6.7L 24v 6 cylinder Cummins MLx Cylinder Head Gasket. 4.312 Gasket Bore. Stopper layer to withstand additional cylinder pressures of diesel engines. Compressed operating thickness is .062. Each Description COMETIC MLX (Multi-Layer Stopper) gaskets utilize an integrated stopper layer for combustion chamber sealing and improved clamp load around the cylinder without increasing bore distortion. MLX technology can be found in some head gaskets and are made from the same materials as our MLS Head Gaskets. No sealants or re-torque required. Vehicle Application Domestic Auto Cummins 6.7L Cummins2014 Ram 2500 6.7 L 62014 Ram 3500 6.7 L 62013 Ram 2500 6.7 L 62013 Ram 3500 6.7 L 62013 Ram 4500 6.7 L 62013 Ram 5500 6.7 L 62012 Ram 2500 6.7 L 62012 Ram 3500 6.7 L 62012 Ram 4500 6.7 L 62012 Ram 5500 6.7 L 62011 Ram 2500 6.7 L 62011 Ram 3500 6.7 L 62011 Ram 4500 6.7 L 62011 Ram 5500 6.7 L 62010 Dodge Ram 2500 6.7 L 62010 Dodge Ram 3500 6.7 L 62010 Dodge Ram 4500 6.7 L 62010 Dodge Ram 5500 6.7 L 62009 Dodge Ram 2500 6.7 L 6