Package includes:Timing Chain (Primary Replace 12616608, 12633452; Secondary Replace 12633451, 12637744)Tensioner (Primary Lower-crank to Idlers Replace 12609263)Tensioner (Secondary Upper Right Replace 12609259, Left Replace 12609261)Idler Sprocket (Right Replace 12840, Left Replace 12839)Crank Sprocket (Replace 12599721, 12645465)Primary Guide Rail (Upper Replace12597417, Lower Right Replace 12586959)Secondary Guide Rail (Upper Right Replace 12599719, 12600462, Left Replace 12599720, 12600461)Secondary Guide Rail (Tensioner Arm Right Replace 12586961, 12623514, Left Replace 12623513)14 Bolts Applicable models: Compatible with Buick2007-08, 2010 Allure 3.6L V62010 Allure 3.0L V62008-21 Enclave 3.6L V62007-08, 2010-16 LaCrosse 3.6L V62010 LaCrosse 3.0L V6Compatible with Cadillac2013-15 ATS 3.6L V62007-15 CTS 3.6L V62010-14 CTS 3.0L V62007-09, 2012-16 SRX 3.6L V62010-11 SRX 2.8L V62010-11 SRX 3.0L V62007-11 STS 3.6L V62013-19 XTS 3.6L V6Compatible with Chevrolet2010-15 Camaro 3.6L V62012-17 Caprice 3.6L V62011-15 Captiva Sport 3.0L V62008-10 Captiva Sport 3.6L V62013-2016 Colorado 3.6L V62008-09, 2013-17 Equinox 3.6L V62010-12 Equinox 3.0L V62012-20 Impala 3.6L V62014-16 Impala Limited 3.6L V62008-12 Malibu 3.6L V62009-22 Traverse 3.6L V6Compatible with GMC2007-16 Acadia 3.6L V62017 Acadia Limited 3.6L V62015-2016 Canyon 3.6L V62010-12 Terrain 3.0L V62013-17 Terrain 3.6L V6Compatible with Pontiac2007-09 G6 3.6L V62008-09 G8 3.6L V62008-09 Torrent 3.6L V6Compatible with Saab2011 9-4X 2.8L V62010-11 9-5 2.8L V6Compatible with Saturn2007-09 Aura 3.6L V62007-10 Outlook 3.6L V62008-10 Vue 3.6L V6Compatible with Suzuki2009-10 Grand Vitara 3.2L V62008-09 XL-7 3.2L V62007-09 XL-7 3.6L V6