4006240
Plain Washer
Cummins®

Introduction

The Cummins 4006240 Plain Washer is a component designed for heavy-duty truck applications. It contributes to the efficiency and reliability of the vehicle by serving specific functions within the mechanical systems of trucks. This washer is part of Cummins Inc.’s range of truck components, known for their quality and durability.

Basic Concepts of Plain Washers

Plain washers are simple yet vital components in mechanical systems. They are typically flat, annular devices made from metal or other materials. Their primary function is to distribute the load of a threaded fastener, such as a bolt or screw, over a larger area. This helps prevent damage to the surfaces being joined and can also provide a degree of cushioning or vibration damping. Additionally, plain washers can play a role in maintaining proper alignment and spacing between components ¹.

Purpose of the Cummins 4006240 Plain Washer

The Cummins 4006240 Plain Washer is specifically engineered to serve various roles within a truck’s mechanical system. It is commonly used in conjunction with bolts and nuts to secure components, ensuring that the load is evenly distributed across the surface. This washer can be found in applications such as engine mounts, transmission assemblies, and chassis components, where it contributes to the structural integrity and longevity of the truck.

Key Features

The Cummins 4006240 Plain Washer is characterized by several key features that make it suitable for heavy-duty applications. It is typically made from a durable material, such as steel, which provides resistance to wear and corrosion. The washer has precise dimensions, ensuring a proper fit with other components. Its design is simple yet effective, allowing it to perform its function reliably under demanding conditions.

Benefits of Using Cummins 4006240 Plain Washer

Utilizing the Cummins 4006240 Plain Washer offers several advantages. Its design helps in distributing loads more evenly, which can reduce the risk of damage to the surfaces being joined. The material composition ensures durability and resistance to wear and corrosion, contributing to the longevity of the components it is used with. Additionally, the washer can aid in maintaining proper alignment and spacing, which is crucial for the optimal performance of mechanical systems ².

Installation Considerations

When installing the Cummins 4006240 Plain Washer, it is important to follow guidelines and best practices to ensure optimal performance. This includes using the correct torque specifications for the fasteners it is used with, to avoid over-tightening or under-tightening. Proper alignment of the washer with the components it is securing is also crucial. Ensuring that the washer is seated correctly can help in achieving the desired load distribution and structural integrity.

Troubleshooting and Maintenance

Common issues with plain washers can include wear, corrosion, or improper installation. Regular inspection can help in identifying these problems early. If a washer shows signs of wear or corrosion, it should be replaced to maintain the integrity of the mechanical system. Proper maintenance, including cleaning and lubrication where applicable, can help prolong the lifespan of the washer ³.

Compatibility and Applications

The Cummins 4006240 Plain Washer is designed to be compatible with a range of truck models and components. Its applications extend to various truck systems, where it plays a role in securing and aligning components. Ensuring compatibility with specific truck models and components is important for optimal performance and longevity.

Manufacturer Information - Cummins

Cummins Inc. is a well-established manufacturer in the automotive industry, with a reputation for quality and innovation in truck components. The company has a history of producing reliable and durable parts, and the Cummins 4006240 Plain Washer is a testament to their commitment to excellence in manufacturing.

Cummins Engine Part 4006240: Plain Washer Application

The Cummins part 4006240, a Plain Washer, is a component in the assembly of several engine models. This part is designed to provide a smooth and even surface for sealing and to prevent leaks in various engine systems. Below is a detailed description of how this part fits into the specified engines.

B3.3 Engines

The B3.3 engine series utilizes the Plain Washer in several key areas. It is commonly found in the fuel system, where it ensures a tight seal between the fuel pump and the engine block. Additionally, it is used in the cooling system to maintain the integrity of the seal between the water pump and the engine block. This washer is also employed in the oil system to ensure a proper seal between the oil filter and the engine block, preventing oil leaks.

