Power: 33 hp Date of manufacture : 1901 - 1906
Production Manufacturer: Hart-Parr Type: Standard-tread tractor Factory: Charles City, Iowa Hart-Parr 17-30 Power Drawbar (claimed): 17 hp 12.7 kW Belt (claimed): 30 hp 22.4 kW Hart-Parr 17-30 Engine Mechanical Chassis: 4x2 2WD Dimensions & Tires Full dimensions and tires ... 17-30 Serial Numbers 1901: 1205 1902: 1206 1903: 1208 1904: None 1905: 1346 1906: 1435 how to read serial numbers...

Happy Farmer M 7-12	Power: 13 hp	Date of manufacture : 0000 - 0000

Hart-Parr 12-24	Power: 26 hp	Date of manufacture : 1924 - 1930

Hart-Parr 16-30	Power: 33 hp	Date of manufacture : 1924 - 1926

Hart-Parr 17-30	Power: 33 hp	Date of manufacture : 1901 - 1906

Hart-Parr 18-36	Power: 40 hp	Date of manufacture : 1926 - 1930

Hart-Parr 20-40	Power: 44 hp	Date of manufacture : 1912 - 1914

Hart-Parr 22-45	Power: 50 hp	Date of manufacture : 1903 - 1911

Hart-Parr 28-50	Power: 55 hp	Date of manufacture : 1927 - 1930