ACDelco Professional Iridium Spark Plugs are a high quality replacement for many vehicles on the road today. They are our latest in spark plug technology and an exact replacement for your vehicle's original components. Iridium composition provides a high melting point and great strength, and provides excellent wear resistance and durability. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. Product Features:Iridium composition provides a high melting point and great strength, providing excellent wear resistance and durabilityIridium offers excellent engine idle stability, reliable cold starting, quick acceleration and smooth performanceThree Piece Fired in Suppressor seal meters spark energy for long electrode life, prevents combustion leakage and helps block radio frequencies that can affect vehicle electronics
