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M-R-S
Explore 10 farm tractor models. Follow a model into its engine specifications, transmissions, dimensions, historical photographs, and available test records.
About M-R-S
M-R-S traced its roots to Mississippi Road Supply, founded in 1927. It expanded from equipment distribution into heavy tractors and construction machinery before bankruptcy in 1987.
- Beginning
- 1927 predecessor business
- Founder / origin
- Individual founder not established by the reviewed source
- Known for
- Large four-wheel-drive tractors and scrapers
- Sale / later history
- Bankruptcy in 1987
History and legacy
International Harvester and other construction machinery formed part of the early distribution business. Later M-R-S tractors used engines and transmissions from external suppliers. A confirmed post-bankruptcy buyer or restart is not established by the reviewed account.
Sources & further reading
History reviewed 2026-10-20.
Showing 10 of 10 models
A-92
1977–1980
238 hp
Source index power
4x4 Only
Drive
A-85
1977–1980
202 hp
Source index power
4x4 Only
Drive
A-95
1966–1980
186 hp
Source index power
4x4 Only
Drive
A-80B
1967–1980
141 hp
Source index power
4x4 Only
Drive
A-80
1964–1967
134 hp
Source index power
4x4 Only
Drive
A-90
1962–1963
123 hp
Source index power
4x4 Only
Drive
A-90B
1964–1970
Power not listed
No index power figure
4x4 Only
Drive
A-100
1962–1980
Power not listed
No index power figure
4x4 Only
Drive
A-105
1964–1967
Power not listed
No index power figure
4x4 Only
Drive
A-110
1964
Power not listed
No index power figure
4x4 Only
Drive
Index power values can include estimates derived from belt or PTO power. They are identified on each model card and are not interchangeable with a measured engine rating. Model years and missing values follow the source index.