Briggs & Stratton, oh spark plug, fits most b&s ohv engines including 700, 725, 825, 850 & 875 series, also fits intek, intek pro, power built, intek v-twin, vanguard & els with a range of 6hp- 27hp, for use on such brands as craftsman, husqvarna, john deere, mt, poulan pro, snapper, toro & many others equipped with the listed engines, replaces champion model# rjj14yciy version of Briggs service part# 496018s.