Caterpillar R3 tractor specifications

1934 - 1935

1934 - 1935 Agricultural Crawler tractor

Production

Production Manufacturer:Caterpillar
Type:Agricultural Crawler tractor
Factory:Peoria, Illinois, USA
Total built:60
The R3 was a special-order machine for the US Government, based on the Twenty-Eight.

Caterpillar R3 Power

Caterpillar R3 Power Drawbar (tested):34.44 hp
25.7 kW
Belt (tested):41.99 hp
31.3 kW
power test details ...

1934 - 1935

Agricultural Crawler tractor

Nebraska Tractor Test 227

Nebraska Tractor Test 227
Gasoline 3-speed crawler September 26 - October 15, 1934 Link: Nebraska Tractor Test 227 file
Belt power (max):	41.99 hp 31.3 kW
Belt fuel use (max):	4.9 gal/hour 18.5 l/hour
Drawbar performance
Max power:	34.44 hp 25.7 kW
Gear 2 used for power test.
Max pull:	7,622 lbs 3457 kg
Gear 1 used for pull test.

Caterpillar R3 Engine

Caterpillar R3 Engine Caterpillar 5.7L 4-cyl gasoline Engine details ...

1934 - 1935

Agricultural Crawler tractor

Engine Detail

Engine Detail
Caterpillar
gasoline
4-cylinder
liquid-cooled
Displacement:	350 ci 5.7 L
Bore/Stroke:	4.50x5.50 inches 114 x 140 mm
Fuel system:	Ensign carburetor
Air cleaner:	oil bath
Rated RPM:	1100