Looking for aftermarket parts to modify or upgrade your Cadillac STS with spark plugs? At Tunersports.com we carry a huge selection of the top name brand performance spark plug parts and accessories for your STS.
Whether you have a 2005 or 2011 Cadillac STS in Base to V trim we have you covered. We have 16 spark plugs available to mod your STS. All parts have free shipping to the Continental US 48 States.
 OUT OF STOCK 3186NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK G-Power Spark Plug Box of 4 (TR5GP) 2005-2006 Cadillac STS Base $33.89 |
OUT OF STOCK 90198NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK G-Power Spark Plug Box of 4 (LTR6GP) 2005-2011 Cadillac STS Base 2008-2009 Cadillac STS Platinum $40.26 |
 IN STOCK - LOW 3403NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK GP Platinum Spark Plug Box of 4 (TR55GP) 2007-2010 Cadillac STS Base 2008-2009 Cadillac STS Platinum $33.89 |
 IN STOCK 3690NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK IX Iridium Spark Plug Box of 4 (TR7IX) 2006-2009 Cadillac STS V $48.03 |
OUT OF STOCK 6509NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK Iridium IX Spark Plug Box of 4 (LTR6IX-11) 2005-2011 Cadillac STS Base 2008-2009 Cadillac STS Platinum $48.03 |
IN STOCK 7164NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK IX Iridium Spark Plug Box of 4 (TR55IX) 2007-2010 Cadillac STS Base 2008-2009 Cadillac STS Platinum $48.03 |
IN STOCK 7397NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK IX Iridium Spark Plug Box of 4 (TR5IX) 2005-2006 Cadillac STS Base $48.03 |
 OUT OF STOCK 97287NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK Laser Iridium Spark Plug Box of 4 (ITR5H13) 2007-2010 Cadillac STS Base 2008-2009 Cadillac STS Platinum $62.93 |
 OUT OF STOCK 90117NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK Laser Iridium/Platinum Spark Plug Box of 4 (ILTR6E11) 2006-2011 Cadillac STS Base 2008-2009 Cadillac STS Platinum $52.49 |
 OUT OF STOCK 3587NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK Laser Platinum Spark Plug Box of 4 (PLTR6A-10G) 2005-2011 Cadillac STS Base 2008-2009 Cadillac STS Platinum $52.53 |
OUT OF STOCK 3784NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK Laser Platinum Spark Plug Box of 4 (PTR5D-10) 2005-2006 Cadillac STS Base $52.53 |
OUT OF STOCK 7740NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK Laser Platinum Spark Plug Box of 4 (PTR5C-13) 2007-2010 Cadillac STS Base 2008-2009 Cadillac STS Platinum $52.53 |
 IN STOCK 2238NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK Nickel Spark Plug Box of 4 (TR5) 2005-2006 Cadillac STS Base $30.59 |
 OUT OF STOCK 91276NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK 04-16 Cadillac SRX Ruthenium Spark Plug 2005-2011 Cadillac STS Base 2008-2009 Cadillac STS Platinum $60.04 |
 OUT OF STOCK 94567NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK Ruthenium HX Spark Plug Box of 4 (TR5AHX) 2005-2010 Cadillac STS Base 2008-2009 Cadillac STS Platinum $60.04 |
 IN STOCK 3951NGK Spark Plugs (U.S.A.), Inc. is the largest OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. Its OE legacy, unsurpassed quality and leading vehicles in operation coverage reinforces NGK as The Ignition Specialist™. With over 80 years of automotive ex... NGK V-Power Spark Plug Box of 4 (TR55) 2007-2010 Cadillac STS Base 2008-2009 Cadillac STS Platinum $30.59 |