Lowest price on brand new, in-the-box auto parts. Delphi GN10309 Ignition Coils COP Set of 6 for Buick Cadillac Chevy GMC Saab New. Ignition Coil Features & Benefits. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. 2009 Buick Enclave Ignition Coil Set. 2005-08 Buick LaCrosse V6 3.6L Ignition Coil Set. 2004-06 Buick Rendezvous V6 3.6L Ignition Coil Set. 2005-06 Cadillac CTS V6 2.8L Ignition Coil Set. 2004-09 Cadillac CTS V6 3.6L Ignition Coil Set. 2004-06 Cadillac SRX V6 3.6L Ignition Coil Set. ...