Caterpillar Tractors
Caterpillar is a global manufacturer of industrial equipment and was a pioneer in tracked machinery. Caterpillar tractors have been used for farming since their beginning, but the company's focus shifted to construction as rubber tire tractors dominated the agricultural market. Caterpillar re-entered the farm market with the Challenger line of rubber-tracked crawlers in 1987. The Challenger line was sold to AGCO in 2002.Caterpillar - official site
Caterpillar Tractors
| Caterpillar 2-Ton | Power: 27 hp[B] | Date of manufacture : 1925 - 1928 |
| Caterpillar 5-Ton | Power: 44 hp[B] | Date of manufacture : 1925 - 1926 |
| Caterpillar 10-Ton | Power: 61 hp[B] | Date of manufacture : 1925 - 0000 |
| Caterpillar AG6 | Power: 240 hp | Date of manufacture : 1986 - 1993 |
| Caterpillar D3B SA | Power: 101 hp | Date of manufacture : 1985 - 1987 |
| Caterpillar D3C SA | Power: 110 hp | Date of manufacture : 1987 - 1991 |
| Caterpillar D4D SA | Power: 0 | Date of manufacture : 1966 - 1983 |
| Caterpillar D4E SA | Power: 97 hp | Date of manufacture : 1984 - 1991 |
| Caterpillar D5 SA | Power: 0 | Date of manufacture : 1967 - 1976 |
| Caterpillar D5B SA | Power: 120 hp | Date of manufacture : 1977 - 1985 |
| Caterpillar D6C SA | Power: 0 | Date of manufacture : 1970 - 1976 |
| Caterpillar D6D SA | Power: 165 hp | Date of manufacture : 1977 - 1991 |
| Caterpillar D7G SA | Power: 250 hp | Date of manufacture : 1980 - 1986 |
| Caterpillar D7C | Power: 128 hp | Date of manufacture : 1955 - 1958 |
| Caterpillar D7D | Power: 0 | Date of manufacture : 1959 - 1961 |
| Caterpillar D8L SA | Power: 400 hp | Date of manufacture : 1984 - 1987 |
| Caterpillar Diesel Fifty | Power: 73 hp[B] | Date of manufacture : 1933 - 1936 |
| Caterpillar Diesel Forty | Power: 62 hp[B] | Date of manufacture : 1934 - 1936 |
| Caterpillar Diesel Seventy-Five | Power: 103 hp[B] | Date of manufacture : 1933 - 1935 |
| Caterpillar Diesel Sixty | Power: 85 hp[B] | Date of manufacture : 1931 - 0000 |
| Caterpillar Diesel Sixty-Five | Power: 85 hp[B] | Date of manufacture : 1931 - 1932 |
| Caterpillar Diesel Thirty-Five | Power: 50 hp[B] | Date of manufacture : 1933 - 1934 |
| Caterpillar Fifteen | Power: 22 hp[B] | Date of manufacture : 1929 - 1933 |
| Caterpillar Fifty | Power: 67 hp[B] | Date of manufacture : 1931 - 1937 |
| Caterpillar Forty | Power: 54 hp[B] | Date of manufacture : 1934 - 1936 |
| Caterpillar RD4 | Power: 44 hp[B] | Date of manufacture : 1935 - 1940 |
| Caterpillar RD7 | Power: 75 hp[B] | Date of manufacture : 1935 - 1940 |
| Caterpillar RD8 | Power: 114 hp[B] | Date of manufacture : 1935 - 1936 |
| Caterpillar Seventy | Power: 77 hp[B] | Date of manufacture : 1933 - 1937 |
| Caterpillar Seventy-Five | Power: 103 hp[B] | Date of manufacture : 1933 - 1935 |
| Caterpillar Sixty | Power: 81 hp[B] | Date of manufacture : 1925 - 1931 |
| Caterpillar Sixty-Five | Power: 87 hp[B] | Date of manufacture : 1932 - 1933 |
| Caterpillar Ten | Power: 15 hp[B] | Date of manufacture : 1928 - 1932 |
| Caterpillar Thirty | Power: 40 hp[B] | Date of manufacture : 1925 - 1938 |
| Caterpillar Thirty-Five | Power: 48 hp[B] | Date of manufacture : 1932 - 1934 |
| Caterpillar Twenty | Power: 32 hp[B] | Date of manufacture : 1927 - 1931 |
| Caterpillar Twenty-Eight | Power: 41 hp[B] | Date of manufacture : 1933 - 1935 |
| Caterpillar Twenty-Five | Power: 33 hp[B] | Date of manufacture : 1931 - 1933 |
| Caterpillar Twenty-Two | Power: 32 hp[B] | Date of manufacture : 1934 - 1939 |