3043642
Spring Washer
Cummins®

Introduction

The Cummins 3043642 Spring Washer is a specialized component designed for use in commercial trucks. Its primary role is to enhance the reliability and efficiency of bolted connections within the truck’s mechanical systems. By ensuring consistent bolt tension and preventing loosening, this Cummins part contributes to the overall performance and safety of the vehicle.

Basic Concepts of Spring Washers

Spring washers, also known as lock washers, are mechanical devices used to prevent fastening elements, such as bolts and nuts, from loosening due to vibration or other dynamic forces. They achieve this by exerting a spring force that maintains tension on the fastener. Spring washers come in various designs, including split-lock, helical, and wave washers, each suited to different applications based on the level of tension required and the environment in which they operate ¹.

Purpose of the Cummins 3043642 Spring Washer

The Cummins 3043642 Spring Washer is specifically engineered to play a role in maintaining bolt tension within a truck’s mechanical systems. It is designed to counteract the effects of vibration and dynamic loads that can cause bolts to loosen over time. By ensuring that bolts remain securely fastened, this spring washer helps to maintain the integrity of critical connections, thereby enhancing the safety and reliability of the truck ².

Key Features

The Cummins 3043642 Spring Washer is characterized by several key features that enhance its performance. It is typically made from high-strength materials, such as spring steel, to withstand the rigors of commercial truck operation. The design of the washer includes a helical shape that provides consistent spring force, ensuring effective locking action. Additionally, its precise manufacturing tolerances ensure compatibility with a wide range of bolt sizes and thread pitches.

Benefits

Utilizing the Cummins 3043642 Spring Washer offers several advantages in truck maintenance and operation. Its design contributes to improved reliability by preventing bolt loosening, which can lead to component failure or increased wear. The durability of the washer ensures long-term performance, reducing the need for frequent replacements. Furthermore, by maintaining secure fastenings, this spring washer enhances the efficiency of truck operations, minimizing downtime and maintenance costs ³.

Installation Guidelines

Proper installation of the Cummins 3043642 Spring Washer is crucial for ensuring optimal performance and longevity. To install, place the spring washer under the bolt head or nut, ensuring it is correctly oriented to exert the spring force. Tighten the bolt to the manufacturer’s specified torque settings to achieve the desired tension. It is important to verify that the washer is not damaged during installation, as this could compromise its effectiveness.

Common Applications

The Cummins 3043642 Spring Washer is commonly used in various applications within commercial truck systems. It is frequently employed in the fastening of engine components, transmission parts, and chassis assemblies where vibration and dynamic loads are prevalent. Its versatility makes it suitable for a wide range of bolted connections, contributing to the overall reliability of the truck.

Troubleshooting and Maintenance

Identifying and resolving common issues related to the Cummins 3043642 Spring Washer can help prolong its lifespan and maintain its effectiveness. Regular inspection for signs of wear or deformation is recommended. If a washer appears damaged or shows signs of fatigue, it should be replaced to ensure continued secure fastening. Additionally, ensuring that bolts are tightened to the correct torque specifications during installation can prevent over-tightening, which may lead to washer failure.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established itself as a trusted name in the automotive and heavy-duty truck industry. The company is committed to innovation, quality, and customer satisfaction, providing a wide range of products and services that meet the demanding requirements of commercial transportation.

Spring Washer 3043642 Compatibility with Cummins Engines

The Spring Washer part number 3043642, manufactured by Cummins, is a versatile component that fits into various Cummins engine models. This part is essential for ensuring proper assembly and functionality across a range of engine types. Below is a detailed look at the engines with which this spring washer is compatible.

K-Series Engines

• K19
• K38
• K50

The K-Series engines, including the K19, K38, and K50, are known for their robust design and reliability. The Spring Washer 3043642 is integral to these engines, providing necessary support and ensuring the correct alignment of various components.

