Rotor for models: 8N, s/n 263844 & up, NAA, 600, 700, 800, 900, 2000, 4000, 1950 thru 1964. C0NN12200A$2.04 Davis Tractor Parts Ford 8N Dept 24263 Antioch Rd. Andalusia, AL 36421 Phone: 334-222-7214 Fax: 334-222-0025 Email: parts@davistractor.com