High-performance IRIDIUM POWER IQ16 spark plugs, set of 12. The plugs are, of course, brand new, but are in the old packaging. - Brand: DENSO IQ16 - Model: IRIDIUM POWER - Type: Spark plug - Quantity: Set of 12 - Part Number: IQ16 5301 Since it is a set of 12, it is suitable for (1)(2)(3)(4)(6)(12) cylinder cars. Please check the applicable vehicle models with your car manufacturer, dealer, auto parts store, etc. before considering purchasing. Thank you for viewing.