Spark Plug DENSO 3311 KJ16CR-U11

The DENSO Nickel KJ16CR-U11 spark plug (part number 3311) is a high-tech ignition system component featuring a patented U-groove on the ground electrode. This design expands the flame front at the moment of ignition, ensuring more complete combustion of the air-fuel mixture and reduced emissions. Technical specifications include a 14 mm thread diameter, 19 mm length, and 16 mm hex, making it compatible with Hyundai (i20, i30), KIA (Ceed, Cerato), Mazda (323, Premacy), and Dodge Caliber engines. The plug operates efficiently within a 105-190 hp power range, maintaining idle stability. High-quality insulator material prevents voltage leakage, while the nickel plating protects the shell from oxidation. It serves as a direct equivalent for OEM numbers 18829-11050 and 98079-5514G, ensuring durability and factory-grade performance standards.