Complete your Gen 3 HEMI exhaust or engine project with the OEM Mopar Left and Right Exhaust Manifold Gasket Set, featuring part numbers 5038098AA and 5038099AA. Instead of purchasing each bank separately, this package includes the right and left exhaust manifold gaskets needed to properly reseal both cylinder heads on compatible applications. Each gasket is a genuine Mopar component designed around the factory exhaust port arrangement and cylinder head sealing surfaces. Whether you’re replacing a leaking factory manifold or installing a new exhaust system, starting with fresh gaskets helps ensure the job is completed correctly.

Exhaust manifold gaskets operate in an extremely demanding environment. They must maintain a consistent seal while being exposed to high exhaust temperatures, repeated heat cycles, engine vibration, and constant expansion and contraction of surrounding components. When an exhaust gasket begins to fail, symptoms can include ticking noises, increased exhaust volume, escaping exhaust gases, and soot around the manifold or cylinder head mating surfaces.

This complete set is especially useful during long-tube header installations and other Gen 3 HEMI exhaust upgrades. Anytime the factory manifolds are removed, replacing the existing gaskets eliminates the uncertainty that comes with reusing previously compressed sealing components. For performance builds, maintaining a proper exhaust seal also helps ensure that exhaust gases are directed through the intended exhaust path rather than escaping at the cylinder head.

Genuine Mopar construction provides another important advantage. The 5038098AA right-side gasket and 5038099AA left-side gasket are application-specific components rather than universal exhaust gaskets. This provides the factory-style port alignment and fitment needed for compatible Gen 3 HEMI cylinder heads and exhaust manifolds.

These gaskets are also valuable during larger engine projects. Cylinder head removal, camshaft and lifter work, head gasket replacement, engine rebuilding, and cylinder head upgrades can all require the exhaust manifolds or headers to be disconnected. Having both fresh exhaust gaskets ready for reassembly helps prevent a small sealing component from delaying the project.

For everything from a stock exhaust manifold repair to a complete high-performance HEMI build, the OEM Mopar 5038098AA and 5038099AA Exhaust Manifold Gasket Set provides a simple way to service both cylinder banks at once. With genuine Mopar construction and a complete left-and-right configuration, this set belongs on the parts list whenever the exhaust system is separated from compatible Gen 3 HEMI cylinder heads.

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Specifications & Features

• Brand: Mopar
• Manufacturer: Mopar OEM
• Product Type: Exhaust Manifold Gasket Set
• Right-Side Part Number: 5038098AA
• Left-Side Part Number: 5038099AA
• Quantity: 2 gaskets, one left and one right
• Engine Compatibility: Select Gen 3 HEMI V8 applications
• Vehicle Compatibility: Select Chrysler, Dodge, Jeep, and Ram vehicles equipped with compatible Gen 3 HEMI engines
• Year Compatibility: Application dependent; verify exact fitment by vehicle and engine
• Position: Left and right cylinder banks
• Size: OEM application-specific dimensions
• Weight: Not specified by manufacturer
• Material: OEM high-temperature exhaust gasket construction
• Color: Metallic / factory finish, appearance may vary
• Condition: New
• Fitment Type: Direct OEM replacement
• Designed to seal the exhaust manifold to the cylinder head
• Includes both cylinder bank gaskets in one package
• Helps prevent exhaust leaks at the cylinder head
• Helps reduce exhaust ticking caused by gasket leakage
• Factory-style exhaust port alignment
• Designed for repeated high-temperature operation
• Ideal for factory exhaust manifold replacement
• Suitable for compatible aftermarket header installations
• Recommended when exhaust manifolds or headers are removed
• Suitable for cylinder head removal and installation
• Suitable for camshaft, lifter, and valvetrain projects requiring exhaust removal
• Suitable for stock and modified Gen 3 HEMI applications
• Intended Use: Exhaust manifold repair, header installation, cylinder head service, engine rebuilding, camshaft projects, exhaust upgrades, and performance engine builds
• Installation Difficulty: Moderate to Advanced
• Professional Installation: Recommended
• Installation Note: Clean and inspect the cylinder head and exhaust manifold or header mating surfaces before installation
• Fitment Note: Verify 5038098AA and 5038099AA compatibility with your exact year, model, engine, cylinder heads, and exhaust configuration before ordering