The Caterpillar Twenty-Eight is a tractor with a rating of approximately 31 hp, positioning it at the lower end of its class. This model was manufactured from 1933 to 1935, featuring a 4-cylinder petrol liquid-cooled engine coupled with a tracked undercarriage and a 3-speed gearbox. The tractor has an operating weight of 3569 kg, and is designed for use on areas of up to 200 acres.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
31 hp
Weight
3569 kg
Catalogue coverage
Variants represented
2
Richest spec table
30 rows
Recorded power
31 hp
Recorded weight
3569 kg
Transmissions
3-speed gear
Production years
1933-1935
Verified variants
0
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Overview
ManufacturerCaterpillarReference
Agricultural Crawler tractorReference
Built in Peoria, Illinois, USAReference
Total built1171Reference
DrivecrawlerReference
Open operator station.Reference
Engine
Caterpillar 4.5L 4-cyl gasolineReference
Drawbar (claimed)22.7 kWReference
Belt (claimed)28.0 kWReference
CaterpillarReference
gasolineReference
4-cylinderReference
liquid-cooledReference
Displacement4.5 LReference
Bore/Stroke106 x 140 mmReference
Air cleaneroil bathReference
Rated RPM1100Reference
Transmission
3-speed gearReference
TypegearReference
Gears3 forward and 1 reverseReference
PTO & Hydraulics
Rear PTO Type540 (1.375)Reference
Dimensions
Weight3569 kgReference
TracksReference
Length294 cmReference
Width156 cmReference
Height153 cmReference
Capacities
Diameter29 cmReference
Width16 cmReference
RPM935Reference
Speed786.38 meters/minReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
