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International Harvester TD-18A

International Harvester TD-18A tractor
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The International Harvester TD-18A is an agricultural crawler tractor produced from 1949 to 1958 by International Harvester in Melrose Park, Illinois, USA. It features a 6-cylinder 11.3L diesel engine with an estimated 112.2 hp engine power. The tractor has a 6-speed gear transmission with 2 reverse gears, mechanical steering clutches, and mechanical contracting band brakes. It was built in two track gauges with shipping weights ranging from 22,830 to 23,630 pounds. A total of 22,016 units were built. The TD-18A is the successor to the TD-18 model.
International HarvesterTD-18Acrawler tractoragricultural tractor11.3L diesel engine6-speed transmissiontractor specifications
Power112 hp[B]
Founded1949 - 1958
ModelTD-18A

Technical Specifications

Detailed specifications and technical data for International Harvester TD-18A

Power

Belt (tested):97.83 hp (73.0 kW)
Belt (claimed):101 hp (75.3 kW)
Drawbar (tested):85.61 hp (63.8 kW)
Drawbar (claimed):87 hp (64.9 kW)

Engine

Type:diesel
Model:International Harvester D-691
Cooling:liquid-cooled vertical I-head
Starter:gasoline-start
Aux. fuel:1.33 gal (5.0 L)
Cylinders:6-cylinder
Fuel tank:60 gal (227.1 L)
Rated RPM:1350
Air cleaner:oil bath
Bore/Stroke:4.75x6.50 inches (121 x 165 mm)
Displacement:691.1 ci (11.3 L)
Oil capacity:26 qts (24.6 L)
Starter volts:12
Coolant capacity:104 qts (98.4 L)
Compression ratio:15.5:1

Dimensions

Width:95 inches (241 cm)
Height:106 inches (269 cm)
Length:166 inches (421 cm)
Shipping weight:22830 lbs (narrow gauge) (10355 kg), 23630 lbs (wide gauge) (10718 kg)

Mechanical

Drive:crawler
Brakes:Mechanical contracting band brakes
Steering:mechanical steering clutches
Operator station:Open operator station

Production

Type:Agricultural Crawler tractor
Built in:Melrose Park, Illinois, USA
Years made:1949 - 1958
Total built:22,016
Manufacturer:International Harvester

Transmission

Type:gear
Gears:6 forward and 2 reverse

Serial Numbers

1949:22536 (TDR)
1950:22837 (TDR)
1951:24668 (TDR)
1952:27245 (TDR)
1953:29201 (TDR)
1954:32089 (TDR)
1955:33650 (TD181)
1956:36101 (TD182)
1957:37882 (TD182)
1958:38805 (TD182)
Location:upper-left dash
Final 1955:33649 (TD181)
Final 1956:36100 (TD181)
Final 1958:38861 (TD182)

Related Models

International Harvester TD-18

Model:TD-18