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Years in Production / 1934–1936
Caterpillar
Diesel Forty
Explore the specifications, hardware, and original references for the Caterpillar Diesel Forty.

62hp
Engine estimate · from belt
Tracks
Drive
1934–1936
Production years
Caterpillar
Manufacturer
Diesel Forty / 01
At a glance
Production
Agricultural Crawler tractor
Built in Peoria, Illinois, USA
- Manufacturer
- Caterpillar
Mechanical
Open operator station
- Drive
- crawler
Diesel Forty / 02
Under the hood
Engine Detail
Caterpillar D6600
diesel
3-cylinder
liquid-cooled
- Displacement
- 624 ci10.2 L
- Bore Stroke
- 5.75x8.00 inches146 x 203 mm
- Rated Rpm
- 1000
- Fuel Type
- diesel
- Cylinders
- 3
- Cooling
- liquid-cooled
Engine Options
Caterpillar 10.2L 3-cyl diesel
- Fuel Tank
- 45 gal170.3 L
Diesel Forty / 03
Gears & controls
Transmission
- Transmission Type
- gear
- Gears
- 4 forward and 1 reverse
Diesel Forty / 04
Size. Stance. Footprint.
Tires And Tracks
16-inch tracks
- Weight
- 15642 lbs7095 kg
Tires And Tracks
- Width
- 16 inches40 cm
Diesel Forty / 05
Tests (NTTL)
Nebraska Tractor Test 242Nebraska test report ↗
Diesel (1000 RPM) 4-speed crawlerAugust 19 - September 9, 1935
Drawbar performance
Gear 2 used for power test.
Gear 2 used for pull test.
- Id
- 242
- Belt Power Max
- 56.05 hp41.8 kW
- Belt Fuel Use Max
- 4.1 gal/hour15.5 l/hour
- Max Power
- 50.44 hp37.6 kW
- Max Pull
- 9750 lbs4422 kg
Nebraska Tractor Test 243Nebraska test report ↗
Diesel (850 RPM) 4-speed crawlerSeptember 10 - 12, 1935
Drawbar performance
Gear 1 used for power test.
Gear 1 used for pull test.
- Id
- 243
- Belt Power Max
- 48.60 hp36.2 kW
- Belt Fuel Use Max
- 3.4 gal/hour12.9 l/hour
- Max Power
- 42.82 hp31.9 kW
- Max Pull
- 9692 lbs4396 kg