NGK TR55 Spark Plugs

NGNGK TR55 Spark Plugs#41-TR55V-Power spark plugs are a patented design by NGK to improve ignitability and reduce quenching. Ignitability is improved by the V-groove cut in the center electrode parallel to the ground electrode, this directs the spark to to the edge of the center electrode thus exposing it to more of the air/fuel mixture. Quenching is reduced in much the same manner, drawing the spark to the edge of the center and ground electrodes reduces the surface area available to quench the spark. See quenching for more info.NGK TR55 Spark Plugs fits the following vehicle(s): 1999 Cadillac Escalade 2000 Cadillac Escalade 2005 Cadillac Escalade 2008 Cadillac Escalade 2009 Cadillac Escalade 2010 Cadillac Escalade 2011 Cadillac Escalade 2012 Cadillac Escalade 2013 Cadillac Escalade 2014 Cadillac Escalade 2010 Chevrolet Camaro LS2011 Chevrolet Camaro LS2012 Chevrolet Camaro LS2013 Chevrolet Camaro LS2014 Chevrolet Camaro LS2015 Chevrolet Camaro LS2010 Chevrolet Camaro LT2011 Chevrolet