Gen-3 Hemi RH MLS Head Gasket 3.996 Bore .035

The Gen-3 Hemi RH MLS Head Gasket 3.996 Bore .035 is a precision-engineered multi-layer steel gasket designed specifically for right-side cylinder head applications on modern Chrysler Hemi engines. Built by MAHLE ORIGINAL/CLEVITE—a trusted OEM supplier with decades of powertrain sealing expertise—this gasket delivers the exact bore diameter and compressed thickness required for tight, leak-free sealing on stock and modified Gen-3 Hemi platforms. Whether you're rebuilding after a head gasket failure, upgrading to a performance cylinder head, or assembling a stroker engine, this OEM-specification gasket ensures reliable combustion chamber sealing and prevents coolant or oil crossover.

Multi-layer steel (MLS) construction is the modern standard for high-performance and stock engine applications, offering superior durability and gasket crush recovery compared to older asbestos or composite designs. The 3.996-inch bore diameter matches the Gen-3 Hemi's precise combustion chamber size, while the .035-inch compressed thickness is engineered to work with both stock and aftermarket cylinder head finishes. The right-side (RH) orientation ensures proper coolant passage alignment and oil gallery registration, critical for maintaining correct engine coolant flow and preventing hot spots. MAHLE gaskets are manufactured to OEM tolerances and undergo rigorous quality control, making them the preferred choice for professional engine builders and DIY enthusiasts who demand reliability over cost-cutting alternatives.

This gasket is essential for anyone performing cylinder head replacement, valve train service, or complete engine rebuilds on 5.7L and 6.1L Gen-3 Hemi engines found in Dodge, Chrysler, and Jeep applications from 2003 onward. It pairs seamlessly with OEM or performance heads from manufacturers like Indy Cylinder Heads, Edelbrock, or Trick Flow and works equally well in stock, turbocharged, or supercharged Hemi builds. Always use new gaskets during assembly—never reuse old gaskets—and follow manufacturer torque specifications and sequences to ensure proper clamping load and prevent future leaks. Proper gasket installation with clean mating surfaces and correct head bolt tension is the foundation of a long-lasting, reliable engine.