Twin City 60-90
VerifiedThe Twin City 60-90 was Minneapolis Steel & Machinery’s six-cylinder prairie heavyweight, built roughly 1916–1921 — one of the largest of the early Twin City tractors and an MM predecessor.
Identification & configuration
Per the compiled record, the 60-90 used a large six-cylinder engine (about 7¼ × 9). Its serial numbers were shared with the four-cylinder 40-65. 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
- Shared serials with the 40-65: both used the 1001–1809 block — the lookup returns both; the 60-90 is the six-cylinder.
- Engine: confirm the six-cylinder to distinguish it from the four-cylinder 40-65.
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 |
|---|---|---|---|
| — | 1001 – 1809 | tractor plate | Verified High |
Specifications
| Years built | 1916 - 1918 |
|---|---|
| Original price | $4,200 in 1925 |
| Built | Minneapolis, Minnesota, USA |
| Total built | 20 |
| Engine | Twin City 36.5L 6-cyl kerosene |
| Engine power | 110 hp / 82.0 kW |
| Fuel tank | 86 gal / 325.5 L |
| Drawbar (claimed) | 60 hp / 44.7 kW |
| Belt (claimed) | 90 hp / 67.1 kW |
| Plows | 12 (14-inch) |
| Transmission | 1-speed gear |
| Drive | Two-wheel drive |
| Steering | Manual |
| Operator station | Open operator station with canopy |
| Type | Standard-tread tractor |
| Weight | 27,100 lbs / 12,292 kg |
| Front tire | 42x12 |
| Rear tire | 84x30 |
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 60-90
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.
20 built (per Production total source — Twin City 60-90) — none registered yet. Be the first to put one on the map.
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
Starting and driving the BIGGEST Twin City prairie tractor! 60-90! WatchJaredWork
Twin City 60-90 Tractor in Concordia Kansas Old Engine DudeCurated third-party videos — MinnieMo is not affiliated; links open on YouTube.
Owner Notes & Questions
Own one, restored one, or have a question about this model? Share it below. Notes are moderated before they appear, and owner-reported details are not treated as verified facts until cited.
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