Power: 53 hp[P] Date of manufacture : 1955 - 1956
Production Manufacturer: International Harvester Total built: 2,070 (gas/LP)   1,118 (diesel) Original price: $3,400 (1956) Mechanical Chassis: 4x2 2WD Steering: hydraulic power Brakes: mechanical disc Cab: Open operator station. Transmissions: 5-speed sliding gear   10-speed partial power shift Photos International Harvester W-400 photos... Power Take-off (PTO) Rear PTO: independent Rear RPM: 540 Dimensions & Tires Weight: 6158 to 6550 pounds Front tire: 6.50-18 Rear tire: 15.00-30 Full dimensions and tires ... W-400 Serial Numbers Location: Serial plate on the clutch housing, left side of tractor. photo of W-400 serial number 1954: 501 1955: 510 1956: 2187 Final: 3858 how to read serial numbers...

International Harvester Type A 15HP	Power: 0	Date of manufacture : 1908 - 1911

International Harvester Type A 20HP	Power: 0	Date of manufacture : 1908 - 1911

International Harvester Type B 20HP	Power: 22 hp[B]	Date of manufacture : 1908 - 1913

International Harvester Type C 20HP	Power: 22 hp[B]	Date of manufacture : 1909 - 0000

International Harvester W-400	Power: 53 hp[P]	Date of manufacture : 1955 - 1956

International Harvester W-450	Power: 45 hp[P]	Date of manufacture : 1956 - 1958

Iseki AT23	Power: 22 hp	Date of manufacture : 2004 - 2009

Iseki AT25	Power: 24 hp	Date of manufacture : 2004 - 2009