139990
Plain Washer
Cummins®

The 139990 Plain Washer, a component manufactured by Cummins, is designed for use in commercial trucks. This washer is integral to the mechanical systems of these vehicles, contributing to their operation and efficiency. Cummins, a reputable manufacturer in the automotive industry, is known for producing high-quality components that enhance vehicle performance ¹.

Basic Concepts of Plain Washers

Plain washers are fundamental components in mechanical systems. Typically flat and annular, they are placed between a fastener and the surface it secures. Their primary function is to distribute the load of the fastener more evenly across the surface, preventing damage and ensuring a secure fit. These washers are commonly made from materials such as steel, stainless steel, or brass, each offering distinct properties like strength, corrosion resistance, and conductivity ².

Purpose of the 139990 Plain Washer in Truck Operations

In commercial trucks, the 139990 Plain Washer enhances the distribution of load from fasteners, reducing the risk of surface damage and ensuring a stable connection. This contributes to the overall functionality and efficiency of the truck, as secure fastening is crucial for the integrity of many components and systems within the vehicle ³.

Key Features of the 139990 Plain Washer

The 139990 Plain Washer is characterized by its specific design and material composition, crafted to meet the demanding requirements of commercial truck applications. The washer’s material ensures durability and resistance to wear, while its design allows for optimal load distribution. These features distinguish it from other plain washers, making it suitable for the rigorous conditions encountered in truck operations.

Benefits of Using the 139990 Plain Washer

Incorporating the 139990 Plain Washer into truck maintenance and repair offers several advantages. Its design and material composition contribute to improved performance, enhanced durability, and increased reliability of the fastening systems in which it is used. This can lead to reduced maintenance needs and longer-lasting connections in the vehicle’s mechanical systems.

Installation and Usage Guidelines

Proper installation of the 139990 Plain Washer is key to ensuring its effectiveness. It should be placed between the fastener and the surface, with care taken to ensure it is correctly aligned and seated. Following manufacturer guidelines for torque settings and usage will help maintain the washer’s integrity and performance. Regular checks during maintenance routines can also ensure that the washer remains in good condition.

Troubleshooting and Maintenance

Common issues with plain washers include wear, deformation, or failure due to excessive load or environmental factors. Regular inspection during maintenance can help identify these issues early. To prolong the life of the 139990 Plain Washer and ensure efficient operation, it is important to replace it if signs of wear or damage are detected. Additionally, ensuring that fasteners are correctly torqued and that the washer is used in the appropriate applications will contribute to its longevity.

Cummins: A Brief Overview

Cummins is a renowned manufacturer in the automotive components industry, with a history of innovation and quality. The company is committed to producing components that meet the high demands of commercial and industrial applications. Cummins’ reputation for reliability and performance is built on its dedication to quality control, research, and development in the field of automotive manufacturing.

Compatibility of Plain Washer Part 139990 with Cummins Engines

This Cummins part is designed to fit a variety of Cummins engines. Below is a detailed description of its compatibility with the specified engines:

• GTA38 G CMEICS G116C, K38, K50, KTA38GC CM558: This part is crucial for maintaining the integrity of the engine’s sealing and alignment.
• QSK38 CM2150 MCRS, QSK38 CM850 MCRS: It is used in various parts of the engine to provide a secure seal and to maintain the correct positioning of engine parts.
• QSK50 CM2150 K107, QSK50 CM2150 MCRS, QSK50 CM2350 K108: The washer is used to ensure that all components are properly aligned and sealed.

By ensuring that this part is correctly installed, engine performance can be maintained, and potential issues such as leaks and misalignments can be avoided.

Role of Part 139990 Plain Washer in Engine Systems

In engine systems, the 139990 Plain Washer serves as a fundamental component, ensuring the smooth operation and longevity of various assemblies. Its role is particularly significant in the following components:

• Assembly Cylinder Block: Facilitates proper alignment and spacing between components.
• Assy, Short Block K50G3: Maintains correct clearances between moving parts.
• Base Part and Base Parts: Provides necessary support and stability.
• Block, Cylinder, and Cylinder Block: Secures components in place.
• Cylinder Block Assembly and Cylinder Block Kit: Contributes to the precise fitting of components.
• Cylinder Short Block: Aids in the proper installation and alignment of components.
• EBM-Block: Ensures components are correctly spaced and aligned.
• Engine and Long Block Assy. - 50: Vital for the proper functioning of the engine.
• Main Bearings: Used in conjunction with main bearings to ensure proper clearance and alignment.
• Part, Base, and Parts Base: Provides necessary support and stability.
• Short Block Assembly and Short Block Assy. -K38, -K50: Ensures the correct fitting and alignment of components.

Conclusion

The 139990 Plain Washer is a critical component in the maintenance and operation of commercial trucks and Cummins engines. Its proper installation and maintenance are essential for ensuring the efficiency, reliability, and longevity of these mechanical systems.