Caterpillar RD8
The Caterpillar RD8 is a tractor produced by Caterpillar. It is equipped with a 1246 ci 20.4 L engine. The rated power output is 118.29 hp 88.2 kW. Transmission: 6 forward and 2 reverse. Drive type: crawler. Operating weight: 33500 lbs 15195 kg.
Engine Power
118.29 hp
88.2 kW
Drive & Traction
crawler
Fuel & Capacities
Diesel
Transmission
6 forward and 2 reverse
Operating Weight
33500 lbs
15195 kg
Caterpillar RD8 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
 | 1935 - 1936
Agricultural Crawler tractor |
|---|---|
1935 - 1936 | |
Agricultural Crawler tractor | |
Production | |
|---|---|
Manufacturer | Caterpillar |
Agricultural Crawler tractor | |
Built in Peoria, Illinois, USA | |
Caterpillar RD8 Engine | |
|---|---|
Caterpillar 20.4L 6-cyl diesel | |
Engine details ...  |
Caterpillar RD8 Transmission | |
|---|---|
6-speed gear | |
Transmission details ...  |
Caterpillar RD8 Power | |
|---|---|
Drawbar (tested) | 103.95 hp
77.5 kW |
Belt (tested) | 118.29 hp
88.2 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Drive | crawler |
Open operator station. | |
Dimensions & Tracks | |
|---|---|
Weight | 33500 lbs
15195 kg |
20-inch tracks | |
Full dimensions and tracks ...  | |
Engine
Engine Detail — 1246 ci / 20.4 L Diesel
Manufacturer | Caterpillar D13000 |
Fuel Type | Diesel |
Configuration | 6-cylinder, liquid-cooled |
Displacement | 1246 ci
20.4 L |
Bore/Stroke | 5.75x8.00 inches
146 x 203 mm |
Rated RPM | 1000 |
Transmission
Transmission — 6 forward and 2 reverse gear
Type | gear |
Gears | 6 forward and 2 reverse |
Clutch | dry disc |
 | |
Dimensions
Caterpillar RD8 Tracks | |
|---|---|
Width | 20 inches
50 cm |
Dimensions | |
|---|---|
Weight | 33500 lbs
15195 kg |
Gauge | 78 inches
198 cm |
Tests
Tractor Tests | |
|---|---|
NTTL 256: diesel 6-speed crawler | |
NTTL 257: diesel 6-speed crawler |
Nebraska Tractor Test 256 | |
|---|---|
Diesel 6-speed crawler
May 7 - 19, 1936
Link: Nebraska Tractor Test 256 file | |
Belt power (max) | 103.21 hp
77.0 kW |
Belt fuel use (max) | 7.3 gal/hour
27.6 l/hour |
Drawbar performance | |
Max power | 91.75 hp
68.4 kW |
Gear 1 used for power test. | |
Max pull | 20485 lbs
9291 kg |
Gear 1 used for pull test. | |
Nebraska Tractor Test 257 | |
|---|---|
Diesel 6-speed crawler
May 19 - 25, 1936
Link: Nebraska Tractor Test 257 file | |
Belt power (max) | 118.29 hp
88.2 kW |
Belt fuel use (max) | 8.6 gal/hour
32.6 l/hour |
Drawbar performance | |
Max power | 103.95 hp
77.5 kW |
Gear 1 used for power test. | |
Max pull | 19795 lbs
8979 kg |
Gear 1 used for pull test. | |
Photos
Caterpillar RD8 bulldozer owned by the New Zealand Ministry of Works.
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