4100845
O-Ring Plug
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$359.95 $428.34

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Cummins 4100845 O-Ring Plug is a component designed for use in commercial trucks. It serves a specific function within the truck’s systems, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and role is fundamental for maintaining and optimizing truck performance.

Basic Concepts of O-Ring Plugs

An O-Ring Plug is a type of seal that uses a circular rubber ring to create a barrier against fluid or gas leakage. It functions by fitting snugly into a groove, providing a seal that prevents the escape of substances. O-Ring Plugs are commonly used in various mechanical systems to ensure that fluids and gases remain contained within their designated pathways 1.

Purpose of the 4100845 O-Ring Plug

The 4100845 O-Ring Plug plays a role in the operation of a truck by sealing specific points within the engine or other systems. Its function is to prevent leaks of fluids or gases, which could otherwise lead to inefficiencies or damage. By maintaining a secure seal, it contributes to the smooth operation of the truck’s systems.

Key Features

This Cummins part is characterized by its material composition, typically made from durable elastomers that can withstand high temperatures and pressures. Its design specifications include a precise diameter and cross-section to ensure a tight fit within the designated groove. Unique attributes may include resistance to specific chemicals or enhanced durability under extreme conditions.

Benefits

Using the 4100845 O-Ring Plug provides several benefits. It offers improved sealing capabilities, which help in maintaining the integrity of the truck’s systems. Its durability ensures long-term performance, reducing the need for frequent replacements. Additionally, by preventing leaks, it contributes to the overall efficiency of truck operations 2.

Installation Process

Proper installation of the 4100845 O-Ring Plug involves several steps. First, the area where the plug will be installed should be cleaned to remove any debris. The O-Ring should then be lubricated to facilitate easy insertion into the groove. Using the appropriate tools, the plug is carefully placed into position, ensuring it sits flush with the surrounding surface.

Common Issues and Troubleshooting

Common issues with the 4100845 O-Ring Plug may include leaks due to wear or improper installation. Troubleshooting methods involve inspecting the O-Ring for signs of damage or deformation. If issues are detected, the O-Ring may need to be replaced. Ensuring correct installation procedures are followed can prevent many common problems.

Maintenance Tips

To ensure the longevity and effectiveness of the 4100845 O-Ring Plug, regular maintenance practices are recommended. This includes periodic inspection for signs of wear or damage. Cleaning the area around the plug can prevent debris from affecting its performance. Additionally, following manufacturer guidelines for replacement intervals can help maintain optimal sealing.

Compatibility and Applications

The 4100845 O-Ring Plug is designed for use within Cummins engines, where it plays a role in sealing various components. Its applications extend to other areas of truck maintenance where secure sealing is required. Understanding its compatibility with specific engine models and systems is important for effective use.

About Cummins

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 has established a strong reputation in the commercial truck industry. Its product range includes a variety of components designed to enhance the performance and reliability of commercial vehicles.

Cummins Engine Part 4100845: O-Ring Plug

The O-Ring Plug, identified by the part number 4100845, is a critical component in the maintenance and operation of several Cummins engines. This part is integral to ensuring the integrity and efficiency of the engine systems it is used in.

Application in Cummins Engines

The O-Ring Plug is designed to fit seamlessly into the QSK60 series engines, specifically the QSK60 CM500 and QSK60 CM850 MCRS models. These engines are known for their robust performance and reliability, making them suitable for a variety of demanding applications.

  • QSK60 CM500: This engine model benefits from the O-Ring Plug in its sealing mechanisms, ensuring that there are no leaks or inefficiencies in the system. The plug’s design allows for easy installation and removal, facilitating routine maintenance and repairs.

  • QSK60 CM850 MCRS: In the QSK60 CM850 MCRS, the O-Ring Plug plays a crucial role in maintaining the engine’s operational integrity. Its precision fit and durable construction ensure that it can withstand the high pressures and temperatures typical of this engine’s operation.

The O-Ring Plug’s compatibility with these engines underscores its importance in the overall maintenance and performance of the QSK60 series. Its design and material ensure that it can effectively seal various components, contributing to the engine’s longevity and efficiency.

Role of Part 4100845 O-Ring Plug in Engine Systems

The 4100845 O-Ring Plug is an essential component in various engine systems, ensuring the integrity and efficiency of several key components.

In the lever and rocker mechanisms, the O-Ring Plug is utilized to create a seal that prevents fluid leakage. This is particularly important in systems where precise movement and lubrication are required to maintain operational efficiency.

Within the manifold system, the O-Ring Plug plays a significant role in sealing connections between different sections of the manifold. This ensures that the airflow remains consistent and uncontaminated, which is vital for optimal engine performance.

In water systems, such as cooling circuits, the O-Ring Plug is employed to seal connections and prevent coolant leaks. This helps maintain the correct temperature within the engine, ensuring that components do not overheat and sustain damage.

For plumbing applications within the engine, the O-Ring Plug is used to seal joints and fittings. This is essential for maintaining the integrity of fluid pathways, whether for fuel, oil, or other liquids, ensuring that the engine operates smoothly without interruptions.

In the cabin heater system, the O-Ring Plug is crucial for sealing connections in the heater core and associated pipes. This ensures that hot coolant flows efficiently through the system without leakage, providing consistent and reliable heating for the vehicle’s interior.

Overall, the 4100845 O-Ring Plug is a versatile component that enhances the reliability and performance of various engine systems by providing essential seals and preventing fluid leaks.

Conclusion

The Cummins 4100845 O-Ring Plug is a vital component in the maintenance and operation of commercial trucks, particularly within Cummins engines. Its role in sealing various components ensures the integrity and efficiency of engine systems, contributing to the overall performance and reliability of the vehicle. Regular maintenance and proper installation are key to maximizing the benefits of this part.


  1. R. Matthew Brach, SAE International’s Dictionary of Vehicle Accident Reconstruction and Automotive Safety, SAE International, 2023.

  2. Michael Hilgers, Fuel Consumption and Consumption Optimization, Second Edition, Springer Nature, 2023.

SPECIFICATIONS

Package Dimensions
8.3 x 8.3 x 6.0 in
Weight
1.03 lb
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.