✓OE Number - 12558178, BTR73450, 12617944, 12612350, 12630223, 12633904, 12637683, 12585673, 12639249, 89060436, 12551933, 12611384, 12558177, 12622033. Our rigorously tested, state-of-the-art manufacturing process results in fully OEM-specified fittings that are easy to install. Advanced manufacturing techniques ensure durability and optimal operation at higher or lower temperatures, saving you money and time
✓Fitment - The engine cylinder head gasket kit is compatible with 2001-2006 Chevy Silverado 2500 HD/Silverado 3500 6.0L, 1999-2004 Silverado 2500 6.0L, 1999-2004 Corvette 5.7L, 2003-2006 Express 3500 6.0L, 2001-2006 Silverado 1500 HD, 1999-2002 Camaro 5.7L, 2007 Silverado 1500 Classic/Silverado 2500 HD Classic/Silverado 3500 Classic 6.0L, 2003-2007 Express 2500 6.0L, 2000-2006 Suburban 2500 6.0L, 2003 Silverado 1500 6.0L, 2003-2010 W4500 Tiltmaster 6.0L, 2003-2009 W3500 Tiltmaster 6.0L, 2007 Silverado 1500 HD Classic, 2006 Suburban 1500 6.0L
✓Fitment - The engine cylinder head gasket kit is compatible with 2003-2005 GMC Sierra 2500 HD 6.0L, 2001-2006 Sierra 1500/Sierra 3500/Yukon/Yukon XL 1500 6.0L, 2003-2007 Savana 2500/Savana 3500 6.0L, 2001-2006 Sierra 1500 HD, 2001-2004 Sierra 2500 6.0L, 2007 Sierra 1500 Classic/Sierra 2500 HD Classic/Sierra 3500 Classic 6.0L, 2000-2006 Yukon XL 2500 6.0L, 2003-2010 W4500 Forward 6.0L, 2004-2008 W3500 Forward 6.0L, 2007 Sierra 1500 HD Classic
✓Package Included - 1 x Gen III Valley Cover Gasket 12558178, 2 x LS1/LS2/LS3 Header Gasket, 1 x LS Oil Pan Gasket, 2 x LS Water Pump Gasket, 1 x LS Front Cover Gasket, 2 x LS Valve Cover Gasket, 1 x LS Damper Seal, 1 x LS Rear Cover Gasket, 1 x Rear Main Seal, 4 x Gaskets 12551933, 1 x Oil Filter Adapter Gasket 12611384, 2 x Knock Sensor Grommet 12558177, 2 x Multi-Layer Steel (MLS) Head Gaskets for LS9 engines, 1 x RTV Silicone
✓Superior Quality - Our engine cylinder head gasket is made of multi-layer stainless steel + graphite composite material, which can withstand 400℃ high temperature and 15bar high pressure. Excellent resistance to high temperature, high pressure, and corrosion, ensures maximum compression ratio allowing the engine to maintain an excellent seal for a longer period of time