Exhaust manifold

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About Exhaust manifold

Exhaust Manifolds and Gaskets for Diesel Engines

Find replacement exhaust manifolds and exhaust manifold gaskets at FAB Heavy Parts. This collection includes individual manifolds, gasket sets, manifold assemblies supplied with gaskets, and selected muffler-related components for diesel engines used in construction equipment, excavators, loaders, tractors, and other machinery. Browse by engine model or part number to find components for your repair.

Exhaust Manifold Parts for Cummins, Caterpillar, Kubota, and More

Explore selected Cummins applications, including manifold listings for 8.3 and 8.9 engine families and QSB4.5, QSB5.9, and QSB6.7 engines. The collection also includes Caterpillar exhaust manifold gaskets for specified C7 applications, Isuzu gasket sets for 6HK1 and 6BD1 engines, and Kubota manifolds and gaskets for selected D-series and V-series engines.

Additional listings cover Deutz, Yanmar, Mitsubishi, Komatsu, and other applications. Product configurations vary: some listings are for a gasket set alone, while others include an exhaust manifold with one or more gaskets. Certain products are manifold sections or assemblies with muffler-related components, so review the product title and included parts carefully.

Choose the Correct Exhaust Manifold or Gasket

Exhaust manifolds route exhaust gases from the engine cylinders into the exhaust system. Manifold gaskets help seal the mating surfaces between connected components. A damaged manifold or failed gasket may contribute to exhaust leakage, unusual noise, or visible soot around a joint, but these symptoms can have other causes and should be assessed before replacing parts.

To identify the right replacement, compare the part number on your existing component with the product listing. Confirm the exact engine model and version, equipment application, and relevant serial or configuration details where available. Check the gasket’s intended position and whether the listing includes all the components needed for your repair. Do not assume that manifolds or gaskets are interchangeable across similar engine models.

Need Help Finding the Right Exhaust manifold?

Can't find the replacement part you need? Send FAB Heavy Parts your part number, engine model, or equipment details. Our team can help review your requirements and provide a quotation.

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Frequently Asked Questions

How do I find the right exhaust manifold for my engine?

Please start with your engine model and the part number on your existing manifold, if available. Then compare them with the application and replacement part number listed on the product page. If you're unsure, please send us your engine model, existing part number, and equipment details so the correct application can be checked before you order.

Does an exhaust manifold replacement come with a gasket?

Not always. Some exhaust manifolds are for the exhaust manifold alone, while others specify a gasket set or a manifold-and-gasket assembly. Please check the product title, description, and included part numbers before ordering. If you're replacing both components, please confirm that the selected listing includes everything you need.

Can I use an exhaust manifold gasket from a similar engine model?

Please don't assume that a similar engine model uses the same gasket. Differences in the engine configuration, manifold design, or sealing layout can affect compatibility. We recommend matching the listed part number and exact engine application before purchase.

Are the exhaust manifolds and gaskets genuine OEM parts?

Product condition and sourcing can vary by different exhaust manifolds. Some products are explicitly identified as aftermarket replacements, while others may have a different designation. Please review the individual product page for its stated condition and part details. We don't classify a part as genuine OEM unless that status is specifically confirmed.

What should I inspect if my replacement exhaust manifold still leaks?

Please stop and allow the engine to cool before inspecting the exhaust system. A leak may involve a damaged gasket, uneven or damaged mating surfaces, loose or incorrectly tightened fasteners, or another exhaust-system issue. Follow the engine manufacturer's service instructions for inspection and installation specifications. If the cause isn't clear, please have a qualified technician inspect the assembly before further operation.

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