High-performance IRIDIUM POWER IQ16 spark plugs, set of 12. The plugs are new and unused, but the packaging is old. - Brand: DENSO IQ16 - Model: IRIDIUM POWER - Type: Spark Plug - Quantity: Set of 12 - Part Number: IQ16 5301 Since it's a set of 12, it's suitable for (2), (3), (4), (6), and (12) cylinder cars. Please confirm the applicable vehicle models with your car manufacturer, dealer, or auto parts store before considering a purchase. Thank you for viewing.