3421000
Plain Washer
Cummins®

Introduction

The Cummins 3421000 Plain Washer is a component integral to the maintenance and operation of commercial trucks. It is designed to enhance the efficiency and reliability of truck systems by ensuring even load distribution and alignment of parts. Understanding its function and significance is essential for professionals involved in truck maintenance and repair.

Basic Concepts of Plain Washers

Plain washers are fundamental components in mechanical systems, primarily used to distribute loads evenly across surfaces to prevent damage from concentrated stress points ¹. They also provide vibration damping and help maintain alignment between parts, contributing to the durability and performance of mechanical assemblies.

Role of the 3421000 Plain Washer in Truck Operation

This Cummins part plays a crucial role in commercial truck systems by ensuring even load distribution and alignment in fastening applications. It is used with bolts and nuts to spread the applied force evenly across connected parts, maintaining assembly integrity and prolonging component lifespan.

Key Features of the 3421000 Plain Washer

The Cummins 3421000 Plain Washer is designed for heavy-duty applications, featuring high-strength materials like steel or stainless steel ². Its dimensions are precisely engineered for specific applications, with a flat surface for even load distribution and smooth edges to protect mating surfaces.

Benefits of Using the 3421000 Plain Washer

Utilizing this part offers several advantages, including durability under heavy-duty conditions, improved load distribution, and reduced maintenance needs. Its design helps prevent component damage and maintains alignment, extending the service life of truck parts.

Troubleshooting and Maintenance Suggestions

Regular inspection for wear or deformation is crucial for maintaining truck systems. Replacing damaged washers and keeping them clean can ensure longevity and performance. Proper maintenance practices are essential to prevent issues related to plain washers.

Installation Guidelines

Proper installation of the Cummins 3421000 Plain Washer involves cleaning surfaces, using the correct tools, and following best practices to avoid over-tightening, which could lead to washer failure or damage to connected parts.

Common Applications

This part is used in various applications within commercial trucks, including engine, transmission, and chassis assemblies. Its use in these critical areas highlights the importance of high-quality washers for the reliability and performance of truck systems.

About Cummins

Cummins Inc. is a global leader in power solutions, including engines, filtration, and emissions solutions. The company serves customers in approximately 190 countries, demonstrating a commitment to quality and innovation in the automotive and heavy-duty truck industries.

Compatibility with Cummins Engines

The Cummins 3421000 Plain Washer is compatible with various Cummins engine models, including QSV81G, QSV91G, QSW/QSV82, QSW27, QSW36, and QSW73. Its role in these engines is to maintain assembly integrity and prevent friction and wear between moving parts.

Role in Engine Systems

This part is integral to the efficient operation of engine systems, including fuel injection, engine oil, cylinder head, cam and rocker, valve tappet assemblies, and oil fill arrangements. It ensures proper spacing, alignment, and operation of these systems, contributing to engine performance and longevity.

Conclusion

The Cummins 3421000 Plain Washer, though a small component, plays a significant role in the efficient operation and maintenance of commercial truck and engine systems. Its application across various assemblies underscores its versatility and importance in ensuring the reliability and performance of these systems.