Enhance the performance of your Altima or Sentra with this set of 4 Nissan 22401-JD01B Denso FXE20HR11 Iridium Spark Plugs. These high-quality spark plugs are made of polished nickel material and have a vintage design that complements the look of your car. With a manufacturer heat range of 250 °C, these spark plugs provide a direct replacement fitment that ensures a smooth and efficient engine operation. They come with a 2-year warranty and are OE/OEM part number 22401-JD01B. Upgrade your car's ignition system with these top-of-the-line spark plugs.