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Years in Production / 1934–1935
Caterpillar
R3
Explore the specifications, hardware, and original references for the Caterpillar R3.
No photo
46hp
Engine estimate · from belt
Tracks
Drive
1934–1935
Production years
Caterpillar
Manufacturer
R3 / 01
At a glance
Production
Agricultural Crawler tractor
Built in Peoria, Illinois, USA
The R3 was a special-order machine for the US Government, based on the Twenty-Eight.
- Manufacturer
- Caterpillar
- Total Built
- 60
Mechanical
Open operator station.
- Drive
- crawler
R3 / 02
Under the hood
Engine Detail
Caterpillar
gasoline
4-cylinder
liquid-cooled
- Displacement
- 350 ci5.7 L
- Bore Stroke
- 4.50x5.50 inches114 x 140 mm
- Fuel System
- Ensign carburetor
- Air Cleaner
- oil bath
- Rated Rpm
- 1100
- Fuel Type
- gasoline
- Cylinders
- 4
- Cooling
- liquid-cooled
R3 / 03
Gears & controls
Transmission
- Transmission Type
- gear
- Gears
- 3 forward and 1 reverse
- Clutch
- dry disc
R3 / 04
Tests (NTTL)
Nebraska Tractor Test 227
Gasoline 3-speed crawlerSeptember 26 - October 15, 1934
Drawbar performance
Gear 2 used for power test.
Gear 1 used for pull test.
- Id
- 227
- Belt Power Max
- 41.99 hp31.3 kW
- Belt Fuel Use Max
- 4.9 gal/hour18.5 l/hour
- Max Power
- 34.44 hp25.7 kW
- Max Pull
- 7,622 lbs3457 kg