International Harvester BTD-6
| | 1955 - 1975 |
| Agricultural Crawler tractor |
|
| Production |
| Manufacturer | International Harvester
|
| Agricultural Crawler tractor |
| Built in Doncaster, England |
| Total built | 18632
|
| Variants |
| BT-6 | petrol
|
| BTD-6 | diesel
|
| International Harvester BTD-6 Power |
| Engine (gross) | 55 hp
41.0 kW
|
| Engine (net) | 50.5 hp
37.7 kW
|
| Drawbar (claimed) | 40.6 hp
30.3 kW
|
| Belt (claimed) | 47.9 hp
35.7 kW
|
| Mechanical |
| Drive | crawler
|
| Final drives | bull gear
|
| Open operator station |
| BTD-6 Serial Numbers |
| 1953 | 501
|
| 1954 | 757
|
| 1955 | 1942
|
| 1956 | 3462
|
| 1957 | 4641
|
| 1958 | 6463
|
| 1959 | 7932
|
| 1960 | 9944
|
| 1961 | 12038
|
| 1962 | 14492
|
| 1963 | 16125
|
| 1964 | 18076
|
| 1965 | 19373
|
| 1966 | 19707
|
| 1967 | 19924
|
| 1968 | 20138
|
| 1969 | 20262
|
| 1970 | 20414
|
| 1971 | 20560
|
| 1972 | 20645
|
| 1973 | 20723
|
| 1974 | 20858
|
| 1975 | 20900
|
FAQ: How to read a serial number table.
|
| Electrical |
| Charging system | generator
|
| References |
 |
| International 1917-1961 Vintage Tractor Special by Allen Condie |
| The Roar of Dust and Diesel - A Story of International Harvester Doncaster by Mike Teanby |
| Technical Annual published in 1967, by Power Farming |
| BTD-6 Laderaupe published by International Harvester |
| Farm Crawlers published by International Harvester |
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