Minneapolis 12-25

The Minneapolis 12-25 is a tractor produced by Minneapolis. It is equipped with a 445.3 ci 7.3 L engine. Transmission: 2 forward and 1 reverse. Operating weight: 6400 lbs 2903 kg.

Fuel & Capacities

Kerosene

Transmission

2 forward and 1 reverse

Operating Weight

6400 lbs 2903 kg

Overview

	1920 - 1926 Standard-tread tractor

Production
Manufacturer	Minneapolis (a part of Minneapolis Threshing Machine Company)
Standard-tread tractor
Built in Hopkins, Minnesota, USA

Minneapolis 12-25 Engine
Minneapolis Threshing Machine 7.3L 4-cyl kerosene
Engine details ...

Minneapolis 12-25 Transmission
2-speed gear
Transmission details ...

Minneapolis 12-25 Power
Drawbar (claimed)	12 hp 8.9 kW
Belt (claimed)	25 hp 18.6 kW
Plows	3 (14-inch)
Drawbar (tested)	16.26 hp 12.1 kW
Belt (tested)	26.24 hp 19.6 kW
Performance test details ...

Mechanical
Two-wheel drive
Manual steering

Dimensions & Tires
Weight	6400 lbs 2903 kg
Rear tire	56x12
Full dimensions and tires ...

Belt Pulley
Diameter	15 inches 38 cm
Width	6.5 inches 16 cm
RPM	750

Engine

Engine Detail — 445.3 ci / 7.3 L Kerosene

Manufacturer	Minneapolis Threshing Machine
Fuel Type	Kerosene
Configuration	4-cylinder, liquid-cooled
Displacement	445.3 ci 7.3 L
Bore/Stroke	4.50x7.00 inches 114 x 178 mm
Rated RPM	750
Starter type	hand crank

Transmission

Transmission — 2 forward and 1 reverse gear

Type	gear
Gears	2 forward and 1 reverse

Dimensions

Minneapolis 12-25 Tires
Ag rear	56x12 (steel)

Dimensions
Length	166 inches 421 cm
Width	86 inches 218 cm
Height	64 inches 162 cm
Weight	6400 lbs 2903 kg

Tests

Nebraska Tractor Test 13
May 17 - June 3, 1920 Link: Nebraska Tractor Test 13 file
Belt power (max)	26.24 hp 19.6 kW
Belt fuel use (max)	4.2 gal/hour 15.9 l/hour
Drawbar performance
Max power	16.26 hp 12.1 kW
Max pull	2852 lbs 1293 kg

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Minneapolis 12-25.

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours