When installing kits that include various engine components, the lock washer is often part of the fastening solution. Whether it’s securing an aftermarket performance kit or a standard engine component, the lock washer ensures that all parts remain correctly positioned and operational, contributing to the overall efficiency and safety of the engine system.

Conclusion

The Cummins Part #3165974 Lock Washer is a vital component in the maintenance and operation of commercial trucks and various Cummins engines. Its design and features ensure secure fastening in high-stress environments, contributing to the reliability and safety of the vehicle. Proper installation, regular maintenance, and understanding its role in different engine systems are crucial for maximizing its benefits and ensuring the longevity of the fastening system.