Caterpillar Twenty

The Caterpillar Twenty is a tractor produced by Caterpillar. It is equipped with a 277 ci 4.5 L engine. Transmission: 3 forward and 1 reverse. Drive type: crawler. Operating weight: 7700 lbs 3492 kg.

Overview

	1927 - 1931 Agricultural Crawler tractor

Production
Manufacturer	Caterpillar
Agricultural Crawler tractor
Factories	San Leandro, California, USA
	Peoria, Illinois, USA
In 1931, the Caterpillar was renamed the Twenty-Five due to increased engine output.

Caterpillar Twenty Engine
Caterpillar 4.5L 4-cyl gasoline
Engine details ...

Caterpillar Twenty Transmission
3-speed gear
Transmission details ...

Caterpillar Twenty Power
Drawbar (tested)	26.32 hp 19.6 kW
Belt (tested)	29.49 hp 22.0 kW
Performance test details ...

Mechanical
Drive	crawler
Open operator station.

Dimensions & Tracks
Weight	7700 lbs 3492 kg
Tracks
Full dimensions and tracks ...

Engine

Engine Detail — 277 ci / 4.5 L Gasoline

Manufacturer	Caterpillar
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled
Displacement	277 ci 4.5 L
Bore/Stroke	4.00x5.50 inches 102 x 140 mm
Air cleaner	oil bath
Rated RPM	1100

Transmission

Transmission — 3 forward and 1 reverse gear

Type	gear
Gears	3 forward and 1 reverse

Dimensions

Caterpillar Twenty Tracks

Dimensions
Operating weight	7700 lbs 3492 kg

Tests

Nebraska Tractor Test 150
Gasoline 3-speed crawler May 17 - 28, 1928 Link: Nebraska Tractor Test 150 file
Belt power (max)	29.49 hp 22.0 kW
Belt fuel use (max)	3.3 gal/hour 12.5 l/hour
Drawbar performance
Max power	26.32 hp 19.6 kW
Gear 1 used for power test.
Max pull	5721 lbs 2595 kg
Gear 1 used for pull test.

Photos

Caterpillar Twenty