ACDelco Intake Manifold Gasket Set With 10 New Intake Crush Bolts & 2 Intake Pads For 1999-2014 Chevy GMC Hummer 4.8L 5.3L 6.0L Engine Includes Latest Upgraded Design Green Gaskets Includes All 10 Intake Manifold Crush Bolts Includes Both Intake Pads Fixes PO171 & PO174 DTC's (Diagnostic Trouble Codes)