QSB3.3 CM2150 and QSB3.3 CM2250 EC Engines

In the QSB3.3 CM2150 and QSB3.3 CM2250 EC engines, the Plain Washer is integral to the engine’s overall functionality. It is used extensively in the fuel injection system, where it ensures a tight seal between the injector and the engine block. This is crucial for maintaining the engine’s performance and efficiency. Furthermore, the washer is employed in the cooling system to maintain the seal between the thermostat housing and the engine block. It is also used in the oil system to ensure a proper seal between the oil pan and the engine block, preventing oil leaks.

QSK78 CM500 Engine

The QSK78 CM500 engine incorporates the Plain Washer in several critical areas. It is used in the fuel system to ensure a tight seal between the fuel injector and the engine block. This is essential for maintaining the engine’s performance and efficiency. Additionally, the washer is employed in the cooling system to maintain the seal between the water pump and the engine block. It is also used in the oil system to ensure a proper seal between the oil filter and the engine block, preventing oil leaks.

Role of Part 4006240 Plain Washer in Engine Systems

In the intricate world of engine systems, the part 4006240 Plain Washer plays a significant role in ensuring the smooth operation and longevity of various components. This unassuming yet vital component is integral to the functionality of several key engine parts.

Air Intake Manifold

Within the air intake manifold, the 4006240 Plain Washer is often used to secure gaskets or seals. Its role here is to maintain a tight seal, preventing air leaks that could disrupt the air-fuel mixture and affect engine performance.

Cam Follower Assembly and Camshaft

In the cam follower assembly and on the camshaft, the Plain Washer serves as a spacer or shim. It ensures proper clearance and alignment between moving parts, which is essential for the precise operation of the valve train.

Connecting Rod and Piston

When used in conjunction with the connecting rod and piston, the 4006240 Plain Washer helps in maintaining the correct spacing and reducing friction between components. This is vital for the efficient transfer of power from the piston to the crankshaft.

Cover and Cam Follower

In covers and cam followers, the Plain Washer acts as a protective layer, shielding sensitive components from wear and tear. It also aids in distributing loads evenly, which is crucial for the durability of these parts.

Cylinder Head and Cylinder Head Kit

Within the cylinder head and cylinder head kit, the Plain Washer is employed to secure bolts and maintain the integrity of the combustion chamber. It ensures that the cylinder head remains firmly attached to the engine block, preventing any potential leaks.

Electronic Control Module Kit and Fuel Control Module

In electronic control module kits and fuel control modules, the Plain Washer is used to insulate and space electrical components. This ensures reliable electrical connections and protects sensitive circuitry from physical damage.

Fuel Manifold and Injector

The fuel manifold and injector systems benefit from the Plain Washer by ensuring that fuel lines and fittings are securely attached. This prevents fuel leaks and maintains consistent fuel delivery to the engine.

Gauge and Oil Level

In oil level gauges, the Plain Washer helps in securing the gauge mechanism, ensuring accurate readings and reliable operation. It plays a role in maintaining the integrity of the oil level monitoring system.

Head and Cylinder

For the head and cylinder assembly, the Plain Washer is crucial in maintaining the proper spacing and alignment of components. This ensures efficient combustion and reduces the risk of engine knocking or misfires.

Injector Kit and Injector Plumbing

In injector kits and injector plumbing, the Plain Washer is used to secure injector fittings and ensure a leak-free connection. This is essential for precise fuel injection and overall engine performance.

Module and Fuel Control

Within fuel control modules, the Plain Washer aids in the secure mounting of various components, ensuring that the module operates within specified parameters and delivers consistent fuel control.

Performance Parts

In performance parts, the 4006240 Plain Washer is often utilized to enhance the durability and reliability of high-stress components. It helps in maintaining the integrity of performance-oriented engine modifications.

Conclusion

The 4006240 Plain Washer, though small in size, plays a substantial role in the operation and maintenance of various engine components. Its applications across different systems highlight its versatility and importance in ensuring the overall efficiency and reliability of engine performance.