The Champion CJ8 SM ENG PLUG CARDED 843-1 is a genuine replacement spark plug designed for small engines. It is a high-quality part manufactured by Champion, a well-known brand in the industry. This spark plug is suitable for use in lawn mowers and other outdoor power equipment to ensure optimal engine performance and ignition. It is a reliable component that helps to maintain the efficiency and functionality of the engine, making it an essential part for those who want to keep their equipment running smoothly.