M-R-S Manufacturing was a manufacturer of four-wheel drive tractors and construction machinery, notably scrapers. M-R-S roots began with the Mississippi Road Supply Company in 1927, a distributor of International Harvester and other construction equipment. M-R-S later began assembling large tractors using engine and transmission components from other vendors. M-R-S entered bankruptcy in 1987.
Model | Power | Years |
A-90 | 123 hp | 1962 - 1963 |
A-100 | unknown | 1962 - 1980 |
A-80 | 134 hp | 1964 - 1967 |
A-90B | unknown | 1964 - 1970 |
A-105 | unknown | 1964 - 1967 |
A-110 | unknown | 1964 |
A-95 | 186 hp | 1966 - 1980 |
A-80B | 141 hp | 1967 - 1980 |
A-85 | 202 hp | 1977 - 1980 |
A-92 | 238 hp | 1977 - 1980 |