International Harvester

International Harvester TD-9

The International Harvester TD-9 is an agricultural crawler tractor produced from 1939 to 1962 by International Harvester in Melrose Park, Illinois, USA. It features a 5.5L 4-cylinder diesel engine producing up to 51.5 hp, a 5-speed gear transmission, and crawler drive. The tractor was built in large numbers with 59,800 units produced. It has an open operator station, contracting band brakes, and a rear PTO type of 540 (1.375). The TD-9 is known for its robust construction and versatility in agricultural applications.

Power51 hp

Founded1939 - 1962

ModelTD-9

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Technical Specifications

Detailed specifications and technical data for International Harvester TD-9

Power

Engine	49.5 hp (36.9 kW)
Belt (tested)	46.69 hp (34.8 kW)
Drawbar (tested)	39.50 hp (29.5 kW)
Drawbar (claimed)	39 hp (early), 40.5 hp (late)

Engine

Type	International Harvester 5.5L 4-cyl diesel
Power	49.5 hp (early), 51.5 hp (late)
Idle RPM	500-1555
Aux. fuel	0.7 gal (2.6 L)
Fuel tank	31 gal (117.3 L)
Rated RPM	1400
Air cleaner	oil bath
Bore/Stroke	4.40x5.50 inches (112 x 140 mm)
Compression	15.7:1
Displacement	334.5 ci (5.5 L)
Firing order	1-3-4-2
Oil capacity	11 qts (10.4 L)
Operating RPM	900-1400
Starter volts	12
Coolant capacity	52 qts (49.2 L)

Variants

T-9	gasoline
TD-9	diesel

Mechanical

Drive	crawler
Brakes	Contracting band brakes
Operator station	Open operator station

Production

Type	Agricultural Crawler tractor
Built in	Melrose Park, Illinois, USA
Years made	1939 - 1962
Total built	59,800
Manufacturer	International Harvester

Transmission

Type	gear
Gears	5 forward and 1 reverse
Clutch	dry disc
Oil capacity	22 qts (20.8 L)

Dimensions & Tracks

Width	59 inches (149 cm)
Length	114 inches (289 cm)
Weight	9805 to 10800 pounds
Gauge wide	60 inches (152 cm)
Track width	13 inches (33 cm)
Gauge narrow	44 inches (111 cm)
Height (exhaust)	79 inches (200 cm)
Operating weight	10800 lbs (4898 kg)
Track area on ground	1649 in² (1.1 m²)
Alternate track width	16 inches (40 cm)
Track length on ground	63.4 inches (161 cm)
Shipping weight wide gauge	10180 lbs (4617 kg)
Shipping weight narrow gauge	9805 lbs (4447 kg)
Alternate track area on ground	2030 in² (1.3 m²)
Alternate track length on ground	63.4 inches (161 cm)