N14 Engines

• N14 CELECT
• N14 MECHANICAL

The N14 engines, both CELECT and MECHANICAL variants, benefit from the use of the Spring Washer 3043642. This part plays a role in maintaining the integrity of the engine’s assembly, ensuring that all parts function smoothly and efficiently.

QSK Engines

• QSK19 CM850 MCRS
• QSK50 CM2150 MCRS
• QSK50 CM2350 K108

The QSK engines, such as the QSK19 CM850 MCRS, QSK50 CM2150 MCRS, and QSK50 CM2350 K108, are high-performance engines designed for demanding applications. The Spring Washer 3043642 is a component in these engines, contributing to their durability and operational efficiency.

Other Cummins Engines

• NH/NT 855
• V28

The NH/NT 855 and V28 engines also utilize the Spring Washer 3043642. This part is essential for these engines, ensuring that all components are held securely in place, which is vital for the engines’ overall performance and longevity.

By integrating the Spring Washer 3043642 into these various engine models, Cummins ensures that each engine operates at peak efficiency, maintaining the high standards of quality and reliability for which the brand is known.

Role of Part 3043642 Spring Washer in Engine Systems

The 3043642 Spring Washer is a component in various engine systems, providing stability and maintaining the integrity of connections and mountings. Its application spans across several key components, ensuring optimal performance and longevity.

Aftercooler Mounting and Core

In the aftercooler mounting system, the 3043642 Spring Washer is utilized to secure the aftercooler mounting core. This ensures that the core remains firmly in place, reducing the risk of vibrations that could lead to misalignment or failure. The washer’s spring properties help absorb any minor movements, maintaining a tight and secure fit.

Air Intake Manifold and Manifold Assembly

Within the air intake manifold and air manifold assembly, the 3043642 Spring Washer plays a role in connecting various sections of the manifold. It helps to maintain a consistent pressure distribution across the manifold, ensuring efficient airflow to the engine cylinders. This results in improved engine performance and reliability.

Air Starter and Mounting

For the air starter and its mounting, the 3043642 Spring Washer is critical in securing the starter to its mounting points. This ensures that the starter operates smoothly without any undue stress on the mounting brackets. The washer’s design allows for slight adjustments, accommodating thermal expansion and contraction without compromising the starter’s functionality.

Heat Shield and Turbocharger Arrangement

In the arrangement of the heat shield and turbocharger, the 3043642 Spring Washer is employed to maintain the proper spacing and alignment. This is vital for the heat shield’s effectiveness in protecting nearby components from excessive heat. Additionally, it ensures that the turbocharger operates within its designed parameters, enhancing overall engine efficiency.

Camshaft and Gear Connection

The connection between the camshaft and gear benefits from the use of the 3043642 Spring Washer. It helps to maintain the precise alignment required for smooth operation, reducing wear and tear on both the camshaft and gear. This contributes to the longevity and reliability of the engine’s valve train system.

Exhaust Outlet and Elbow

In the exhaust connection mounting and exhaust elbow, the 3043642 Spring Washer ensures a secure and leak-free connection. This is important for maintaining the integrity of the exhaust system, preventing any escape of harmful emissions and ensuring that the engine operates within environmental regulations.

Generator Control Panel and Heat Exchanger Mounting Bracket

The generator control panel and heat exchanger mounting bracket also utilize the 3043642 Spring Washer to secure their respective components. This ensures that these critical systems remain stable and operational, contributing to the overall reliability of the engine.

Starting Motor and Prelub Air Starter LB

Finally, in the starting motor and prelub air starter LB, the 3043642 Spring Washer is used to secure these components in place. This ensures that the starting process is smooth and reliable, reducing the risk of starting failures and enhancing the engine’s overall performance.

Conclusion

The Cummins 3043642 Spring Washer is a vital component in the maintenance and operation of commercial trucks. Its role in maintaining bolt tension and preventing loosening ensures the reliability and safety of the vehicle. With its high-strength material, precise design, and compatibility with various bolt sizes, this spring washer offers durability and efficiency in truck operations. Proper installation and regular maintenance are key to maximizing its benefits and ensuring long-term performance.