4987670
Wiring Harness
Cummins®

Introduction

The 4987670 O-Ring Seal is a component designed for use in heavy-duty truck maintenance and operation. Its purpose is to ensure the integrity of seals within various systems of the truck, contributing to the overall efficiency and reliability of the vehicle. Understanding the role and significance of this Cummins part is important for maintaining the performance and longevity of heavy-duty trucks.

Basic Concepts of O-Ring Seals

An O-Ring Seal is a type of gasket that forms a seal by being squeezed into a groove. It operates on the principle of compression, where the deformation of the O-Ring creates a barrier that prevents the leakage of fluids or gases. O-Ring Seals are widely used in mechanical systems due to their simplicity, effectiveness, and versatility in various applications ¹.

Purpose of the 4987670 O-Ring Seal in Truck Operation

This part plays a specific role in the operation of a truck by ensuring the sealing of various systems or components. It is commonly associated with fluid systems, such as hydraulic and fuel systems, where it helps maintain pressure and prevent leaks. The effectiveness of the O-Ring Seal in these applications is vital for the proper functioning of the truck ².

Key Features of the 4987670 O-Ring Seal

The 4987670 is characterized by its design and material properties that enhance its effectiveness and durability. It is typically made from materials that offer resistance to a range of environmental factors, including temperature variations, chemical exposure, and mechanical stress. These features contribute to the seal’s ability to maintain performance over time ³.

Benefits of Using the 4987670 O-Ring Seal

The use of this Cummins part provides several advantages. It offers improved sealing performance, which is crucial for maintaining system integrity and efficiency. Additionally, its durability ensures longevity, reducing the need for frequent replacements. The seal’s resistance to various environmental factors further enhances its reliability in demanding conditions.

Installation and Maintenance Guidelines

Proper installation of the 4987670 involves ensuring it is correctly seated in its groove without damage. Best practices include cleaning the groove and the O-Ring before installation to prevent contamination. Regular maintenance checks are recommended to ensure the seal remains in good condition, addressing any signs of wear or damage promptly.

Troubleshooting Common Issues

Common issues with O-Ring Seals, such as leaks or failures, can often be traced back to installation errors or environmental factors. Troubleshooting may involve inspecting the seal for signs of wear, checking the groove for proper seating, and assessing the system for any external factors that may affect the seal’s performance. Addressing these issues promptly can help maintain the seal’s effectiveness.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and quality, Cummins serves a wide range of industries, including automotive and heavy-duty trucking. The company is known for its commitment to reliability, performance, and sustainability in its product offerings.

O-Ring Seal Part 4987670 in Cummins Engines

The O-Ring Seal part 4987670, manufactured by Cummins, is a critical component in ensuring the integrity of various engine systems. This seal is designed to fit seamlessly within the G855 and G855 CM558 engines, providing a reliable barrier against fluid leaks and maintaining system pressure.

In the G855 engine, the O-Ring Seal part 4987670 is typically used in areas where a high level of sealing is required, such as in the fuel injection system, hydraulic circuits, or other fluid pathways. Its precision fit ensures that the engine operates efficiently and safely, minimizing the risk of contamination and system failure.

Similarly, in the G855 CM558 engine, this O-Ring Seal plays a vital role in maintaining the engine’s performance. It is often found in critical junctures where different components interface, such as in the turbocharger system, coolant passages, or other high-pressure areas. The seal’s design allows it to withstand the rigors of engine operation, providing a durable and long-lasting solution to sealing challenges.

The use of part 4987670 in these engines underscores Cummins’ commitment to quality and reliability. By integrating this O-Ring Seal into their engine designs, Cummins ensures that the G855 and G855 CM558 engines can perform optimally under a variety of conditions, enhancing the overall reliability and longevity of the engine.

Role of Part 4987670 O-Ring Seal in Engine Systems

The part 4987670 O-Ring Seal is instrumental in maintaining the integrity and efficiency of various engine systems. In the system components, this O-Ring Seal ensures that fluids and gases are contained within their designated pathways, preventing leaks that could lead to performance issues or damage. It is particularly important in fuel systems, where it seals connections between fuel lines and injectors, ensuring a consistent fuel delivery without leaks.

In the ignition system, the O-Ring Seal plays a significant role in sealing the connections between ignition components such as coils, spark plug boots, and fuel injectors. This seal is vital for maintaining the integrity of the electrical connections and preventing any moisture or debris from interfering with the ignition process. By ensuring a tight seal, the O-Ring contributes to reliable spark delivery, which is essential for consistent engine performance and efficient combustion.

Conclusion

The 4987670 O-Ring Seal by Cummins is a vital component in the maintenance and operation of heavy-duty trucks and engines. Its role in ensuring the integrity of seals within various systems contributes significantly to the overall efficiency, reliability, and longevity of the vehicle. Proper installation, maintenance, and understanding of this part are crucial for optimal engine performance and system integrity.