Tractor · 1925Unverified
Caterpillar Thirty
Caterpillar Thirty — Agricultural Crawler tractor · 31 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
31 hp
Max power
23.0 kW
Hover a source tag to verify
Overview
ManufacturerCaterpillarReference
Agricultural Crawler tractorReference
FactoriesSan Leandro, California, USAReference
FactoriesPeoria, Illinois, USAReference
The Caterpillar model Thirty is a continuation of the Best model Thirty, which had been in production since 1921Reference
DrivecrawlerReference
Open operator station.Reference
Engine
Caterpillar 7.6L 4-cyl gasolineReference
Fuel tank141.9 LReference
Aux. fuel9.8 LReference
Drawbar (tested)23.0 kWReference
Belt (tested)27.1 kWReference
CaterpillarReference
gasolineReference
4-cylinderReference
liquid-cooledReference
Displacement7.6 LReference
Bore/Stroke121 x 165 mmReference
Fuel systemZenith K5A carburetorReference
Air cleaneroil bathReference
Rated RPM1400Reference
Belt power (max)27.1 kWReference
Max power23.0 kWReference
Transmission
3-speed gearReference
5-speed gearReference
TypegearReference
Gears3 forward and 1 reverseReference
Gears5 forward and 1 reverseReference
Clutchdry discReference
Dimensions
13-inch tracksReference
Gauge111 cmReference
Gauge154 cmReference
Capacities
Diameter30 cmReference
Width21 cmReference
RPM840Reference
Caterpillar Thirty Tracks
Width33 cmReference
Width40 cmReference
Width45 cmReference
Width60 cmReference
Width76 cmReference
Test results
Distillate 5-speed crawlerOctober 13 - 24, 1936Link: Nebraska Tractor Test 272 fileReference
Drawbar performanceReference
Gear 2 used for power test.Reference
Max pull2776 kgReference
Gear 1 used for pull test.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.