Deal 6pcs Brand New Ignition Coil For Buick/Chevy/GMC/Saturn/Saab/Cadillac Allure LaCrosse Rendezvous Enclave Traverse Vectra Acadia Outlook 9-3 Turbo CTS SRX STS 2.8L/3.6L V6 Please use amazon's part finder filter or check the detailed fitment information stated in the description to confirm if this item will fit your vehicle Set of 6 OE Spec ignition coils Reference OE#:D501C D510A E383 E405 IC505 C1508 C1645 52-1816 5C1551 1788489 12566569 12583514 12613051 12613057 12629037 00128 Direct Replacement. Perform Like Original Parts Life time warranty 2005-2008 Buick Allure V6 3.6L 2005-2008 Buick LaCrosse V6 3.6L 2004-2006 Buick Rendezvous V6 3.6L 2009 Buick Enclave V6 3.6L 2009 Chevy Traverse V6 3.6L 2006-2008 Chevy Vectra V6 2.8L 2009 GMC Acadia V6 3.6L 2009 Saturn Outlook V6 3.6L 2006-2009 Saab 9-3 V6 2.8L Turbo 2004-2006 Cadillac SRX V6 3.6L 2005-2007 Cadillac CTS V6 2.8L 2004-2007 Cadillac CTS V6 3.6L 2008 Cadillac CTS V6 3.6L With Direct Injection Only 2009 Cadillac CTS V6 3.6L (8th VIN Digit V Only) 2005-2009 Cadillac STS V6 3.6L Heavy duty secondary Copper windings provide high performance &amp; long life. Heavy duty large primary Cppper windings allow for better and quicker energy flow providing superior&amp; more reliable spark. A ll our copper coils are made in Germany. Each part is carefully tested in order to provide high quality parts to our customers. The products standard according to ISO 9000 / ISO 9001 / ISO 9002 certified facilitie. 100% mechanically tested prior before leaving the factory to ensures high-class performance and enhanced durability