JEGS 31806 Gm Header Flange 889944042228

( Brand: Jegs ), ( Part Type: Header Flange ), ( Manufacturer Part Number: 31806 ), ( Country Of Origin: Usa ), ( UPC: 889944042228 )

Review JEGS Gm Header Flange

The 31806 GM Header Flange is a critical component in the cooling system of various GM vehicles. This flange is designed to connect the engine's cylinder head to the manifold or the heat exchanger, facilitating the smooth flow of coolant between these essential parts.

Measuring approximately 5.5 inches in diameter and 0.6 inches thick, this header flange is engineered to provide a secure and reliable connection between the engine components. Its robust design ensures that it can withstand the high-pressure coolant system and the extreme temperatures it encounters during vehicle operation.

Made from ductile cast iron, this header flange boasts impressive strength and durability. The material's ability to resist thermal shock and fatigue makes it an ideal choice for automotive applications. The casting process gives this header flange a smooth, even finish and ensures that all vital engine coolant passages are accurately machined for optimal performance.

The 31806 GM Header Flange comes with a gasket surface that is precision-machined to ensure a perfect seal with the corresponding gasket. The gasket surface is also designed to allow for easy gasket installation and removal, simplifying maintenance procedures.

Additionally, this header flange features threaded holes for attaching the necessary mounting hardware. These threads are accurately tapped and meet the required GM specifications. The sturdy design of these threads ensures that the header flange remains securely fastened to the engine components, even under the most demanding driving conditions.

In conclusion, the 31806 GM Header Flange is a high-quality, robust component that plays a vital role in the cooling system of various GM vehicles. Its durable cast iron construction, precision machining, and accurate threading make it an essential upgrade for any engine rebuild or performance enhancement project.

1. Enhanced Performance: A new header flange can improve engine performance by ensuring a proper seal between the exhaust manifold and the header collector. This results in better gas flow and improved combustion efficiency.

2. Durability: A high-quality header flange is built to last. It can resist corrosion and withstand the harsh conditions of an internal combustion engine.

3. Reduced Emissions: A well-sealed header flange can help reduce exhaust gas leaks, leading to a decrease in harmful emissions.

4. Improved Fuel Economy: A properly functioning header flange can contribute to better fuel economy by improving engine efficiency.

1. Cost: A new header flange can be expensive, especially for high-performance vehicles or those with aftermarket modifications.

2. Installation Complexity: Installing a new header flange can be a complex process, requiring specialized tools and knowledge. The process involves removing the old flange, preparing the surfaces for welding or gaskets, and then installing the new flange.

3. Time Consuming: Installing a new header flange is a time-consuming process. It may take several hours, depending on the vehicle and the skill level of the installer.

A new 31806 GM header flange can offer significant performance benefits, durability, reduced emissions, and improved fuel economy. However, its high cost, installation complexity, and time-consuming nature are drawbacks that must be considered.

If you're experiencing issues with your header flange, such as leaks or poor performance, then replacing it could be a worthwhile investment. Consider the cost, time, and complexity of the installation process, and weigh the benefits against the drawbacks. If you have the necessary skills and resources, or if you're planning to sell your vehicle soon, then replacing the header flange could be a good choice. Otherwise, it may be more cost-effective to consider alternative solutions, such as using a high-quality gasket or sealant.

part # 31806 price

• $33.26

specifications maniheader:

• brand: Jegs
• part type: Header Flange
• manufacturer part number: 31806
• country of origin: Usa
• upc: 889944042228

seller maniheader:

• rating: 99.5%
• # reviews: 629553

returns maniheader:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

general maniheader:

• Car Truck Parts Accessories > Exhaust Emission Systems > Manifolds Headers
• condition: New

payments maniheader:

• wallet: Paypal
• credit card: Diners-club
• other

shipping maniheader:

• class: Standard
• transit: 34-51 Days
• type: Fixed
• cost: $15.99
• service: Standard

offer maniheader:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 3
• started: May 12, 2026

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