3974134
Flange
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$66.95 $79.67

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 3974134 Flange is a component designed for use in commercial truck operations. It serves a specific function within the truck’s system, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and significance is key to appreciating its role in maintaining the operational integrity of commercial trucks.

Basic Concepts of Flanges

A flange is a type of fitting used to connect sections of pipes or equipment. It consists of a flat, circular plate with a hole in the center, which is attached to the end of a pipe. Flanges are equipped with bolt holes around the perimeter, allowing them to be bolted together to form a secure connection. This design facilitates easy disassembly and maintenance, making flanges a common choice in various mechanical systems 1.

Purpose of the 3974134 Flange in Truck Operations

The 3974134 Flange is utilized in commercial trucks to connect different sections of the exhaust system. It plays a role in ensuring a secure and leak-free connection between the exhaust manifold and the exhaust pipe. This connection is vital for the efficient operation of the truck’s engine, as it helps maintain the integrity of the exhaust flow and reduces the risk of leaks that could affect engine performance 2.

Key Features of the 3974134 Flange

The 3974134 Flange is constructed from durable materials, typically cast iron or steel, to withstand the high temperatures and pressures of the exhaust system. Its design includes precise bolt hole alignment and a gasket seating surface to ensure a tight seal. The flange’s size is tailored to fit specific exhaust system configurations, and it may feature additional attributes such as reinforced edges to enhance durability and resistance to wear.

Benefits of Using the 3974134 Flange

The use of the 3974134 Flange offers several advantages. It provides an improved seal between connected components, reducing the likelihood of exhaust leaks. The flange’s design allows for ease of installation, facilitating quick and efficient assembly. Its durable construction ensures long-term performance under demanding conditions, and its resistance to high temperatures and pressures contributes to the overall reliability of the truck’s exhaust system.

Installation and Usage Guidelines

Proper installation of the 3974134 Flange involves several steps. First, ensure the mating surfaces are clean and free of debris. Apply a suitable gasket to the flange’s seating surface to create a seal. Align the flange with the corresponding component and use bolts to secure it in place. Tighten the bolts in a crisscross pattern to ensure even pressure distribution and a secure connection. Tools required may include a torque wrench to achieve the correct tightening specification.

Maintenance and Troubleshooting

To maintain the 3974134 Flange and ensure its longevity, regular inspections are recommended. Check for signs of wear, corrosion, or damage to the flange and gasket. If any issues are detected, such as leaks or loose connections, address them promptly to prevent further damage. Troubleshooting may involve tightening loose bolts, replacing worn gaskets, or, in severe cases, replacing the flange itself.

Safety Considerations

When installing, maintaining, or troubleshooting the 3974134 Flange, it is important to observe safety guidelines. Ensure the engine is cool before beginning any work to avoid burns from hot components. Use appropriate personal protective equipment, such as gloves and safety glasses, to protect against injuries. Follow all manufacturer recommendations for torque specifications and maintenance procedures to ensure safe and effective operation.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a history spanning over a century, Cummins has established a reputation for quality, reliability, and innovation in the commercial truck industry. The company’s extensive product range and commitment to customer satisfaction have made it a preferred choice for commercial vehicle operators worldwide.

Cummins Part 3974134 Flange Compatibility

The Cummins part 3974134 Flange is designed to be a critical component in the engine systems of several models. This flange is engineered to ensure a secure and leak-proof connection between various parts of the engine, facilitating the smooth operation of the machinery.

QSC8.3 CM850 (CM2850) Engines

The flange is compatible with the QSC8.3 CM850 (CM2850) engines, where it plays a vital role in maintaining the integrity of the engine’s fluid systems. It is essential for connecting different sections of the engine, ensuring that fluids and gases are properly channeled without any leakage. This compatibility is crucial for maintaining the performance and longevity of the engine.

Engine Grouping

The flange is also designed to fit seamlessly within the broader family of Cummins engines, ensuring that it can be used across multiple models with similar design specifications. This versatility makes it a valuable component for technicians and engineers who work with a range of Cummins engines, providing a standardized solution for critical connections.

By ensuring a precise fit and reliable performance, the Cummins part 3974134 Flange is an indispensable part of the engine assembly, contributing to the overall efficiency and reliability of the machinery.

Role of Part 3974134 Flange in Engine Systems

Part 3974134 Flange is an essential component in the integration and operation of various engine systems, particularly those involving fluid dynamics and heat exchange. Its primary function is to facilitate secure and leak-proof connections between different parts of the system, ensuring efficient operation and longevity of the engine components.

Integration with Pumps

In systems utilizing pumps, the 3974134 Flange plays a significant role in connecting the pump to other components such as pipes, heat exchangers, and reservoirs. This connection is vital for maintaining the integrity of the fluid pathway, preventing leaks, and ensuring that the pump can operate under the required pressure conditions. The flange’s design allows for easy installation and removal, which is beneficial during maintenance or upgrades of the pump system.

Application in Raw Water Systems

For raw water systems, the 3974134 Flange is used to connect various sections of the piping that transport raw water from its source to the engine’s cooling system. This is particularly important in marine environments where raw water is used for cooling engine components. The flange ensures that the raw water can flow smoothly and under controlled pressure, which is essential for the efficient cooling of engine parts and preventing overheating.

Use in Sea Water Pump Systems

In sea water pump systems, the 3974134 Flange is instrumental in connecting the sea water pump to the engine’s cooling circuit. Sea water, being a highly corrosive medium, demands robust and reliable connections to prevent leakage and ensure the longevity of the system. The flange’s material and design are typically selected to withstand the corrosive nature of sea water, providing a durable connection that can endure the harsh marine environment.

Overall, the 3974134 Flange is a versatile component that enhances the functionality and reliability of engine systems by providing secure and efficient connections between various components. Its application across different systems underscores its importance in maintaining the operational integrity of complex engine setups.

Conclusion

The Cummins 3974134 Flange is a critical component in the operation and maintenance of commercial truck engines. Its design and construction ensure secure, leak-proof connections in various engine systems, contributing to the overall efficiency and reliability of the vehicle. Proper installation, maintenance, and adherence to safety guidelines are essential for maximizing the performance and longevity of this part.


  1. Martyr, A.J. Engine Testing: Theory and Practice: Third Edition. SAE International, 2007.

  2. Kershaw, John F. SAE International’s Dictionary for Automotive Engineers. SAE International, 2023.

SPECIFICATIONS

Package Dimensions
3.5 x 3.5 x 0.25 in
Weight
0.26 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.