#799585, Briggs & Stratton, Gas Cap, Fits On Engine Series 550E, 55Ex, 625E, 675Ex & 725Ex, 775, 850, & 875, & Professional Series, Engines, For Use On Brands Such As, Craftsman, Husqvarna, MT, Poulan Pro & Many Others Equipped With The Listed Engines, DIY Version Of Briggs Service Part# 799585.