184125
Lockplate
Cummins®

The Cummins 184125 Lockplate is a component designed for use in heavy-duty truck applications. It serves a specific function within the mechanical systems of these vehicles, contributing to the overall reliability and performance of the truck’s engine or transmission.

Basic Concepts of Lockplates

A lockplate, also known as a lock tab or cotter pin, is a thin metal plate used in mechanical systems to secure fasteners such as bolts and nuts. It operates by being bent or deformed around the fastener, preventing it from loosening due to vibration or other forces. In the context of a truck’s engine or transmission, lockplates play a role in maintaining the integrity of connections and ensuring components remain securely fastened during operation ¹.

Purpose of the 184125 Lockplate

This Cummins part is specifically designed to secure fasteners within the engine or transmission system of a truck. Its role is to prevent the loosening of bolts and nuts that are subject to high levels of vibration and stress. By doing so, it helps maintain the proper alignment and function of critical components, contributing to the overall efficiency and reliability of the vehicle ².

Key Features

The 184125 Lockplate is characterized by several design elements that enhance its effectiveness and durability. These include a precise shape that allows it to be easily bent around fasteners, a material composition that provides strength and resistance to corrosion, and a design that ensures a secure fit without damaging the fastener or surrounding components ³.

Benefits

The use of the 184125 Lockplate offers several advantages. It provides enhanced security against component loosening, which can lead to mechanical failures or inefficiencies. Additionally, by ensuring fasteners remain tight, it contributes to the improved reliability and longevity of the associated mechanical parts. This can result in reduced maintenance requirements and increased uptime for the vehicle ⁴.

Installation Process

Installing the 184125 Lockplate requires careful attention to detail to ensure it is properly secured. The process involves selecting the appropriate fastener, positioning the lockplate correctly, and bending it around the fastener to achieve a secure fit. Tools such as pliers may be required to bend the lockplate, and it is important to ensure that the lockplate does not interfere with other components or create undue stress on the fastener.

Common Issues and Troubleshooting

Typical problems with the 184125 Lockplate may include improper installation, which can lead to insufficient security of the fastener, or damage to the lockplate during installation. Troubleshooting steps may involve re-evaluating the installation process, ensuring the correct tools and techniques are used, and inspecting the lockplate for any signs of damage or wear that may affect its performance.

Maintenance Tips

Regular maintenance of the 184125 Lockplate is important to ensure optimal performance and longevity. This includes periodic inspection of the lockplate and associated fasteners to check for signs of loosening or damage. Care procedures may involve cleaning the lockplate and fastener to remove any debris or corrosion that could affect their function, and replacing the lockplate if it shows signs of wear or if the fastener is removed for any reason.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and powertrain-related components. With a history spanning over a century, Cummins has established a reputation for quality, innovation, and reliability in the automotive and heavy-duty truck industry. The company’s product range includes engines, turbochargers, emissions solutions, and aftermarket parts, all designed to meet the demanding requirements of heavy-duty applications.

Cummins Lockplate 184125 Compatibility

The Cummins Lockplate part number 184125 is designed to fit a variety of Cummins engines, ensuring secure and reliable performance across different engine models. Here is a detailed overview of the engines with which this lockplate is compatible:

Medium-Duty Engines

• ISM CM570
• ISX CM570
• QSM11 CM570

These engines are typically used in medium-duty applications, providing robust power and efficiency for various commercial uses.

Heavy-Duty Engines

• K19
• K38
• K50
• L10 CELECT
• L10 MECHANICAL
• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL
• N14 CELECT
• N14 CELECT PLUS
• N14 MECHANICAL
• QSK19 CM500
• QSK45 CM500
• QSK60 CM500
• QST30 CM552

These engines are designed for heavy-duty applications, offering high power output and durability for demanding tasks.

Specialized Engines

• NH/NT 855

This engine is tailored for specialized applications, providing unique features and capabilities suited to specific operational needs.

Industrial Engines

• V28

The V28 engine is engineered for industrial use, delivering reliable performance in various industrial settings.

The Cummins Lockplate 184125 is engineered to ensure compatibility and secure fitment across these diverse engine models, facilitating ease of maintenance and reliability in performance.

Role of Part 184125 Lockplate in Engine Systems

The Part 184125 Lockplate is an essential component that ensures the secure and efficient operation of various engine systems. Its primary function is to maintain the alignment and integrity of rotating components, thereby contributing to the overall performance and reliability of the engine.

Integration with Crankcase Systems

In 2-Cylinder Crankcase and 2-Cylinder Air Compressor Crankcase systems, the Lockplate is used to secure the crankshaft in place. This prevents any unwanted movement that could lead to misalignment or damage to the crankshaft bearings. By ensuring that the crankshaft remains stationary relative to the crankcase, the Lockplate helps maintain the precise timing and balance necessary for smooth engine operation.

Accessory Drive Systems

Within Accessory Drive systems, such as the Front Gear Train Accessory Drive, the Lockplate plays a significant role in securing the drive components. It ensures that the gears and pulleys remain aligned, which is vital for the efficient transfer of power from the engine to auxiliary components like the air compressor or air piston and rod assemblies. This alignment is essential for the consistent performance of these accessories.

Air Compressor Systems

In Air 2-Cylinder Compressor and Air Compressor systems, the Lockplate is instrumental in securing the Compressor Connecting Rod and Compressor Crankcase. By maintaining the structural integrity of these components, the Lockplate ensures that the compressor operates efficiently, delivering consistent air pressure and volume. This is particularly important in systems where the compressor is part of a larger air system, such as those found in industrial or automotive applications.

Piston and Connecting Rod Assemblies

For Piston and Connecting Rod Air Compressor systems, the Lockplate is used to secure the connecting rod to the crankshaft. This ensures that the piston moves smoothly within the cylinder, without any undue stress or misalignment. The Lockplate’s role here is to enhance the durability and efficiency of the compressor, ensuring that it can withstand the rigors of continuous operation.

EBM Compressor Systems

In EBM Compressor, Air systems, the Lockplate is employed to secure various components within the compressor assembly. Whether it’s the EBM: Compressor, Air Piston and Connecting Rod Air Compressor, or the Crankcase Two Cylinder, the Lockplate ensures that all moving parts remain aligned and operate harmoniously. This is particularly important in high-performance applications where precision and reliability are paramount.

Overall Engine Performance

Across all these systems, the Part 184125 Lockplate contributes to the engine’s overall performance by ensuring that rotating and moving parts remain securely in place. This not only enhances the efficiency of the engine but also extends its operational lifespan by reducing wear and tear on critical components.

Conclusion

The Cummins 184125 Lockplate is a critical component in the maintenance and operation of heavy-duty truck engines. Its design and functionality ensure that fasteners remain securely in place, contributing to the reliability and efficiency of the engine. Proper installation, regular maintenance, and understanding its role within various engine systems are essential for maximizing the benefits of this part.