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 |
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