Skip to content
An independent tractor referenceSpecifications. Sources. Side by side.
TractorStack.
Search
Find your tractor.
Menu ☰
Years in Production / 1935–1936
Caterpillar
RD8
Explore the specifications, hardware, and original references for the Caterpillar RD8.
No photo
114hp
Engine estimate · from belt
Tracks
Drive
1935–1936
Production years
Caterpillar
Manufacturer
RD8 / 01
At a glance
Production
Agricultural Crawler tractor
Built in Peoria, Illinois, USA
- Manufacturer
- Caterpillar
Mechanical
Open operator station.
- Drive
- crawler
RD8 / 02
Under the hood
Engine Detail
Caterpillar D13000
diesel
6-cylinder
liquid-cooled
- Displacement
- 1246 ci20.4 L
- Bore Stroke
- 5.75x8.00 inches146 x 203 mm
- Rated Rpm
- 1000
- Fuel Type
- diesel
- Cylinders
- 6
- Cooling
- liquid-cooled
RD8 / 03
Gears & controls
Transmission
- Transmission Type
- gear
- Gears
- 6 forward and 2 reverse
- Clutch
- dry disc
RD8 / 04
Size. Stance. Footprint.
Tires And Tracks
20-inch tracks
- Weight
- 33500 lbs15195 kg
Tires And Tracks
- Width
- 20 inches50 cm
RD8 / 05
Tests (NTTL)
Nebraska Tractor Test 256
Diesel 6-speed crawlerMay 7 - 19, 1936
Drawbar performance
Gear 1 used for power test.
Gear 1 used for pull test.
- Id
- 256
- Belt Power Max
- 103.21 hp77.0 kW
- Belt Fuel Use Max
- 7.3 gal/hour27.6 l/hour
- Max Power
- 91.75 hp68.4 kW
- Max Pull
- 20485 lbs9291 kg
Nebraska Tractor Test 257
Diesel 6-speed crawlerMay 19 - 25, 1936
Drawbar performance
Gear 1 used for power test.
Gear 1 used for pull test.
- Id
- 257
- Belt Power Max
- 118.29 hp88.2 kW
- Belt Fuel Use Max
- 8.6 gal/hour32.6 l/hour
- Max Power
- 103.95 hp77.5 kW
- Max Pull
- 19795 lbs8979 kg