Intake manifold gaskets today must seal and survive in much more demanding operating environments than in the past, including exposure to extended life anti-freeze, known as OAT (Organic Acid Technology) coolants.For over 10 years, Magnum's U.S.-based factory has been a leading supplier of advanced technology intake manifold gaskets for Original Equipment, OEM Service and the Automotive Aftermarket. For many applications, most of the molded intake manifold gaskets sold by leading aftermarket brands, were manufactured in Magnum facilities.


Magnum's Manifold Gaskets Sets cover more than 80% of category sales. We offer gaskets for the most popular vehicles in America, including models from 1957 through 2009 and up. Chevrolet, Buick, Ford, Chrysler, GMC, Toyota, Honda, Nissan, Mazda, Isuzu and more… we cover them all. Our product line includes Intake Manifold Gasket Sets, Exhaust Manifold Gasket Sets and Combination Intake & Exhaust Gasket Sets.
Like every Magnum Gasket Set, our manifold gaskets are packaged in a professional, industrial grade carton with comprehensive tri-lingual labeling that include set contents, summarized application information and an interchange with other gasket brands. Magnum Installation Guides, included in many sets, offer important job-specific specifications and helpful tips for easier and more confident engine assembly.

You'd better be ready to take the heat if you're going to seal an exhaust manifold, where temperatures can often exceed 1,000°F. You can count on Magnum to offer the best combination of steel layers and high-temp gasket materials to tackle the job in each application.

Some inline 4 and 6 cylinder engines are designed with intake and exhaust ports on the same side of the cylinder head. This makes it possible, in some instances, to offer a single manifold gasket that combines features of both intake and exhaust gaskets. Magnum covers the most popular applications, using materials that meet the same high standards applied to our separate intake and exhaust manifold gaskets.

"DO's & DON'Ts" of manifold GASKETS

Nowadays, it seems like you can't mention the words "intake manifold gaskets" without starting a debate on why so many gaskets have failed in recent years. One thing is for sure, some combination of engine designs, coolant formulations and neglected vehicle maintenance has created a torturous environment for some intake manifold gaskets. Magnum has addressed the issue, starting with their "OEM or better" philosophy. Beyond this, for the most severe applications, Magnum MaxDry STL gaskets offer the added assurance of a steel core and FKM synthetic rubber sealing beads.