Minneapolis (MTM) 39-57
VerifiedThe Minneapolis 39-57 (Minneapolis Threshing Machine Company) was built 1928–1929. Specifications are being verified — see Sources below.
Specifications
| Nebraska Test | No. 163 (June 1929) |
|---|---|
| Engine | Stearns, 4-cylinder vertical, valve-in-head |
| Bore u00d7 stroke | 5u00bd in u00d7 6u00bd in |
| Rated speed | 1,000 rpm |
| Fuel | Gasoline |
| Magneto | American Bosch ZR4 Ed34 |
| Carburetor | Stromberg M4 (1u00be in) |
| Governor | Kingston, fly-ball |
| Air cleaner | Donaldson Simplex (oil filter) |
| Belt pulley | 20 in dia u00d7 8u00bd in face @ 620 rpm |
| Brake horsepower (rated) | 57.39 hp @ 997 rpm |
| Brake horsepower (max) | 64.55 hp |
| Drawbar horsepower (rated) | 39.84 hp (3,723 lb pull) |
| Drawbar horsepower (max) | 47.77 hp (5,950 lb pull) |
| Transmission | Enclosed gear, twin-disc dry clutch |
| Speeds | 3.0 / 3.9 mph (reverse 2.49) |
| Drive wheels | 58 in dia u00d7 19u00bd in face |
| Weight as tested | 9,695 lb (with operator) |
Specifications per the cited source below. Manufacturer-advertised figures can differ from tested values — confirm restoration-critical specs against factory literature.
Source: Nebraska Tractor Test No. 163 — Minneapolis 39-57 (1929)
Finding Parts
We don't publish part numbers we can't verify against factory literature. The authority for this model's part numbers is its factory parts catalog; interchange is serial- and configuration-dependent, so always confirm against the parts book before buying.
Surviving Examples (collector-reported census)
No tractors registered for this model yet. The MinnieMo registry is owner-submitted and moderator-reviewed — help start the census.
Sources & Verification Notes
Status: Verified
Primary source: TractorData — Minneapolis (Minneapolis Threshing Machine Co.) tractors tier 4
Last checked: 2026-05-31
Where this model fits in the Minneapolis-Moline history & timeline →
Owner Notes & Questions
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