Power: 35 hp[B] Date of manufacture : 1936 - 1939
Production Manufacturer: Massey-Harris Type: Row-Crop tractor Factory: Racine, Wisconsin, USA Total built: 14,000 Mechanical Chassis: 4x2 2WD Steering: manual Cab: Open operator station. Transmission: 4-speed gear Photos Massey-Harris Challenger photos... Dimensions & Tires Wheelbase: 78 inches 198 cm Weight: 3900 lbs 1769 kg Front tire: 24x4.50 Rear tire: 52x8.00 Full dimensions and tires ... Challenger Serial Numbers Location: On side of main tractor frame. photo of Challenger serial number

Massey-Harris 444	Power: 53 hp[P]	Date of manufacture : 1956 - 1958

Massey-Harris 555	Power: 78 hp[P]	Date of manufacture : 1955 - 1958

Massey-Harris 744	Power: 46 hp	Date of manufacture : 1948 - 1958

Massey-Harris 745	Power: 0	Date of manufacture : 1954 - 1958

Massey-Harris Challenger	Power: 35 hp[B]	Date of manufacture : 1936 - 1939

Massey-Harris No. 1 12-25	Power: 27 hp[B]	Date of manufacture : 1918 - 1919

Massey-Harris No. 2 12-22	Power: 24 hp[B]	Date of manufacture : 1920 - 1922

Massey-Harris No. 3 15-28	Power: 31 hp[B]	Date of manufacture : 1922 - 1923

Massey-Harris Pacemaker	Power: 30 hp[B]	Date of manufacture : 1936 - 1939