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Caterpillar Twenty-Eight

Caterpillar Twenty-Eight tractor
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The Caterpillar Twenty-Eight is an agricultural crawler tractor produced from 1933 to 1935 by Caterpillar in Peoria, Illinois, USA. It features a Caterpillar 4.5L 4-cylinder liquid-cooled gasoline engine with an estimated 41.7 hp. The tractor has a 3-speed gear transmission with 3 forward and 1 reverse gears, and a crawler drive. It has an open operator station and a rear PTO type of 540 (1.375). The tractor weighs 7870 lbs (3569 kg) and measures 116.1 inches in length, 61.5 inches in width, and 60.6 inches in height. The belt pulley diameter is 11.75 inches with a width of 6.5 inches, running at 935 RPM and a speed of 2580 ft/min. A total of 1171 units were built. The Twenty-Eight succeeded the Caterpillar Twenty-Five model.
Caterpillar Twenty-Eighttractorcrawler tractoragricultural tractorCaterpillar tractor4.5L engine3-speed transmissiontractor specifications
Power41 hp[B]
Founded1933 - 1935
ModelTwenty-Eight

Technical Specifications

Detailed specifications and technical data for Caterpillar Twenty-Eight

Power

Belt (claimed):37.5 hp / 28.0 kW
Drawbar (claimed):30.5 hp / 22.7 kW

Engine

Type:Caterpillar 4.5L 4-cyl gasoline
Cooling:liquid-cooled
Cylinders:4-cylinder
Rated RPM:1100
Air cleaner:oil bath
Bore/Stroke:4.1875 x 5.50 inches / 106 x 140 mm
Displacement:277 ci / 4.5 L

Overview

Type:Agricultural Crawler tractor
Built in:Peoria, Illinois, USA
Total built:1171
Production years:1933 - 1935
Estimated engine power:41.7 hp

Dimensions

Width:61.5 inches / 156 cm
Height:60.6 inches / 153 cm
Length:116.1 inches / 294 cm
Weight:7870 lbs / 3569 kg

Mechanical

Drive:crawler
Operator station:Open operator station

Belt Pulley

RPM:935
Speed:2580 ft/min / 786.38 meters/min
Width:6.5 inches / 16 cm
Diameter:11.75 inches / 29 cm

Transmission

Type:gear
Gears:3 forward and 1 reverse

Power Take-off (PTO)

Rear PTO Type:540 (1.375)

Related Models

Caterpillar Twenty-Five

Model:Twenty-Five