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Years in Production / 1925–1938
Caterpillar
Thirty
Explore the specifications, hardware, and original references for the Caterpillar Thirty.
40hp
Engine estimate · from belt
Tracks
Drive
1925–1938
Production years
Caterpillar
Manufacturer
Thirty / 01
At a glance
Production
Agricultural Crawler tractor
The Caterpillar model Thirty is a continuation of the Best model Thirty, which had been in production since 1921
- Manufacturer
- Caterpillar
- Factories
- San Leandro, California, USA
- Factories
- Peoria, Illinois, USA
Mechanical
Open operator station.
- Drive
- crawler
Belt Pulley
- Diameter
- 12 inches30 cm
- Width
- 8.5 inches21 cm
- Rpm
- 840
Thirty / 02
Under the hood
Engine Detail
Caterpillar
gasoline
4-cylinder
liquid-cooled
- Displacement
- 461 ci7.6 L
- Bore Stroke
- 4.75x6.50 inches121 x 165 mm
- Fuel System
- Zenith K5A carburetor
- Air Cleaner
- oil bath
- Rated Rpm
- 1400
- Fuel Type
- gasoline
- Cylinders
- 4
- Cooling
- liquid-cooled
Engine Options
Caterpillar 7.6L 4-cyl gasoline
- Fuel Tank
- 37.5 gal141.9 L
- Aux Fuel
- 2.6 gal9.8 L
Thirty / 03
Gears & controls
Transmission (Option 1)
- Transmission Type
- gear
- Gears
- 3 forward and 1 reverse
Transmission (Option 2)
- Transmission Type
- gear
- Gears
- 5 forward and 1 reverse
- Clutch
- dry disc
Thirty / 04
Size. Stance. Footprint.
Tires And Tracks
- Width
- 13 inches33 cm
- Width
- 16 inches40 cm
- Width
- 18 inches45 cm
- Width
- 24 inches60 cm
- Width
- 30 inches76 cm
Thirty / 05
Tractor Photos
Thirty / 06
Tests (NTTL)
Nebraska Tractor Test 272
Distillate 5-speed crawlerOctober 13 - 24, 1936
Drawbar performance
Gear 2 used for power test.
Gear 1 used for pull test.
- Id
- 272
- Belt Power Max
- 36.37 hp27.1 kW
- Max Power
- 30.88 hp23.0 kW
- Max Pull
- 6120 lbs2776 kg