Caterpillar D8 Specs ( 1937-1965 )
Overview
The Caterpillar D8 is a heavy-duty agricultural crawler tractor manufactured in Peoria, Illinois, featuring a robust 20.4L 6-cylinder diesel engine. Known for its 36,520-pound operating weight and 20-inch tracks, this machine delivers a maximum drawbar pull of 26,208 lbs, making it a powerful solution for demanding farm environments between 1937 and 1965.
Ideal Applications
Heavy Drawbar Operations:
With a tested drawbar pull of up to 26,208 lbs and a 6-speed gear transmission, this crawler is built for high-torque applications that require maximum traction.
Stationary Belt Work:
Utilizing the Caterpillar D13000 engine, the D8 provides a maximum of 127.93 hp at the belt, making it highly effective for powering large stationary farm equipment.
Soft Soil Cultivation:
The 20-inch wide tracks and crawler drive system allow this 36,520-lb machine to operate in agricultural conditions where wheeled tractors might struggle with stability or flotation.
Production
| Description | Agricultural Crawler tractor / Built in Peoria, Illinois, USA |
|---|---|
| Manufacturer | Caterpillar |
Engine
| Engine type | Caterpillar 20.4L 6-cyl diesel |
|---|---|
| Fuel tank | 57 gal (215.7 L) |
| Bore/Stroke | 5.75x8.00 inches (146 x 203 mm) |
| Description | Caterpillar D13000 / diesel / 6-cylinder / liquid-cooled |
| Displacement | 1246 ci (20.4 L) |
| Power | 115 hp (85.8 kW) |
| Rated RPM | 850 |
| Belt (tested) | 127.93 hp (95.4 kW) |
| Drawbar (tested) | 110.06 hp (82.1 kW) |
Transmission
| Gears | 6 forward and 2 reverse |
|---|---|
| Transmission type | 6-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Drive | crawler |
Dimensions & Tires
| Gauge | 78 inches (198 cm) |
|---|---|
| Height | 84 inches (213 cm) |
| Length | 186 inches (472 cm) |
| Weight | 36520 lbs (16565 kg) |
| Width | 101 inches (256 cm) |
Caterpillar D8 Tracks
| Width | 20 inches (50 cm) |
|---|
D8 Serial Numbers
| 1937 | 1H1500 |
|---|---|
| 1938 | 1H2727 |
| 1939 | 1H3906 |
| 1940 | 1H5729 |
| 1941 | 1H7693 |
| Description | FAQ: How to read a serial number table. |
Dimensions & Tracks
| Description | 20-inch tracks |
|---|---|
| Weight | 36520 lbs (16565 kg) |
Nebraska Tractor Test 314
| Belt fuel use (max) | 7.0 gal/hour (26.5 l/hour) |
|---|---|
| Belt power (max) | 109.64 hp (81.8 kW) |
| Description | Diesel 6-speed crawlerNovember 28, 1939 - November 30, 1938Link: Nebraska Tractor Test 314 file / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
| Max power | 96.67 hp (72.1 kW) |
| Max pull | 26110 lbs (11843 kg) |
Nebraska Tractor Test 357
| Belt fuel use (max) | 8.6 gal/hour (32.6 l/hour) |
|---|---|
| Belt power (max) | 127.93 hp (95.4 kW) |
| Description | Diesel 6-speed crawlerOctober 11 - 16, 1940Link: Nebraska Tractor Test 357 file / Drawbar performance / Gear 2 used for power test. / Gear 1 used for pull test. |
| Max power | 110.06 hp (82.1 kW) |
| Max pull | 26208 lbs (11887 kg) |
Tractor Tests
| Description | NTTL 314: diesel 6-speed crawler / NTTL 357: diesel 6-speed crawler |
|---|