Knife Assy., 8' Plain Standard, KNIFE Sickle ASSY. Measures 99.75" from outer end to center of drive bolt hole. Smooth sections. According to parts breakdown this is a "plain" non-serrated standard sickle. Application for Ford 515 Sickle Mower. Please double check measurements and head design. New OEM Ford part number 241897. Freight Truck Item, please contact us for a rate.