| Manufacturer |
Caterpillar |
| Price |
- |
| Model |
D8 |
| Equipment Type |
Agricultural Crawler Tractors |
| Factory |
Peoria, Illinois, USA |
NEBRASKA TRACTOR TEST 314 2
| Description |
Diesel 6-speed crawler/November 28, 1939 - November 30, 1938/Link: Nebraska Tractor Test 314 file/Drawbar performance/Gear 2 used for power test./Gear 1 used for pull test. |
| Belt power (max) |
109.64 hp/81.8 kW |
| Belt fuel use (max) |
7.0 gal/hour/26.5 l/hour |
| Max power |
96.67 hp/72.1 kW |
| Max pull |
26110 lbs/11843 kg |
NEBRASKA TRACTOR TEST 357 2
| Description |
Diesel 6-speed crawler/October 11 - 16, 1940/Link: Nebraska Tractor Test 357 file/Drawbar performance/Gear 2 used for power test./Gear 1 used for pull test. |
| Belt power (max) |
127.93 hp/95.4 kW |
| Belt fuel use (max) |
8.6 gal/hour/32.6 l/hour |
| Max power |
110.06 hp/82.1 kW |
| Max pull |
26208 lbs/11887 kg |
CATERPILLAR D8 POWER
| Engine |
115 hp/85.8 kW |
| Drawbar (tested) |
110.06 hp/82.1 kW |
| Belt (tested) |
127.93 hp/95.4 kW |
ENGINE DETAIL
The Caterpillar D8 tractor is powered by a D13000 6-cylinder liquid-cooled diesel engine with a substantial displacement of 20.4 L, providing robust performance for heavy-duty applications. With a bore/stroke ratio of 5.75x8.00 inches, it is designed for torque rather than high RPM, making it suitable for tough terrain and demanding tasks at a rated output of 115 hp at a low RPM of 850. However, its weight and power characteristics may pose challenges in mobility on softer soils, necessitating careful consideration of ground conditions during operation.
| Description |
Caterpillar D13000/diesel/6-cylinder/liquid-cooled |
| Displacement |
1246 ci/20.4 L |
| Bore/Stroke |
5.75x8.00 inches/146 x 203 mm |
| Power |
115 hp/85.8 kW |
| Rated RPM |
850 |
CATERPILLAR D8 ENGINE
The Caterpillar D8 tractor features a robust 20.4L 6-cylinder diesel engine, providing substantial power for heavy-duty applications such as land clearing and earthmoving. With a fuel tank capacity of 57 gallons (215.7 liters), it offers extended operational range but may require careful fuel management in remote job sites to prevent downtime. Consideration of its weight and size is crucial, as it may limit access to tighter spaces in certain terrains.
| Description |
Caterpillar 20.4L 6-cyl diesel |
| Fuel tank |
57 gal/215.7 L |
TRANSMISSION
The Caterpillar D8 tractor features a power shift transmission with 6 forward and 2 reverse gears, enabling improved control and efficiency on varied terrains. This gearing configuration allows for enhanced maneuverability during operations such as land clearing or heavy lifting. However, the operator must be skilled in gear management to mitigate challenges like engine strain during abrupt gear changes.
| Type |
gear |
| Gears |
6 forward and 2 reverse |
MECHANICAL
The Caterpillar D8 tractor features a crawler chassis, enhancing its stability and traction on uneven terrain, making it ideal for construction and heavy-duty earthmoving tasks. The open operator station allows for excellent visibility and accessibility but may expose the operator to harsh weather conditions. The 6-speed transmission offers flexibility in power management, enabling efficient operation across various applications, though it may require more skill to navigate compared to automatic systems.
| Chassis |
crawler |
| Cab |
Open operator station. |
| Transmission |
6-speed gear |
CATERPILLAR D8 TRACKS
DIMENSIONS
| Length |
186 inches/472 cm |
| Width |
101 inches/256 cm |
| Height |
84 inches/213 cm |
| Weight |
36520 lbs/16565 kg |
| Gauge |
78 inches/198 cm |
DIMENSIONS & TRACKS
| Weight |
36520 lbs/16565 kg |
| Description |
20-inch tracks |
D8 SERIAL NUMBERS
| 1937 |
1H1500 |
| 1938 |
1H2727 |
| 1939 |
1H3906 |
| 1940 |
1H5729 |
| 1941 |
1H7693 |
