Mr. Gasket Exhaust Gasket Square Port Copper Seal Model 7158MRG

Description

Product Overview

The Mr Gasket 7158MRG copper seal square port exhaust gasket is a precision‑engineered component designed to meet the demanding requirements of modern performance vehicles. Constructed from high‑grade plastic, the gasket offers a balance of flexibility and strength, allowing it to conform to the mating surfaces of the exhaust manifold while resisting deformation under extreme heat and pressure. Its square port design aligns perfectly with the exhaust outlet, ensuring an unobstructed flow of gases and minimizing back pressure. The copper‑infused seal adds an extra layer of protection against leaks, delivering a tight, long‑lasting connection that maintains optimal engine efficiency. With dimensions of 22.8 x 3.8 x 0.3 inches and a weight of just 0.3 pounds, the gasket is lightweight yet robust, making it an ideal replacement for OEM parts.

Usage

This gasket is suited for a wide range of automotive applications, from daily commuters to high‑performance street racers. It is particularly effective in vehicles that experience frequent high‑rpm operation, such as sports cars, trucks, and off‑road machines. Installation is straightforward: the gasket slides into the exhaust manifold’s square port, and the copper seal creates an immediate airtight barrier. Because the material is resistant to oil, coolant, and combustion by‑products, it remains reliable even in harsh environments. Whether you are a professional mechanic performing a routine replacement or an enthusiast tackling a DIY upgrade, the 7158MRG gasket provides confidence that the exhaust system will operate without leaks, reducing the risk of engine damage and improving overall performance.

Why Choose Us

Choosing the Mr Gasket 7158MRG means selecting a product backed by decades of engineering expertise and a reputation for quality. Each gasket undergoes rigorous testing to verify its dimensional accuracy, material integrity, and sealing performance. The copper seal technology is proprietary, delivering superior leak resistance compared to standard rubber or silicone alternatives. Our manufacturing process adheres to strict quality control standards, ensuring that every unit meets the exact specifications required for a perfect fit. In addition, the product carries a warranty that reflects our confidence in its durability, and our customer support team is ready to assist with any installation questions or after‑sales concerns. By investing in this gasket, you benefit from a component that not only matches OEM standards but often exceeds them, providing long‑term reliability and peace of mind.

Key Features

• Durable plastic construction that resists heat, chemicals, and vibration for lasting performance.
• Copper‑infused seal creates an airtight connection, preventing exhaust leaks and back pressure.
• Square port design ensures optimal exhaust flow and easy alignment during installation.
• Lightweight yet robust, reducing overall vehicle weight while maintaining structural integrity.
• Comes with dedicated customer support and warranty coverage for added confidence.

FAQ

What vehicles are compatible with the 7158MRG gasket?

The 7158MRG is a vehicle‑specific part designed for a range of makes and models that use a square‑port exhaust manifold. Compatibility information can be found in the product’s fit guide or by consulting the vehicle’s service manual.

Can I install the gasket myself?

Yes. The gasket is designed for straightforward installation. Remove the old gasket, clean the mating surfaces, position the new gasket, and reassemble the exhaust components. Detailed installation steps are included in the packaging.

How does the copper seal improve performance?

The copper seal provides a superior barrier against gas leakage compared to traditional rubber seals. Its conductive properties also help dissipate heat more evenly, reducing the chance of warping and maintaining a consistent seal under high‑temperature conditions.

What warranty does Mr Gasket offer?

Mr Gasket offers a limited warranty that covers defects in material and workmanship for a specified period after purchase. For full details, refer to the warranty card included with the product or contact our support team.

Is this gasket suitable for high‑performance racing applications?

Absolutely. The combination of durable plastic, copper sealing, and precise engineering makes the 7158MRG an excellent choice for performance‑oriented builds where reliability and exhaust efficiency are critical.