Fuel Cap, For Use With Ariens Mini Zoom, Sport Zoom, EZR, HVZ, rear engine rider and yard tractors Briggs & Stratton For 7 thru 12.5 HP vertical, 3.5, 5 and 9 HP Industrial Plus and 5.5 HP Intel engines UNIVERSAL Also Lawn-Boy and other brands HUSTLER For new style tanks, Application Snapper/7012515, Diameter ID 2 In.