Durafit Seat Covers Gray insulated Tractor Seat Cover for John Deere 18 inch One piece Seat John Deere. One piece 18 inches wide tractor seat cover in graphite automotive velour. Ride on mowers with foam padding. If your seat have armrests and does not fold forward, this cover will not work. Cover is graphite velour with half inch foam padding to take the heat out of that black vinyl seat. Machine washable, quick installation for ease of use.