International Harvester T-6

The International Harvester T-6 is a tractor produced by International Harvester. It is equipped with a 247.7 ci 4.1 L engine. The rated power output is 34.54 hp 25.8 kW. Transmission: 5 forward and 1 reverse. Drive type: crawler. Operating weight: 6930 to 7500 pounds.

Overview

	1940 - 1969 Model year 1940-19561956-19601959-1969 Agricultural Crawler tractor
1940 - 1969
Model year 1940-19561956-19601959-1969
Agricultural Crawler tractor

Production
Manufacturer	International Harvester
Agricultural Crawler tractor
Total built	38,450

Variants
T-6	gasoline engine
TD-6	diesel engine

International Harvester T-6 Engine
International Harvester 4.1L 4-cyl gasoline
Fuel tank	20 gal 75.7 L
Engine details ...

International Harvester T-6 Transmission
5-speed gear
Transmission details ...

International Harvester T-6 Power
Plows	4
Drawbar (tested)	30.85 hp 23.0 kW
Belt (tested)	36.96 hp 27.6 kW
Performance test details ...

Mechanical
Drive	crawler
Open operator station.

Dimensions & Tracks
Weight	6930 to 7500 pounds
12-inch tracks
Full dimensions and tracks ...

References
Crawler Tractors for Agriculture - Confidential Sales Manual published in 1951, by International Harvester
General Line Catalog published in 1949, by International Harvester

Engine

Engine Detail — 247.7 ci / 4.1 L Gasoline

Manufacturer	International Harvester C-248
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled vertical I-head
Displacement	247.7 ci 4.1 L
Bore/Stroke	3.875x5.25 inches 98 x 133 mm
Rated RPM	1450
Firing order	1-3-4-2
Oil capacity	9 qts 8.5 L
Coolant capacity	38 qts 36.0 L

Transmission

Transmission — 5 forward and 1 reverse gear

Type	gear
Gears	5 forward and 1 reverse
Oil capacity	16 qts 15.1 L

Dimensions

International Harvester T-6 Tracks
Width	12 inches 30 cm

Dimensions
Length	104 inches 264 cm
Width	63 inches 160 cm
Height	58 inches 147 cm

International Harvester T-6 Weight
Shipping	6930 lbs (narrow-gauge) 3143 kg
	7130 lbs (wide-gauge) 3234 kg
Operating	7500 lbs 3402 kg

Tests

Tractor Tests
NTTL 346: gasoline 5-speed crawler
NTTL 347: distillate 5-speed crawler

Nebraska Tractor Test 346
Gasoline 5-speed crawler May 14 - June 6, 1940
Belt power (max)	36.96 hp 27.6 kW
Belt fuel use (max)	3.0 gal/hour 11.4 l/hour
Drawbar performance
Max power	30.85 hp 23.0 kW
Gear 2 used for power test.
Max pull	7,652 lbs 3470 kg
Gear 1 used for pull test.

Nebraska Tractor Test 347
Distillate 5-speed crawler May 22 - June 10, 1940
Belt power (max)	34.54 hp 25.8 kW
Belt fuel use (max)	2.8 gal/hour 10.6 l/hour
Drawbar performance
Max power	29.53 hp 22.0 kW
Gear 2 used for power test.
Max pull	7,434 lbs 3372 kg
Gear 1 used for pull test.

Photos

International T-6, left side.

International T-6, right side.