Big Bud Tractors Inc. was born out of the Wagner tractor dealership in Havre, Montana in 1961. Big Bud manufactured heavy-duty high horsepower tractors with industrial engines fitted to custom-built frames. The company developed a number of innovations for heavy duty tractors, including tilt cabins and a skid system for engine removal. The company was purchased by Messner Brothers in 1985. Production slowed in the late 1980s and the last Big Bud rolled off the line in 1992.
Model Power Years
Big Bud 16V-747 tractor photo Big Bud 16V-747 900hp 1978 -
No photo available Big Bud 360 0hp 1976 - 1989
No photo available Big Bud 360/10 360hp 1979 - 1980
No photo available Big Bud 360/30 360hp 1979 - 1981
Big Bud 370 tractor photo Big Bud 370 370hp 1986 - 1989
No photo available Big Bud 375 0hp 1986 - 1990
No photo available Big Bud 400 400hp 1986 - 1988
No photo available Big Bud 400/20 400hp 1979 - 1981
Big Bud 400/30 tractor photo Big Bud 400/30 400hp 1979 - 1981
No photo available Big Bud 402 402hp 1986 - 1989
No photo available Big Bud 440 440hp 1987 - 1989
No photo available Big Bud 450 450hp 1986 - 1989
No photo available Big Bud 450/20 450hp 1979 -
Big Bud 450/50 tractor photo Big Bud 450/50 450hp 1979 -
No photo available Big Bud 500 500hp 1986 - 1990
Big Bud 525/20 tractor photo Big Bud 525/20 525hp 1979 - 1982
Big Bud 525/50 tractor photo Big Bud 525/50 525hp 1979 - 1982
Big Bud 600/50 tractor photo Big Bud 600/50 600hp -
Big Bud 650/50 tractor photo Big Bud 650/50 650hp 1980 - 1981
No photo available Big Bud 739 0hp 1986 - 1987
No photo available Big Bud 740 740hp 1987 - 1990
No photo available Big Bud HN250 250hp 1970 - 1975
No photo available Big Bud HN320 320hp 1976 - 1978
No photo available Big Bud HN350 350hp 1973 - 1978
Big Bud HN360 tractor photo Big Bud HN360 360hp 1977 - 1978
No photo available Big Bud KT350 350hp 1975 -
No photo available Big Bud KT360 360hp 1977 -
No photo available Big Bud KT400 450hp 1977 - 1978
No photo available Big Bud KT450 450hp 1976 - 1978
No photo available Big Bud KT525 525hp 1977 - 1978