AP02 For 2011-16 - 6.6L V8 OHV Duramax Diesel LML Cylinder Head Set HS54580C OEM : HS54580C, HSU26269-3 Fit For the Following Models: 2011-2016 6.6L Duramax Diesel LML.VIN code "8" 2011-2016 Express 2500 6.6L 6599CC 403CID V8 DIESEL OHV 2011-2016 Express 3500 6.6L 6599CC 403CID V8 DIESEL OHV 2011-2013 Express 4500 6.6L 6599CC 403CID V8 DIESEL OHV 2011-2016 Silverado 2500 HD 6.6L 6599CC 403CID V8 DIESEL OHV 2011-2016 Silverado 3500 HD 6.6L 6599CC 403CID V8 DIESEL OHV 2011-2016 Savana 2500 6.6L 6599CC 403CID V8 DIESEL OHV 2011-2016 Savana 3500 6.6L 6599CC 403CID V8 DIESEL OHV 2011-2013 Savana 4500 6.6L 6599CC 403CID V8 DIESEL OHV 2011-2016 Sierra 2500 HD 6.6L 6599CC 403CID V8 DIESEL OHV 2011-2016 Sierra 3500 HD 6.6L 6599CC 403CID V8 DIESEL OHV Package Includes: Multiple Layers Steel (MLS) Head Gasket Intake Manifold Gasket Exhaust Manifold Gasket Valve Cover Gasket Valve Stem Seals O-rings Other Small Gaskets