NGK Single Iridium Spark Plug Box of 4 (LTR5IX-11)

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.This Part Fits: Year Make Model Submodel 2017-2020 Buick Envision Base 2017-2020 Buick Envision Essence 2017-2020 Buick Envision Preferred 2019 Buick Envision Premium 2012-2016,2018-2019 Buick LaCrosse Base 2012 Buick LaCrosse Convenience 2010-2011 Buick LaCrosse CX 2011 Buick LaCrosse CXL 2018-2019 Buick LaCrosse Essence 2012-2016 Buick LaCrosse Leather 2018-2019 Buick LaCrosse Preferred 2012,2018-