Champion, RCJ6Y, Small Engine Spark Plug, Stock #852, Fits Outdoor pwr equip.Fits Chainsaws: Echo, Homelite, JD, Makita, Poulan, Red Max, Poulan, Shindaiwa, SOLO, Stihl. Fits FLYMO Lawnmower. Fits Some Small Engines Badger, Craftsman, Dolmar, Dyna, E-Z Roll, Earthquake, Echo, Homelite, Kawasaki, Husqvarna, Lesco, Makita, McCulloch, MTD, Red Max, Robin, Ryobi, Shindaiwa, Solo, Stihl, Tanaka, TORO, Webster, Tecumseh