Free O6503 Oil Filter Allis Chalmers 8550 4W305 Tractor, Chamberlain Super 70 90 Tractor, White Oliver 1900, 1950 Tractor, and Detroit 3-53, 3-71, 4-53, 4-71, 6-71, 6V53, 6V71, 6V92, 8V71 Diesel Engine, all with 23cm Long Cartridge