Tractor · 1931Unverified
Caterpillar Fifty
Caterpillar Fifty — Agricultural Crawler tractor · 64 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
64 hp
Max power
36.8 kW
Weight
8275 kg
Hover a source tag to verify
Overview
ManufacturerCaterpillarReference
Agricultural Crawler tractorReference
Built in Peoria, Illinois, USAReference
DrivecrawlerReference
Open operator station.Reference
Engine
Caterpillar 4-cyl gasolineReference
Caterpillar 11.4L 4-cyl dieselReference
Caterpillar 13.6L 4-cyl dieselReference
Drawbar (tested)48.0 kWReference
Belt (tested)53.5 kWReference
CaterpillarReference
gasolineReference
4-cylinderReference
liquid-cooledReference
dieselReference
Displacement11.4 LReference
Bore/Stroke133 x 203 mmReference
Rated RPM850Reference
Displacement13.6 LReference
Bore/Stroke146 x 203 mmReference
Rated RPM1000Reference
Belt power (max)41.9 kWReference
Max power36.8 kWReference
Belt power (max)45.7 kWReference
Max power39.2 kWReference
Belt power (max)45.5 kWReference
Max power39.5 kWReference
Belt power (max)53.5 kWReference
Max power48.0 kWReference
Transmission
4-speed gearReference
TypegearReference
Gears4 forward and 1 reverseReference
Dimensions
Weight8275 kgReference
15-inch tracksReference
Caterpillar Fifty Tracks
Width38 cmReference
Test results
NTTL 204: gasoline 4-speed crawlerReference
NTTL 214: 11.4L diesel 4-speed crawlerReference
NTTL 240: 13.6L diesel (850 rpm) 4-speed crawlerReference
NTTL 241: 13.6L diesel (1000 rpm) 4-speed crawlerReference
Gasoline 4-speed crawlerMay 18 - June 11, 1932Link: Nebraska Tractor Test 204 fileReference
Belt fuel use (max)25.4 l/hourReference
Drawbar performanceReference
Gear 1 used for power test.Reference
Max pull5470 kgReference
Gear 1 used for pull test.Reference
11.4L diesel 4-speed crawlerMay 17 - June 2, 1933Link: Nebraska Tractor Test 214 fileReference
Belt fuel use (max)17.4 l/hourReference
Max pull5790 kgReference
13.6L diesel (850 rpm) 4-speed crawlerAugust 19 - 29, 1935Link: Nebraska Tractor Test 240 fileReference
Belt fuel use (max)15.5 l/hourReference
Gear 2 used for power test.Reference
Max pull5946 kgReference
13.6L diesel (1000 rpm) 4-speed crawlerAugust 29 - September 16, 1935Link: Nebraska Tractor Test 241 fileReference
Belt fuel use (max)19.3 l/hourReference
Max pull6119 kgReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.