1935 - 1940
| 1935 - 1940 |
| Agricultural Crawler tractor |
Series:
| Series: | RD4 |
| D4 ↓ |
1938 - 1959
| 1938 - 1959 |
| Model year 1938-19471947-1959 |
| Agricultural Crawler tractor |
Production
| Production |
| Manufacturer: | Caterpillar
|
| Type: | Agricultural Crawler tractor
|
| Factory: | Peoria, Illinois, USA
|
Caterpillar D4 Power
| Caterpillar D4 Power |
| Drawbar (tested): | 35.06 hp
26.1 kW
|
| Belt (tested): | 39.82 hp
29.7 kW
|
| power test details ... |
Caterpillar D4 Engine
| Caterpillar D4 Engine |
| Caterpillar 5.1L 4-cyl diesel |
| Fuel tank: | 20 gal
75.7 L
|
| Engine details ... |
Mechanical
| Mechanical |
| Chassis: | crawler
|
| Steering: | manual clutches
|
| Cab: | Open operator station.
|
| Transmission: | 5-speed gear
|
| Transmission details ... |
Dimensions & Tracks
| Dimensions & Tracks |
| Wheelbase: | 61.125 inches
155 cm
|
| Weight: | 9970 to 10250 pounds
|
| 13-inch tracks |
| Full dimensions and tracks ... |
D4 Serial Numbers
| D4 Serial Numbers |
| 1936: | 4G1
|
| 1937: | 4G3663
|
| 1938: | 4G8858
|
| 1939: | 4G9912
|
| 1939: | 7J1
|
| 1940: | 7J1758
|
| 1941: | 7J4119
|
| 1942: | 7J7544
|
| 1943: | 7J2T1
|
| 1944: | 2T3306
|
| 1945: | 2T8224
|
| 1945: | 5T1
|
| 1946: | 5T3524
|
| 1947: | 5T6780
|
how to read serial numbers...
|
Links
| Links |
| Caterpillar D-4: A story on the use of a D-4 by VanNatta Forestry |
Production
| Production |
| Manufacturer: | Caterpillar
|
| Type: | Agricultural Crawler tractor
|
| Factory: | Peoria, Illinois, USA
|
Caterpillar RD4 Power
| Caterpillar RD4 Power |
| Drawbar (tested): | 35.06 hp
26.1 kW
|
| Belt (tested): | 39.82 hp
29.7 kW
|
| power test details ... |
1935 - 1940
| 1935 - 1940 |
| Agricultural Crawler tractor |
Series:
Nebraska Tractor Test 273
| Nebraska Tractor Test 273 |
| |
Nebraska Tractor Test 273
| Nebraska Tractor Test 273 |
Diesel 5-speed crawler
October 14 - 28, 1936
Link: Nebraska Tractor Test 273 file |
| Belt power (max): | 39.82 hp
29.7 kW
|
| Belt fuel use (max): | 2.9 gal/hour
11.0 l/hour
|
| Drawbar performance |
| Max power: | 35.06 hp
26.1 kW
|
| Gear 2 used for power test. |
| Max pull: | 7852 lbs
3561 kg
|
| Gear 1 used for pull test. |
Caterpillar RD4 Engine
| Caterpillar RD4 Engine |
| Caterpillar 5.1L 4-cyl diesel |
| Engine details ... |
1935 - 1940
| 1935 - 1940 |
| Agricultural Crawler tractor |
Series:
Engine Detail
| Engine Detail |
| Caterpillar |
| diesel |
| 4-cylinder |
| liquid-cooled |
| Displacement: | 312.1 ci
5.1 L
|
| Bore/Stroke: | 4.25x5.50 inches
108 x 140 mm
|
| Rated RPM: | 1400
|
Mechanical
| Mechanical |
| Chassis: | crawler
|
| Cab: | Open operator station.
|
| Transmission: | 5-speed gear
|
| Transmission details ... |
1935 - 1940
| 1935 - 1940 |
| Agricultural Crawler tractor |
Series:
Transmission
| Transmission |
| Type: | gear
|
| Gears: | 5 forward and 1 reverse
|
| Clutch: | dry disc
|
Speeds
Dimensions & Tracks
| Dimensions & Tracks |
| 44-inch tracks |
| Full dimensions and tracks ... |
1935 - 1940
| 1935 - 1940 |
| Agricultural Crawler tractor |
Series:
Caterpillar RD4 Tracks
| Caterpillar RD4 Tracks |
| Size: | 44-inch tracks
|
| | 60-inch tracks
|
Dimensions
RD4 Serial Numbers
| RD4 Serial Numbers |
| 1936: | 4G1
|
| 1937: | 4G3663
|
| 1938: | 4G8858
|
| 1939: | 4G9912
|
how to read serial numbers...
|
