Cylinder head gaskets are sold individually and may require new head bolts based on application. 2001-2003, 2005-2006 GMC Sierra 1500 HD Head Gasket - Replacement 598-071 Cylinder Head Gaskets MAHLE Multi-Layer Steel (MLS) Head Gasket - 54445 Individual Head Gasket GM 6.0L VIN H N & U 1999-2008 CONSOLIDATED MLS. Multi-layer steel (MLS) cylinder head gaskets. Increase torque and performance while decreasing oil consumption... MAHLE Original gaskets utilizes OE equivalent or better materials in all our gaskets Best price for Mahle® 54445 Cylinder Head Gasket. Lifetime Replacement Guarantee and Free 60-Day Returns. Buy now MAHLE Original gaskets provide world class sealing products trusted by OEMs & Technicians around the globe