Int Manifold Gasket Set 09-21 Hemi 5.7L

The Intake Manifold Gasket Set 09-21 Hemi 5.7L is a critical engine seal designed for Mopar Gen III Hemi-powered vehicles, particularly the 5.7L displacement variants found in Dodge, Jeep, and Chrysler applications from 2009 through 2021. As an engine builder or serious DIY mechanic, you know that intake manifold gaskets prevent coolant and combustion leakage between the manifold and cylinder head—failure here leads to overheating, rough idle, and potential water intrusion into the oil. This MAHLE ORIGINAL/CLEVITE set addresses the square-port design specific to third-generation Hemis, ensuring OEM-level fitment and durability without compromise.

This set includes eight individual gaskets—one per cylinder—manufactured from premium rubber compound engineered to withstand sustained heat cycling, fuel vapors, and coolant exposure. MAHLE ORIGINAL's reputation in OEM supply means these gaskets meet or exceed Mopar specifications for material composition, thickness tolerance, and sealing surface geometry. The square-port configuration is critical; it matches the cooling jacket passages and bolt hole pattern of Gen III Hemi intake manifolds precisely, preventing misalignment and edge-gapping that can compromise seal integrity over thousands of heat cycles. Rubber gasket construction allows slight conformance to machined surfaces, accommodating minor surface irregularities without requiring resurfacing in most cases.

Any owner or technician performing intake manifold removal on a 2009–2021 5.7L Hemi should replace these gaskets as a matter of course; reusing old gaskets invites coolant seepage and heat cycling failures within months. This set is ideal for routine maintenance, cooling system service, or performance builds where manifold swaps occur. Installation requires standard socket and wrench tools, manifold removal, careful cleaning of sealing surfaces, and sequential torque-down following factory specifications. At 0.045 lbs for the complete eight-piece set, these gaskets are lightweight yet robust—a small investment that prevents catastrophic overheating episodes and extends engine longevity on high-mileage or modified Hemi platforms.