3165976
Lock Washer
Cummins®

The Cummins Part #3165976 Lock Washer is a specialized component designed for use in commercial truck maintenance and operation. This lock washer plays a role in ensuring the integrity and reliability of fastening systems within these vehicles. Its design and functionality are tailored to meet the demanding requirements of commercial truck environments, contributing to the overall performance and safety of the vehicle ¹.

Basic Concepts of Lock Washers

Lock washers are a type of washer designed to prevent fastened components from loosening due to vibration or other dynamic forces. Unlike regular washers, which primarily distribute load and prevent damage to the surface, lock washers incorporate features such as split ends, serrations, or conical shapes that bite into the fastened components and the surface they are placed on. This biting action creates friction, which helps to keep the fastener in place ².

Purpose of the Cummins Part #3165976 Lock Washer

The Cummins Part #3165976 Lock Washer is specifically engineered to enhance the fastening systems in commercial trucks. It plays a role in maintaining the security of bolted connections, which is vital for the safe operation of the vehicle. By preventing fasteners from loosening, this lock washer contributes to the structural integrity and reliability of various truck components.

Key Features

The Cummins Part #3165976 Lock Washer is characterized by its unique design and material composition. It is made from high-strength steel, which provides durability and resistance to wear. The lock washer features a split design with bent ends that create a spring-like action, ensuring a tight grip on the fastener and the surface it is installed on. This design is particularly effective in environments where vibrations are common.

Benefits

Using the Cummins Part #3165976 Lock Washer offers several advantages. It provides improved fastening security by preventing fasteners from loosening, which is crucial in the dynamic environment of a commercial truck. The lock washer’s design also offers resistance to vibration, ensuring that connections remain tight under various operating conditions. Additionally, its high-strength material composition contributes to its longevity, making it a reliable choice for harsh commercial truck applications.

Installation Guidelines

To ensure optimal performance and durability, the Cummins Part #3165976 Lock Washer should be installed according to specific guidelines. It is important to place the lock washer under the nut or bolt head, ensuring that the bent ends are in contact with both the fastener and the surface. Proper torque should be applied to the fastener to ensure that the lock washer functions as intended without over-tightening, which could lead to damage.

Troubleshooting and Maintenance

Common issues with lock washers can include deformation or failure to grip properly, which may result from incorrect installation or excessive vibration. Regular inspection of lock washers is recommended to identify any signs of wear or damage. If a lock washer shows signs of deformation or if fasteners appear loose, replacement is advised to maintain the integrity of the fastening system.

Common Applications

The Cummins Part #3165976 Lock Washer is typically used in various applications within commercial truck systems. It is commonly found in engine components, chassis parts, and other critical areas where secure fastening is required. Its versatility and reliability make it a preferred choice for maintaining the structural integrity of commercial trucks.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a history of innovation and commitment to quality, Cummins serves commercial truck, bus, construction, agricultural, and industrial markets. The company’s product range is designed to meet the demanding requirements of these industries, ensuring reliability, performance, and efficiency.

Lock Washer 3165976 Compatibility with Cummins Engines

The Lock Washer 3165976, manufactured by Cummins, is a critical component designed to ensure secure fastening in various engine applications. This part is engineered to maintain the integrity of bolted connections, preventing loosening due to vibration or other dynamic forces. Below is a detailed overview of its compatibility with specific Cummins engines:

K-Series Engines

• K19
• K38
• K50

The Lock Washer 3165976 is compatible with the K-Series engines, including the K19, K38, and K50. These engines are known for their robust design and are often used in heavy-duty applications. The washer’s design ensures that bolts remain tight, which is crucial for maintaining engine performance and safety.

M-Series Engines

• M11 MECHANICAL

The M11 MECHANICAL engine benefits from the use of the Lock Washer 3165976. This engine is widely used in various industries due to its reliability and efficiency. The washer’s role in securing connections helps in maintaining the engine’s operational integrity.

N-Series Engines

• N14 MECHANICAL

The N14 MECHANICAL engine is another application where the Lock Washer 3165976 is essential. This engine is known for its durability and is often used in demanding environments. The washer ensures that all bolted connections remain secure, contributing to the engine’s longevity and performance.

QSN Engines

• QSNT14 CM876 N102

The QSNT14 CM876 N102 engine also utilizes the Lock Washer 3165976. This engine is designed for high-performance applications and requires components that can withstand significant stress and vibration. The washer’s design provides the necessary security to maintain the integrity of bolted connections in this demanding engine.

NH/NT Series Engines

• NH/NT 855

The NH/NT 855 engine is another model that benefits from the Lock Washer 3165976. This engine is known for its versatility and is used in a variety of applications. The washer ensures that all bolted connections remain tight, which is crucial for the engine’s performance and reliability.

By ensuring that bolted connections remain secure, the Lock Washer 3165976 plays a vital role in the overall performance and safety of these Cummins engines. Its compatibility across various engine models underscores its importance in maintaining engine integrity.

Role of Part 3165976 Lock Washer in Engine Systems

The part 3165976 Lock Washer is an essential component in ensuring the secure attachment and stability of various engine system components. Its primary function is to prevent loosening of fasteners due to vibration and thermal expansion, which are common in engine environments.

Accessories and Electric Starting

In the context of accessories and electric starting systems, the Lock Washer is used to secure the mounting of electric starters. It ensures that the starter remains firmly attached to the engine block, preventing any disengagement that could lead to starting failures.

Exhaust Outlet and Connection

For the exhaust outlet and its connections, the Lock Washer plays a significant role in maintaining the integrity of the exhaust system. It is employed in the fastening of exhaust manifold bolts, ensuring that the manifold remains securely attached to the engine block. This prevents exhaust leaks, which can lead to performance issues and increased emissions.

Drive and Fan Systems

In drive systems, particularly those involving fan brackets, guards, and hubs, the Lock Washer is critical. It is used in the attachment of fan brackets to the engine, ensuring that the fan remains aligned and operational. Similarly, for fan guard and hub assemblies, the Lock Washer secures these components, preventing any wobbling or misalignment that could affect cooling efficiency.

Idler Pulley and Engine Installation Kit

The Lock Washer is also integral in the installation of idler pulleys, which are part of the engine’s belt drive system. It ensures that the pulley remains fixed in place, maintaining belt tension and alignment. In engine installation kits, the Lock Washer is used in various mounting points, providing additional security to the engine’s attachment to the vehicle’s frame.

Muffler and Oil Pan

In the muffler attachment to the exhaust system, the Lock Washer ensures a tight and secure fit, preventing any unwanted noise or emissions leaks. For the oil pan, it is used in the fastening of the pan to the engine block, ensuring that the pan remains sealed and does not shift, which could lead to oil leaks.

Plumbing and Radiator

In plumbing and radiator systems, the Lock Washer is used in the connection of hoses and pipes to the radiator. This ensures a leak-proof seal, maintaining the integrity of the cooling system. It is also used in the mounting of the radiator to the vehicle, ensuring that it remains securely in place.

Conclusion

In summary, the part 3165976 Lock Washer is a versatile component that enhances the reliability and performance of various engine systems by ensuring that critical components remain securely fastened. Its role in preventing fastener loosening due to vibration and thermal expansion is crucial for maintaining the integrity and safety of engine systems.