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Years in Production / 1949–1958
International Harvester
TD-18A
Explore the specifications, hardware, and original references for the International Harvester TD-18A.

112hp
Engine estimate · from belt
Tracks
Drive
1949–1958
Production years
International Harvester
Manufacturer
TD-18A / 01
At a glance
Overview
1949 - 1958
Model year 1949-19551955-19561956-1958
Agricultural Crawler tractor
Production
Agricultural Crawler tractor
Built in Melrose Park, Illinois, USA
- Manufacturer
- International Harvester
- Total Built
- 22,016
Mechanical
Mechanical contracting band brakes
Open operator station.
- Drive
- crawler
- Steering
- mechanical steering clutches
TD-18A / 02
Under the hood
Engine Detail
International Harvester D-691
diesel
6-cylinder
liquid-cooled vertical I-head
- Displacement
- 691.1 ci11.3 L
- Bore Stroke
- 4.75x6.50 inches121 x 165 mm
- Air Cleaner
- oil bath
- Compression Ratio
- 15.5:1
- Rated Rpm
- 1350
- Starter
- gasoline-start
- Starter Volts
- 12
- Oil Capacity
- 26 qts24.6 L
- Coolant Capacity
- 104 qts98.4 L
- Fuel Type
- diesel
- Cylinders
- 6
- Cooling
- liquid-cooled vertical I-head
Engine Options
International Harvester 11.3L 6-cyl diesel
- Fuel Tank
- 60 gal227.1 L
- Aux Fuel
- 1.33 gal5.0 L
TD-18A / 03
Gears & controls
Transmission
- Transmission Type
- gear
- Gears
- 6 forward and 2 reverse
International Harvester Td18a Transmission
6-speed gear
TD-18A / 04
Size. Stance. Footprint.
Tires And Tracks
Tracks
- Weight
- 22830 to 23630 pounds
See it in action
Videos
Watch International Harvester TD-18A videos from their original YouTube creators.
TD-18A / 06
Tests (NTTL)
Nebraska Tractor Test 446
Diesel 6-speed crawlerJune 27 - July 18, 1950
Drawbar performance
Gear 2 used for power test.
Gear 1 used for pull test.
- Id
- 446
- Belt Power Max
- 97.83 hp73.0 kW
- Belt Fuel Use Max
- 6.7 gal/hour25.4 l/hour
- Max Power
- 85.61 hp63.8 kW
- Max Pull
- 20,234 lbs9178 kg