NGK Iridium IX Spark Plug LTR5IX-11 (6 Pack) for CHEVROLET TRAILBLAZER EXT LS 2003-2006 4.2L/256

Engine L6, Engine Size 4.2L/256 Engine Family GM inline 6-cylinder Fine wire Iridium center electrode ensures high durability and a consistently stable spark Iridium alloy has an extremely high melting point, perfect for today's high-performance engines Sold In 6 Pack