Twin City 25-45
Verified
The Twin City 25-45 was a Minneapolis Steel & Machinery prairie tractor of about 1913–1920, notable for spanning several engine designs across its run.
Identification & configuration
Per the compiled record, the 25-45 used a 6 × 8 engine that evolved from horizontal crossmotor to vertical crossmotor to vertical inline forms over its production. See the Twin City overview.
Factory paint
These prairie-era tractors predate the documented MMCI paint tables; verify original finish against period evidence. See the full paint reference.
What to verify
- Serial: 2501–3126, with sub-ranges marking the engine changes; decode yours (ranges below).
- Engine type: identify horizontal vs vertical crossmotor vs inline by serial sub-range.
Sources & Verification Notes
Serials and engine notes per Tony Thompson’s compiled Twin City record (MMCI). No horsepower or production-count figures are asserted beyond what the cited sources state.
Serial Number Ranges
| Year | Serial range | Number type | Source confidence |
|---|---|---|---|
| — | 2501 – 3126 | tractor plate | Verified High |
Specifications
| Engine | Twin City 14.8L 4-cyl kerosene |
|---|---|
| Displacement | 14.8 L |
| Cylinders | 4 |
| Fuel | Kerosene |
| Drawbar (claimed) | 25 hp / 18.6 kW |
| Belt (claimed) | 45 hp / 33.6 kW |
| Transmission | 2-speed gear |
| Drive | Two-wheel drive |
| Steering | Manual |
| Weight | 15,500 lbs / 7,030 kg |
| Fuel tank | 66 gal / 249.8 L |
| Years built | 1916 - 1920 |
| Built | Minneapolis, Minnesota, USA |
Specifications per the cited source below. Manufacturer-advertised figures can differ from tested values — confirm restoration-critical specs against factory literature.
Source: TractorData: Twin City 25-45
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: Twin City Tractor Serial Numbers — Tony Thompson (MMCI) tier 2
Last checked: 2026-05-31
Where this model fits in the Minneapolis-Moline history & timeline →
Videos
Curated third-party videos — MinnieMo is not affiliated; links open on YouTube.
Owner Notes & Questions
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