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International Harvester BTD-20

International Harvester BTD-20 tractor
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The International Harvester BTD-20 is an agricultural crawler tractor produced from 1959 to 1974. Built in Doncaster, England, a total of 3038 units were manufactured. It features a Rolls-Royce 12.2L 6-cylinder liquid-cooled diesel engine delivering 135 hp net power. The tractor has a 6-speed gear transmission with 6 forward and reverse gears, a crawler drive with bull gear final drives, and an open operator station. It rides on 20-inch wide tracks with a length on ground of 94 inches. The tractor measures 165.1 inches in length, 94 inches in width, and 89.7 inches in height, with an operating weight of 30300 lbs. The electrical system uses a generator for charging.
International HarvesterBTD-20tractorcrawler tractorspecificationsenginetransmissiondimensionspoweragricultural tractor
Power135 hp
Founded1959 - 1974
ModelBTD-20

Technical Specifications

Detailed specifications and technical data for International Harvester BTD-20

Power

Engine (net):135 hp (100.7 kW)
Drawbar (claimed):112.5 hp (83.9 kW)

Engine

Type:diesel
Model:Rolls-Royce C6N
Torque:480 lb-ft (650.9 Nm)
Cooling:liquid-cooled
Starter:electric
Cylinders:6-cylinder
Fuel tank:70.9 gal (268.4 L)
Rated RPM:1550
Torque RPM:1150
Bore/Stroke:5.125x6.00 inches (130 x 152 mm)
Power (net):135 hp (100.7 kW)
Displacement:742.6 ci (12.2 L)
Oil capacity:33.6 qts (31.8 L)
Starter volts:24
Coolant capacity:43.2 qts (40.9 L)

Tracks

Width:20 inches (50 cm)
Area on ground:3760 in² (2.4 m²)
Length on ground:94 inches (238 cm)

Dimensions

Gauge:74 inches (187 cm)
Width:94 inches (238 cm)
Height:89.7 inches (227 cm)
Length:165.1 inches (419 cm)
Ground clearance:14 inches (35 cm)
Operating weight:30300 lbs (13744 kg)

Electrical

Charging system:generator

Mechanical

Drive:crawler
Final drives:bull gear
Operator station:Open operator station

Production

Type:Agricultural Crawler tractor
Built in:Doncaster, England
Total built:3038
Years produced:1959 - 1974

Transmission

Type:gear
Gears:6 forward and reverse
Clutch:406mm dry disc
Oil capacity:42.8 qts (40.5 L)

Serial Numbers

1959:556
1960:845
1961:1260
1962:1637
1963:1973
1964:2296
1965:2549
1966:2820
1967:2996
1968:3140
1969:3236
1970:3314
1971:3439
1972:3489
1973:3542
1974:3590
Final:3594