Stens 130-079 Spark Plug, Replaces Champion 863/RCJ8Y. Replaces OEM: Ariens 00186800, 21533600, 21536000 Briggs & Stratton 801254 Champion 863, RCJ8Y Gravely 21533600, 21536000 Husqvarna 952030201 John Deere TY6081 Kawasaki 92070-7003 Tecumseh 611049 Toro 92070-7003.