Replacement high back seat with molded dishpan seat. For Case-IH models: 480B, 580B, 1190, 1290, 1390 Bolt patterns: 8" X 11.5" 11.25" X 11.5" Original Seat Uses M8X16 Mounting Bolts, A&I Seats Uses 5/16"-18 NC Bolts.;For Case-IH 480B 580B 1190 1290 1390, Various Models of Case-IH Skid Steer Loader, Bobcat, Clark Industrial, Ford, New Holland, Gehl and Melroe Tractors