3949562
Flange Gasket
Cummins®

The 3949562 Flange Gasket is a component manufactured by Cummins, designed for use in commercial trucks. This article provides an in-depth look at the function, features, and maintenance of this specific flange gasket.

Basic Concepts of Flange Gaskets

Flange gaskets are sealing devices placed between two surfaces, typically in a piping system or engine component, to prevent leakage of fluids or gases. They play a role in maintaining the integrity of the system by ensuring a tight seal. Flange gaskets come in various materials and designs to suit different applications and pressure requirements ¹.

Purpose of Flange Gasket 3949562

The 3949562 is utilized in the engine systems of commercial trucks. It plays a role in sealing connections between flanges, which are often found in exhaust systems, coolant passages, and other areas where fluid or gas transfer occurs. The gasket ensures that these connections remain leak-free, contributing to the efficient operation of the truck’s engine.

Key Features

• Material: The gasket is typically made from durable materials such as graphite, rubber, or metal, depending on the specific application requirements.
• Design: It features a precise fit to match the flange surfaces it seals, ensuring optimal performance.
• Compatibility: Designed to be compatible with Cummins engines and other specified commercial truck models.

Benefits

• Enhanced Sealing: Provides a reliable seal that prevents leaks, which can lead to system inefficiencies or failures ².
• Durability: Constructed from high-quality materials to withstand high temperatures, pressures, and corrosive environments commonly found in truck engines.
• Ease of Installation: Designed for straightforward replacement, minimizing downtime during maintenance procedures.

Troubleshooting and Maintenance

Regular inspection of the 3949562 is recommended to identify any signs of wear or damage. Common issues include hardening, cracking, or deformation, which can compromise the seal. If any defects are noticed, the gasket should be replaced promptly to maintain system integrity. Additionally, ensuring proper torque when installing flanges can help prolong the life of the gasket ³.

Compatibility with Cummins Engines

The 3949562 is designed to fit a variety of Cummins engines, ensuring a secure seal between the flange and the mating surface. This gasket is essential for preventing leaks and maintaining the integrity of the engine’s sealing system. Below is a detailed breakdown of the engines that this flange gasket is compatible with:

B5.6 and B6.7 Series Engines

• B5.6 CM2670 B152B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C

ISB Series Engines

• ISB (Chrysler)
• ISB CM2150
• ISB CM850
• ISB/ISD6.7 CM2150 SN
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118
• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

QSB Series Engines

• QSB4.5 CM2250 EC
• QSB4.5 CM850(CM2850)
• QSB5.9 CM850
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850(CM2850)
• QSB6.7 M CM2250
• QSB7 CM2880 B117

Role of 3949562 Flange Gasket in Engine Systems

The 3949562 is an essential component in ensuring the integrity and efficiency of various engine systems. Its primary function is to create a reliable seal between mating surfaces, preventing leaks and ensuring optimal performance.

Integration with Long Block and Long Block Kit

The Flange Gasket is instrumental in sealing the connection points between the engine block and other components such as the oil pan. This seal is vital for maintaining the engine’s lubrication system, ensuring that oil does not escape and contaminate other parts.

Role in Lower Engine Gasket Kit

In a lower engine gasket kit, the Flange Gasket complements other gaskets to provide a comprehensive sealing solution. It specifically targets the flange areas, which are prone to leaks due to their design and the pressures they endure.

Application in Oil Pan and Oil Pan Kit

For the oil pan and oil pan kit, the Flange Gasket is used to seal the junction between the oil pan and the engine block. This is a high-stress area where oil pressure and engine vibrations can cause seals to fail.

Use in Overhaul Kit

In an overhaul kit, the Flange Gasket is a key component that aids in the restoration and sealing of the engine’s lower end. It works in conjunction with other gaskets and seals to ensure that the engine is reassembled with precision.

Function in Pan, Oil, and Service Kit

The Flange Gasket also plays a significant role in pan, oil, and service kits. In these applications, it ensures that the oil pan remains sealed, preventing oil loss and contamination.

Conclusion

Understanding the specific roles and applications of the 3949562 in these various engine systems allows engineers and mechanics to ensure that their engine assemblies are both efficient and reliable.