This DENSO FK20HQR10 spark plug features an iridium-enhanced alloy for superior durability and a high-performance firing tip. It is engineered to provide consistent spark energy, leading to improved fuel economy and smoother engine operation. The advanced design of the FK20HQR10 ensures reliable starting and sustained performance under various driving conditions. Its construction minimizes fouling and wear, extending the service life of the spark plug and reducing the need for frequent replacements. Choose DENSO for a spark plug that delivers on performance and longevity. The FK20HQR10 is a testament to DENSO's commitment to quality and innovation in ignition technology.