Minneapolis-Moline 445
VerifiedThe Minneapolis-Moline 445 (1956–1959) was a mid-size utility/row-crop tractor — the larger companion to the 335 — built in Universal, Utility, Industrial, and even Military forms.
Identification & configuration
TractorData lists the 445 across Universal, Utility, and Industrial configurations; a Military 445 was also produced. See the model index.
Factory paint
Per the MMCI paint records, the 445 used Prairie Gold (PG2) with Cherry Red wheels — but the 1958 Military 445 was finished entirely in Olive Drab, a striking and verifiable exception. See the full paint reference.
What to verify
- Configuration: Universal/Utility/Industrial/Military; the Military version is Olive Drab.
- Serial / plate: on the transmission case; decode the serial (ranges below).
Sources & Verification Notes
Configuration per TractorData; paint (incl. the Olive Drab Military scheme) per the MMCI Paint Committee; serial ranges per Jensales as cited below. No horsepower or production-count figures are asserted beyond what the cited sources state.
Serial Number Ranges
| Year | Serial range | Number type | Source confidence |
|---|---|---|---|
| 1956 | 10100001 – 10102854 | tractor plate | Verified Medium |
| 1956 | 10200001 – 10201465 | tractor plate | Verified Medium |
| 1957 | 10102855 – 10104125 | tractor plate | Verified Medium |
| 1957 | 10201466 – 10202101 | tractor plate | Verified Medium |
| 1957 | 11100076 – 11100388 | tractor plate | Verified Medium |
| 1958 | 10104126 – 10104804 | tractor plate | Verified Medium |
| 1958 | 10202102 – 10202242 | tractor plate | Verified Medium |
| 1958 | 11100389 – 11100389 | tractor plate | Verified Medium |
| 1958 | 15300001 – 15300001 | tractor plate | Verified Medium |
| 1958 | 15700001 – 15700001 | tractor plate | Verified Medium |
| 1958 | 15200001 – 15200001 | tractor plate | Verified Medium |
| 1959 | 10104805 – 10104805 | tractor plate | Verified Medium |
| 1959 | 10202243 – 10202243 | tractor plate | Verified Medium |
| 1959 | 15400001 – 15400001 | tractor plate | Verified Medium |
Engine
- 3.4 L Four-Cylinder (Gas & Diesel) (≈206 ci / 3.4 L, Gasoline, diesel)
Nebraska Tractor Test Results
Official, independently measured performance from the University of Nebraska Tractor Test Laboratory (public-domain reports). Figures are as-tested on a specific fuel/transmission variant — your tractor may differ. Look up the full report by test number.
| Test No. | Fuel | Year | Drawbar hp (max) | PTO/Belt hp |
|---|---|---|---|---|
| 578 | Gasoline | 1956 | 38.48 hp | 41.95 hp (Belt) |
Factory Paint Colors
Body, wheel, and powertrain colors documented for this model's era by the MMCI Paint Committee. The exact part-by-part configuration, year breaks, and footnotes are in the full paint reference. Individual tractors vary — special orders and regional exceptions were common, so confirm against your own machine.
- Prairie Gold (body)
- Industrial / Highway Yellow (body)
- Cherry Red (wheels / trim)
Manuals & Literature
Factory publications cataloged for this model (MMCI / Floyd County Museum). We catalog the publication and its coverage — not its contents. Obtain copies from the museum or a reproduction seller.
Operator's Manuals
Parts Catalogs
Service / Shop Manuals
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.
Factory parts catalogs
Engine-family parts
This model uses the 3.4 L Four-Cylinder (Gas & Diesel), shared with ZB. Many engine-family components are common across these models — verify fitment against the parts catalog, as serial- and configuration-specific variations exist.
Carburetor
Documented carburetors for this model: Marvel-Schebler TSX-633 (MM #10A6464), Marvel-Schebler TSX-713 (MM #10A11452), Marvel-Schebler TSX-714, Marvel-Schebler TSX-797 (per MolineParts.com — MM Carburetor Applications (Marvel-Schebler / Zenith / factory)). Applications vary by year, fuel, and serial — confirm your tractor's number against the carburetor tag and your parts catalog before ordering a kit.
Documented parts
Cataloged Minneapolis-Moline part numbers documented for this model. Applications vary by serial, year, and configuration — confirm against your parts book before ordering.
Clutch
- 10A20477 — 11" clutch, 13-spline, 1.75" dia. (Industrial)
- 10A18593 — 11" clutch, 13-spline, 1.75" dia., organic solid disc
- 10A18594 — 11" clutch, 13-spline, 1.75" dia., organic spring-dampened
- 10P232 — Pressure plate, 11", three levers, 9 springs
Oil Filter
- 10P732 — Oil filter (cartridge)
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.
Service Bulletins
Factory dealer service bulletins — supplements, field conversions, and fixes for this model. See the full reference.
- C 125 335 & 445 Field Conversions bundles/parts
- C 133 335 & 445 Supplement S205 & S 221 3 Lube fittings
- C 137 335/445/5 Star Supplement, Gear Gang Attachment
- C 159 A 335/445/Jet*/4*4*Super, 5-Star, Installation of Reverse Shuttle
- C 104 445 Supplement to S 205
- C 122 445 Installing Selective Lift Equipment
- C 127 445 Install Tel-O-Flo Hyd. Lift
- C 128 445 In Spanish
- C 139 445 Supplement to S 205
- C 82 445 Pre-Delivery Check Sheet
- C 95 445 Field Changes/Installations of Oil Leak/
- C 99 445 Assembling Crated 445 universals
- D 300 445 Correction to S 205, rear wheel spacing
- D 301 445 Install marker attachment for C1200/1400
- D 315 445 Attaching RJ Huskor to 445 tractor
- D 318 445 Ampli-Torc adjustment opening, early models
- D 321 445 Depth Control Valve installation
- D 322 445 Adjusting Ampli-Torc & PTO Clutches
- D 323 445 Installing PTO & Belt Pulley
- D 324 445 Installing 15 GPM Hydraulic pump
- D 326 445 Attaching MO Mower
- D 328 445 Repositioning Headlights
- D 336B 445 Operating, adjusting & Servicing Tel-O-Flo Lifts
- D 339 445 Depth Limit Control Rods to install on tractors
- D 344 445 3-Point hitch assist spring assembly available
- D 345 445 Front End Weights
Sources & Verification Notes
Status: Verified
Primary source: TractorData — Minneapolis-Moline model listings tier 4
Last checked: 2026-06-01