Upgrade your engine's performance with the Champion Small Engine Spark Plug, designed for reliable starting and smooth operation. The plug features a 14 mm thread diameter and a resistor type configuration, ensuring a perfect fit and optimal function for your gasoline-powered equipment. Crafted with durable copper material, it effortlessly conducts electricity, enhancing fuel efficiency and engine longevity. With the Manufacturer Part Number #849/CJ6 and Interchange Part Number, this set of 2 spark plugs is a testament to quality and compatibility. Each plug is made in the United States, boasting a 3/4" hex size and a 12 V voltage rating, making them an ideal choice for a wide range of small engines. Keep your equipment running strong with these Champion spark plugs, precision-engineered for enduring performance.