Minneapolis 39-57

The Minneapolis 39-57 is a tractor produced by Minneapolis. It is equipped with a 617.7 ci 10.1 L engine. The rated power output is 64.55 hp 48.1 kW. Transmission: 2 forward and 1 reverse. Operating weight: 9695 lbs 4397 kg.

Overview

	1928 - 1929 Standard-tread tractor
1928 - 1929
Standard-tread tractor

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

Minneapolis 39-57 Engine
Stearns 10.1L 4-cyl gasoline
Engine details ...

Minneapolis 39-57 Transmission
2-speed gear
Transmission details ...

Minneapolis 39-57 Power
Drawbar (claimed)	39 hp 29.1 kW
Belt (claimed)	57 hp 42.5 kW
Drawbar (tested)	47.77 hp 35.6 kW
Belt (tested)	64.55 hp 48.1 kW
Performance test details ...

Mechanical
Two-wheel drive
Manual steering
Open operator station.

Dimensions & Tires
Weight	9695 lbs 4397 kg
Rear tire	58x19.5
Full dimensions and tires ...

Belt Pulley
Diameter	20 inches 50 cm
Width	8.5 inches 21 cm
RPM	620

Engine

Engine Detail — 617.7 ci / 10.1 L Gasoline

Manufacturer	Stearns
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled
Displacement	617.7 ci 10.1 L
Bore/Stroke	5.50x6.50 inches 140 x 165 mm
Rated RPM	1000
Starter type	hand crank

Transmission

Transmission — 2 forward and 1 reverse gear

Type	gear
Gears	2 forward and 1 reverse

Dimensions

Minneapolis 39-57 Tires
Ag rear	58x19.5 (steel)

Dimensions
Weight	9695 lbs 4397 kg

Tests

Nebraska Tractor Test 163
June 5 - 14, 1929 Link: Nebraska Tractor Test 163 file
Belt power (max)	64.55 hp 48.1 kW
Belt fuel use (max)	6.4 gal/hour 24.2 l/hour
Drawbar performance
Max power	47.77 hp 35.6 kW
Max pull	5950 lbs 2698 kg

Photos

Minneapolis 39-57

Minneapolis 39-57

Minneapolis 39-57

Minneapolis 39-57

Minneapolis 39-57

Minneapolis 39-57