International Harvester T-6 Specs ( 1940-1969 )
Overview
The International Harvester T-6 is an agricultural crawler tractor produced from 1940 to 1969 with a total of 38,450 units manufactured. It is equipped with an International Harvester 4.1L 4-cylinder gasoline engine and a 5-speed gear transmission. Nebraska Test 346 recorded a maximum drawbar pull of 7,652 pounds and a maximum belt power of 36.96 hp for the gasoline configuration.
Ideal Applications
Tested Drawbar and Pull Capacity:
In Nebraska Test 346, the gasoline-powered unit achieved a maximum drawbar pull of 7,652 pounds in first gear and reached 30.85 horsepower at the drawbar.
Belt Pulley and Engine Output:
The C-248 4-cylinder engine is rated at 1450 RPM and produced a maximum of 36.96 hp on the belt with a fuel consumption rate of 3.0 gallons per hour.
Transmission and Track Configuration:
This crawler features a 5-speed forward and 1-speed reverse transmission coupled with 12-inch wide tracks and an operating weight of 7,500 pounds.
Production
| Description | Agricultural Crawler tractor |
|---|---|
| Manufacturer | International Harvester |
| Total built | 38,450 |
Engine
| Engine type | International Harvester 4.1L 4-cyl gasoline |
|---|---|
| Fuel tank | 20 gal (75.7 L) |
| Bore/Stroke | 3.875x5.25 inches (98 x 133 mm) |
| Coolant capacity | 38 qts (36.0 L) |
| Description | International Harvester C-248 / gasoline / 4-cylinder / liquid-cooled vertical I-head |
| Displacement | 247.7 ci (4.1 L) |
| Firing order | 1-3-4-2 |
| Oil capacity | 9 qts (8.5 L) |
| Rated RPM | 1450 |
| Belt (tested) | 36.96 hp (27.6 kW) |
| Drawbar (tested) | 30.85 hp (23.0 kW) |
| Plows | 4 |
Transmission
| Gears | 5 forward and 1 reverse |
|---|---|
| Oil capacity | 16 qts (15.1 L) |
| Transmission type | 5-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive | crawler |
Dimensions & Tires
| Height | 58 inches (147 cm) |
|---|---|
| Length | 104 inches (264 cm) |
| Width | 63 inches (160 cm) |
Dimensions & Tracks
| Description | 12-inch tracks |
|---|---|
| Weight | 6930 to 7500 pounds |
International Harvester T-6 Tracks
| Width | 12 inches (30 cm) |
|---|
International Harvester T-6 Weight
| Operating | 7500 lbs (3402 kg) |
|---|---|
| Shipping | 6930 lbs (narrow-gauge) (3143 kg) |
Nebraska Tractor Test 346
| Belt fuel use (max) | 3.0 gal/hour (11.4 l/hour) |
|---|---|
| Belt power (max) | 36.96 hp (27.6 kW) |
| Description | Gasoline 5-speed crawlerMay 14 - June 6, 1940 / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
| Max power | 30.85 hp (23.0 kW) |
| Max pull | 7,652 lbs (3470 kg) |
Nebraska Tractor Test 347
| Belt fuel use (max) | 2.8 gal/hour (10.6 l/hour) |
|---|---|
| Belt power (max) | 34.54 hp (25.8 kW) |
| Description | Distillate 5-speed crawlerMay 22 - June 10, 1940 / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
| Max power | 29.53 hp (22.0 kW) |
| Max pull | 7,434 lbs (3372 kg) |
References
| Description | Crawler Tractors for Agriculture - Confidential Sales Manual published in 1951, by International Harvester / General Line Catalog published in 1949, by International Harvester |
|---|
T-6 Serial Numbers
| 1940 | TBK501 |
|---|---|
| 1941 | TBK4435 |
| 1942 | TBK8191 |
| 1943 | TBK9297 |
| 1944 | TBK9581 |
| 1945 | TBK10828 |
| 1946 | TBK12056 |
| 1947 | TBK14516 |
| 1948 | TBK17349 |
| 1949 | TBK21146 |
| 1950 | TBK24862 |
| 1951 | TBK27536 |
| 1952 | TBK31056 |
| 1953 | TBK33157 |
| 1954 | TBK35746 |
| 1955 | TBK37470 |
| 1956 | TBK38706 |
| Description | FAQ: How to read a serial number table. |
| Location: | lower-left dash |
Tractor Tests
| Description | NTTL 346: gasoline 5-speed crawler / NTTL 347: distillate 5-speed crawler |
|---|
Variants
| T-6 | gasoline engine |
|---|---|
| TD-6 | diesel engine |