Caterpillar Forty
The Caterpillar Forty is a tractor produced by Caterpillar. It is equipped with a 485.3 ci 8.0 L engine. The rated power output is 56.42 hp 42.1 kW. Transmission: 4 forward and 1 reverse. Drive type: crawler. Operating weight: 13625 lbs 6180 kg.
Engine Power
56.42 hp
42.1 kW
Drive & Traction
crawler
Fuel & Capacities
Gasoline
Transmission
4 forward and 1 reverse
Operating Weight
13625 lbs
6180 kg
Caterpillar Forty Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
 | 1934 - 1936
Agricultural Crawler tractor |
|---|---|
1934 - 1936 | |
Agricultural Crawler tractor | |
Production | |
|---|---|
Manufacturer | Caterpillar |
Agricultural Crawler tractor | |
Built in Peoria, Illinois, USA | |
Variants | |
|---|---|
Forty | gas engine |
Diesel Forty | diesel engine |
Caterpillar Forty Engine | |
|---|---|
Caterpillar 8.0L 4-cyl gasoline | |
Engine details ...  |
Caterpillar Forty Transmission | |
|---|---|
4-speed gear | |
Transmission details ...  |
Caterpillar Forty Power | |
|---|---|
Drawbar (tested) | 48.91 hp
36.5 kW |
Belt (tested) | 56.42 hp
42.1 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Drive | crawler |
Open operator station. | |
Dimensions & Tracks | |
|---|---|
Weight | 13625 lbs
6180 kg |
16-inch tracks | |
Full dimensions and tracks ...  | |
Engine
Engine Detail — 485.3 ci / 8.0 L Gasoline
Manufacturer | Caterpillar |
Fuel Type | Gasoline |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 485.3 ci
8.0 L |
Bore/Stroke | 5.125x6.50 inches
130 x 165 mm |
Rated RPM | 850 |
Transmission
Transmission — 4 forward and 1 reverse gear
Type | gear |
Gears | 4 forward and 1 reverse |
 | |
Dimensions
Caterpillar Forty Tracks | |
|---|---|
Width | 16 inches
40 cm |
Dimensions | |
|---|---|
Weight | 13625 lbs
6180 kg |
Gauge | 56 inches
142 cm |
Tests
Tractor Tests | |
|---|---|
NTTL 244: gasoline (850 RPM) 4-speed crawler | |
NTTL 245: gasoline (1000 RPM) 4-speed crawler |
Nebraska Tractor Test 244 | |
|---|---|
Gasoline (850 RPM) 4-speed crawler
September 16 - 20, 1935
Link: Nebraska Tractor Test 244 file | |
Belt power (max) | 48.57 hp
36.2 kW |
Belt fuel use (max) | 5.9 gal/hour
22.3 l/hour |
Drawbar performance | |
Max power | 41.78 hp
31.2 kW |
Gear 2 used for power test. | |
Max pull | 9692 lbs
4396 kg |
Gear 1 used for pull test. | |
Nebraska Tractor Test 245 | |
|---|---|
Gasoline (1000 RPM) 4-speed crawler
September 18 - 23, 1935
Link: Nebraska Tractor Test 245 file | |
Belt power (max) | 56.42 hp
42.1 kW |
Belt fuel use (max) | 6.9 gal/hour
26.1 l/hour |
Drawbar performance | |
Max power | 48.91 hp
36.5 kW |
Gear 2 used for power test. | |
Max pull | 9466 lbs
4293 kg |
Gear 1 used for pull test. | |
Related models
Caterpillar 10-Ton
- Power:
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- Production years:
- 1925 - 1925
Caterpillar Diesel Forty
- Power:
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- Production years:
- 1934 - 1936
Caterpillar Fifty
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- Production years:
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Caterpillar Diesel Thirty-Five
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- Production years:
- 1933 - 1934
Caterpillar Thirty-Five
- Power:
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- Production years:
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