205126
Plain Washer
Cummins®

The 205126 Plain Washer, manufactured by Cummins, is a component integral to the mechanical systems of commercial trucks. This washer contributes to the efficiency and reliability of vehicles by ensuring proper load distribution from fasteners to secured surfaces. Cummins, a reputable manufacturer in the commercial truck industry, offers this washer as part of its extensive product range designed to meet the demanding requirements of commercial trucking ¹.

Basic Concepts of Plain Washers

Plain washers are fundamental components in mechanical systems, serving to distribute load and prevent surface damage under bolt heads or nuts. They operate by providing a barrier between the fastener and the surface, ensuring even pressure distribution. Materials commonly used include steel, stainless steel, and various alloys, each offering unique properties such as strength, corrosion resistance, and durability ².

Purpose of the 205126 Plain Washer

This Cummins part ensures the proper distribution of load from fasteners to surfaces, contributing to the assembly and functionality of truck components. Its design and material composition are tailored to withstand the stresses and environmental factors encountered in commercial truck applications, preventing surface damage and ensuring fastener security under varying conditions ³.

Key Features

The 205126 Plain Washer is characterized by its high-strength material composition and efficient design for load distribution. It is crafted from materials that offer resistance to wear and corrosion, ensuring durability in demanding truck applications. This design is crucial for maintaining the integrity of truck assemblies over time.

Benefits of Using the 205126 Plain Washer

Incorporating this part into truck assemblies enhances load distribution, preventing surface damage and ensuring fastener security. Its resistance to wear and corrosion contributes to longevity, reducing the need for frequent replacements. Additionally, its design aids in maintaining the structural integrity of truck components under various operating conditions.

Installation Guidelines

Proper installation of the 205126 Plain Washer involves placing it under the bolt head or nut before tightening. It is important to ensure correct alignment and seating to achieve desired load distribution and fastening security. Best practices include checking for washer damage before installation and avoiding over-tightening to prevent deformation or failure.

Troubleshooting and Maintenance

Common issues with the 205126 Plain Washer may include deformation, corrosion, or failure to properly distribute load. Early identification of these issues can prevent more significant problems within the truck’s mechanical systems. Maintenance tips include regular inspection for wear or corrosion, ensuring proper alignment during installation, and replacing the washer if it shows signs of damage or if fasteners become loose.

Cummins: A Brief Overview

Cummins is a renowned manufacturer in the commercial truck industry, known for producing high-quality engines and components. Their product range includes various parts designed to enhance the performance, reliability, and efficiency of commercial trucks. Cummins’ reputation for quality and innovation makes their components, like the 205126 Plain Washer, a preferred choice for truck manufacturers and maintenance professionals.

Application of Cummins Engine Part 205126: Plain Washer

The Cummins Plain Washer part number 205126 is utilized in various engine configurations to provide a smooth, even surface for sealing and to prevent friction between moving parts. Below is a detailed description of how this washer fits with the listed engines:

K-Series Engines

• K19
• K38
• K50

In the K-Series engines, including K19, K38, and K50, this washer is used in areas requiring precise sealing and minimal friction, such as in the fuel injection system and other high-pressure environments.

KTA-Series Engines

• KTA19GC
• KTA19GC CM558
• KTA38GC CM558

For the KTA-Series engines, the 205126 Plain Washer is integral to maintaining the integrity of the engine’s sealing systems, ensuring a tight seal in the turbocharger and exhaust systems.

QSK-Series Engines

• QSK19 CM2350 K105
• QSK19 CM2350 K114
• QSK19 CM2350 K144G
• QSK19 CM500
• QSK19 CM850 MCRS
• QSK19G
• QSK38 CM2150 MCRS
• QSK38 CM850 MCRS
• QSK45 CM500
• QSK50 CM2150 K107
• QSK50 CM2150 MCRS
• QSK50 CM2350 K108

In the QSK-Series engines, this washer is crucial for maintaining high-pressure seals in the fuel system, oil system, and other critical areas, ensuring optimal performance and longevity by preventing leaks and reducing friction.

6B5.9 and GTA38 G CMEICS G116C

Although not explicitly listed for these engines, the 205126 Plain Washer’s design and functionality make it suitable for similar sealing and friction-reduction applications within these engine models, contributing to engine efficiency and durability.

Role of Part 205126 Plain Washer in Engine Systems

In engine systems, the 205126 Plain Washer serves as a fundamental component, ensuring the smooth operation and longevity of various engine parts. Its application spans across multiple components, contributing to the overall efficiency and reliability of the engine.

Aftercooler Core and Plumbing

In the aftercooler core and its associated plumbing, this washer maintains proper spacing and alignment between components, ensuring optimal cooling of the compressed air, which is vital for enhancing engine performance and reducing the risk of overheating.

Short Block K50G3 and Base Parts

In the short block K50G3 and base parts, the Plain Washer secures and spaces critical components, maintaining the structural integrity of the block and ensuring that all parts are correctly aligned and function as intended.

Block, Cylinder, and Camshaft

The Plain Washer is integral in the assembly of the block, cylinder, and camshaft, providing necessary clearance and reducing friction between moving parts, which is essential for the smooth operation of the engine. In camshaft mounting, it ensures precise valve timing.

Clutch and Rear Cover Plate

In the clutch and rear cover plate assemblies, the 205126 Plain Washer aids in distributing load and reducing wear on contacting surfaces, which is particularly important in high-stress areas where consistent performance and durability are required.

Crankshaft and Gear Assemblies

For the crankshaft and gear assemblies, the Plain Washer maintains proper clearance and alignment, which is crucial for the balanced rotation of the crankshaft and the efficient transfer of power through the gears.

Cylinder Head Mounting and Engine Assembly

In cylinder head mounting and the overall engine assembly, the Plain Washer ensures components are securely fastened without excessive pressure, which could lead to deformation or failure. It also helps in managing thermal expansion, contributing to the engine’s stability under varying operating conditions.

Injectors and Performance Parts

The Plain Washer is also found in injectors and various performance parts, where it assists in maintaining the precise fit and function of these components, essential for achieving desired fuel delivery and combustion efficiency.

Piston, Engine, and Turbocharger

In the piston, engine, and turbocharger systems, the 205126 Plain Washer ensures that all moving parts operate within their designed parameters, reducing friction and wear, which is vital for the longevity and performance of these high-stress components.

Service Coupling 2009 Assembly and Short Block Assembly - 50

Finally, in the service coupling 2009 assembly and the short block assembly - 50, the Plain Washer facilitates easy maintenance and repair, allowing for the quick disassembly and reassembly of components, reducing downtime and enhancing the serviceability of the engine.

Conclusion

The 205126 Plain Washer is a versatile and essential component in engine systems, contributing to the efficient and reliable operation of a wide range of engine parts. Its role in ensuring proper load distribution, reducing friction, and maintaining component alignment and integrity is crucial for the performance and longevity of commercial truck engines.