Power: 78 hp[P] Date of manufacture : 1955 - 1958
Production Manufacturer: Massey-Harris Type: Standard-tread tractor Original price: $4200 (1958) Massey-Harris 555 Power PTO (claimed): 71 hp 52.9 kW Drawbar (tested): 57.55 hp 42.9 kW Belt (tested): 66.91 hp 49.9 kW Massey-Harris 555 Engines Mechanical Chassis: 4x2 2WD Cab: Open operator station. Transmission: 4-speed gear Photos Massey-Harris 555 photos... Dimensions & Tires Weight: 7500 lbs 3402 kg Front tire: 7.50-18 Rear tire: 14-34 Full dimensions and tires ... 555 Serial Numbers Location: Right side of tractor frame. photo of 555 serial number

Massey-Harris 202	Power: 41 hp[P]	Date of manufacture : 1940 - 1942

Massey-Harris 203	Power: 41 hp[P]	Date of manufacture : 1940 - 1947

Massey-Harris 333	Power: 41 hp[P]	Date of manufacture : 1956 - 1958

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