3904836
Weld Flange
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$109.95 $130.84

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 Weld Flange 3904836, manufactured by Cummins, is a component designed for use in commercial trucks. Cummins, a well-established name in the commercial truck industry, produces a range of parts that contribute to the efficiency and reliability of truck operations. This part facilitates the connection of various components, ensuring the smooth operation of the vehicle.

Basic Concepts of Weld Flanges

A weld flange is a type of fitting used to connect pipes, valves, and other equipment in a piping system. Its primary functions include providing a means for joining sections of pipe and allowing for easy disassembly and maintenance. Weld flanges operate by being welded to the end of a pipe, creating a flat surface that can be bolted to another flange. The general design of a weld flange includes a raised face or a flat face, with bolt holes arranged in a circle to secure the connection 1.

Purpose of Weld Flange 3904836

This Cummins part is specifically designed to play a role in the connection of components within a truck’s system. It integrates with other parts to ensure a secure and leak-proof connection, contributing to the overall functionality and efficiency of the vehicle. This flange is engineered to withstand the pressures and temperatures encountered in truck applications, ensuring reliable performance.

Key Features

The Weld Flange 3904836 is constructed from high-quality materials, ensuring durability and resistance to corrosion. Its design specifications include precise dimensions and tolerances to ensure a proper fit and seal. Unique attributes of this flange may include enhanced gasket seating surfaces and reinforced bolting patterns, which contribute to its performance and longevity.

Benefits

Using the Weld Flange 3904836 in truck applications offers several advantages. These include improved reliability due to its robust construction, ease of installation thanks to its design, and enhanced performance as a result of its precise engineering. The flange’s ability to provide a secure connection contributes to the overall efficiency of the truck’s system.

Installation Process

Proper installation of the Weld Flange 3904836 involves several steps. It begins with preparing the pipe end for welding, ensuring it is clean and free of debris. The flange is then welded to the pipe, followed by the application of a gasket to the mating surface. The two flanges are bolted together, with torque specifications followed to ensure a secure connection. Best practices include verifying the alignment of the flanges and the integrity of the weld before finalizing the installation 2.

Maintenance and Troubleshooting

Regular maintenance of the Weld Flange 3904836 includes inspecting the flange and gasket for signs of wear or damage. Common issues may include leaks, which can often be addressed by replacing the gasket or tightening the bolts. Tips for prolonging the lifespan of the flange include keeping the connection clean and free of debris, and periodically checking the torque on the bolts to ensure they remain secure.

Safety Considerations

When working with the Weld Flange 3904836, it is important to observe safety guidelines and precautions. Potential hazards include exposure to high pressures and temperatures, as well as the risk of injury from sharp edges or flying debris during welding. Mitigating these hazards involves wearing appropriate personal protective equipment, ensuring the work area is well-ventilated, and following all safety procedures during installation and maintenance.

Cummins: A Brief Overview

Cummins is a renowned manufacturer in the commercial truck industry, known for its commitment to quality and innovation. With a history of producing reliable and efficient parts, Cummins has established a strong reputation among truck operators and maintenance professionals. The company’s product range includes a variety of components designed to enhance the performance and durability of commercial trucks.

Weld Flange Part 3904836 Compatibility with Cummins Engines

The Weld Flange part number 3904836, manufactured by Cummins, is designed to fit seamlessly with various Cummins engine models. This part is crucial for ensuring proper sealing and structural integrity in the engine’s exhaust system. Here is a detailed look at the compatibility of this part with specific Cummins engines:

4B3.9 Engine

The 4B3.9 engine is one of the models where the Weld Flange part 3904836 is utilized. This part is integral to the engine’s exhaust manifold, providing a secure connection between the manifold and the exhaust pipe. Its robust design ensures that it can withstand the high temperatures and pressures typical in engine operations.

B4.5 Engine

Similarly, the B4.5 engine also benefits from the use of the Weld Flange part 3904836. In this engine, the flange is used to connect the exhaust manifold to the exhaust pipe, ensuring a leak-proof seal. This is essential for maintaining the engine’s efficiency and performance.

Grouping of Engines

While the 4B3.9 and B4.5 engines are distinct models, they share a common requirement for the Weld Flange part 3904836. This part’s design allows it to be used across these engines, providing a standardized solution for exhaust manifold connections. The compatibility of this flange with both engines underscores its versatility and importance in Cummins’ engine lineup.

Role of Part 3904836 Weld Flange in Engine Systems

The part 3904836 weld flange is an essential component in ensuring the secure and efficient operation of engine systems. It is primarily utilized in the connection between various engine components, facilitating a robust and leak-free interface.

Connection to Exhaust Outlet

One of the primary applications of the weld flange is in the connection to the exhaust outlet. The weld flange provides a sturdy and reliable attachment point for the exhaust system, ensuring that the connection remains intact under the high temperatures and pressures generated during engine operation. This secure attachment is vital for maintaining the integrity of the exhaust system, preventing leaks that could lead to performance issues or safety hazards.

Integration with Other Components

Beyond the exhaust outlet, the weld flange plays a significant role in connecting other engine components. It is often used in the assembly of manifolds, where it ensures a tight seal between the manifold and the engine block. This connection is important for efficient airflow and combustion, directly impacting engine performance.

Additionally, the weld flange is employed in the attachment of various sensors and monitoring devices to the engine. These sensors require a stable and secure mounting point to accurately measure parameters such as temperature, pressure, and emissions. The weld flange provides this necessary stability, ensuring that the sensors function correctly and provide reliable data.

Conclusion

In summary, the Weld Flange 3904836 is a versatile and essential component in the operation of commercial trucks and Cummins engines. Its robust design, precise engineering, and compatibility with various engine models make it a critical part for ensuring the secure and efficient connection of engine components. Proper installation, maintenance, and adherence to safety guidelines are paramount to maximizing the performance and longevity of this part.


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

  2. Kluczyk, Barry. How to Rebuild Any Automotive Engine. CarTech, 2008.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
4.5 x 1.0 x 1.0 in
Weight
0.55 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.