4353887
Threaded Plug
Cummins®

Introduction

The Cummins Threaded Plug 4353887 is a component designed for use in commercial truck operations. Its primary role is to provide a secure seal in various applications within the truck’s systems. This plug is integral to maintaining the integrity of fluid systems, ensuring that liquids and gases remain contained within their designated pathways.

Purpose and Function

The Cummins Threaded Plug 4353887 serves multiple functions within a truck’s operational systems. It is commonly used to seal openings in engine blocks, transmission cases, and other fluid-carrying components. By creating a tight seal, it helps prevent leaks, which can lead to system failures or inefficiencies. Its application is vital in maintaining the pressure and volume of fluids within the system, contributing to the overall performance and reliability of the truck ¹.

Key Features

The Cummins Threaded Plug 4353887 is constructed with high-quality materials to ensure durability and performance. It features a robust thread design that allows for a secure fit within the designated port. The material composition typically includes metals that offer resistance to corrosion and wear, enhancing the plug’s longevity. The design specifications are tailored to meet the demanding conditions of commercial truck environments, ensuring consistent performance over time.

Benefits

The use of the Cummins Threaded Plug 4353887 offers several advantages. Its design contributes to improved sealing, which is crucial for maintaining system integrity. The material properties provide resistance to corrosion, extending the component’s service life. Additionally, the plug is designed for ease of installation, allowing for quick and efficient replacement when necessary.

Installation Process

Installing the Cummins Threaded Plug 4353887 requires attention to detail to ensure a proper seal. The process involves cleaning the port to remove any debris, applying a compatible sealant if necessary, and threading the plug into place. It is important to use the correct tools to avoid cross-threading and to ensure the plug is tightened to the manufacturer’s specified torque. Precautions should be taken to avoid over-tightening, which can damage the threads or the plug itself.

Common Applications

The Cummins Threaded Plug 4353887 is utilized in various applications across different truck systems. It is commonly found in engine blocks to seal oil passages, in transmission cases to prevent fluid leaks, and in other fluid systems where a secure seal is required. Its versatility makes it a standard component in many commercial truck maintenance and repair procedures.

Troubleshooting and Maintenance

When troubleshooting issues related to the Cummins Threaded Plug 4353887, it is important to inspect for signs of wear or leakage. Regular maintenance checks can help identify potential problems before they lead to system failures. If a plug shows signs of damage or if a leak is detected, it should be replaced promptly to maintain system integrity. Proper maintenance practices, including regular inspections and timely replacements, can extend the life of the plug and the systems it serves.

Safety Considerations

When handling and installing the Cummins Threaded Plug 4353887, it is important to observe safety protocols. Personal protective equipment, such as gloves and safety glasses, should be worn to protect against injury. Environmental precautions should also be taken to prevent contamination of the work area and to dispose of any waste materials properly. Following these safety considerations ensures a safe working environment and protects the quality of the installation.

Cummins 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 a commitment to quality, Cummins has established a strong reputation in the commercial truck industry. The company’s products are known for their reliability and performance, contributing to the efficiency and durability of commercial vehicles ².

Compatibility with Cummins Engines

The Threaded Plug part number 4353887 is designed to fit seamlessly with several Cummins engine models. This part is engineered to ensure optimal performance and reliability across a range of engine configurations.

F3.8 CM2350 Engines

• F3.8 CM2350 F128C
• QSF3.8 CM2350 F107

The Threaded Plug 4353887 is specifically designed to fit the F3.8 CM2350 engines, including the F128C and F107 variants. This part is crucial for maintaining the integrity of the engine’s fuel and lubrication systems, ensuring that the engine operates smoothly and efficiently.

QSB6.7 CM2350 Engines

• QSB6.7 CM2350 B105

For the QSB6.7 CM2350 B105 engine, the Threaded Plug 4353887 is an essential component. Its precise fit ensures that the engine’s internal systems remain sealed and protected, contributing to the overall durability and performance of the engine.

QSG12/X12 CM2350 Engines

• QSG12/X12 CM2350 G110

The Threaded Plug 4353887 is also compatible with the QSG12/X12 CM2350 G110 engine. This part plays a vital role in the engine’s maintenance by providing a secure seal, which is essential for the proper functioning of the engine’s components.

QSL9 CM2350 Engines

• QSL9 CM2350 L102

In the QSL9 CM2350 L102 engine, the Threaded Plug 4353887 is a key component that ensures the engine’s systems are properly sealed. Its design allows for easy installation and removal, facilitating routine maintenance and repairs.

QSX15 CM2350 Engines

• QSX15 CM2350 X105

Lastly, the Threaded Plug 4353887 is compatible with the QSX15 CM2350 X105 engine. This part is engineered to fit precisely, ensuring that the engine’s systems remain sealed and protected, contributing to the engine’s longevity and performance.

Role in Diesel Exhaust Fluid Systems

In diesel exhaust fluid (DEF) systems, the 4353887 Threaded Plug serves a significant function in maintaining the integrity and efficiency of the system. This component is strategically placed within the DEF tank to seal openings that are not in use, thereby preventing any potential leaks or contamination of the DEF.

The DEF tank is a vital component in modern diesel engines, designed to store the fluid used in the Selective Catalytic Reduction (SCR) system. The SCR system relies on DEF to reduce harmful nitrogen oxides (NOx) emissions, converting them into harmless nitrogen and water vapor. Ensuring the DEF tank remains sealed and uncontaminated is essential for the SCR system to function effectively.

The 4353887 Threaded Plug is often used to seal ports within the DEF tank that may be reserved for future use or additional components. By securely closing these ports, the plug helps maintain the purity of the DEF, preventing any external contaminants from entering the tank. This is particularly important given the sensitive nature of DEF, which can be easily degraded by impurities.

Additionally, the plug plays a role in pressure management within the DEF system. By sealing off unnecessary openings, it helps maintain consistent pressure levels, which is crucial for the proper delivery of DEF to the SCR system. This ensures that the DEF is evenly distributed and effectively utilized during the emission reduction process.

Conclusion

The Cummins Threaded Plug 4353887 is a critical component in maintaining the integrity and efficiency of commercial truck systems. Its role in sealing various fluid systems, compatibility with multiple Cummins engine models, and function within DEF systems highlight its importance in ensuring the reliability and performance of diesel engines. Proper installation, maintenance, and adherence to safety protocols are essential for maximizing the benefits of this Cummins part.