Cletrac DD
The Cletrac DD is a tractor produced by Cletrac. It is equipped with a 474 ci 7.8 L engine. The rated power output is 73.3 hp 54.7 kW. Transmission: 4 forward and 2 reverse. Drive type: crawler. Operating weight: 13300 lbs 6032 kg.
Engine Power
73.3 hp
54.7 kW
Drive & Traction
crawler
Fuel & Capacities
30 gal
113.6 L
Transmission
4 forward and 2 reverse
Operating Weight
13300 lbs
6032 kg
Cletrac DD 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
 | 1937 - 1958
Agricultural Crawler tractor |
|---|---|
1937 - 1958 | |
Agricultural Crawler tractor | |
Production | |
|---|---|
Manufacturer | Cletrac (a part of Oliver) |
Agricultural Crawler tractor | |
Built in Cleveland, Ohio, USA | |
Total built | 5,624 |
Variants | |
|---|---|
DG | gasoline |
DD | diesel |
Cletrac DD Engine | |
|---|---|
Hercules 7.8L 6-cyl diesel | |
Fuel tank | 30 gal
113.6 L |
Engine details ...  | |
Cletrac DD Transmission | |
|---|---|
4-speed gear | |
Transmission details ...  |
Cletrac DD Power | |
|---|---|
Drawbar (claimed) | 45 hp
33.6 kW |
Belt (claimed) | 63 hp
47.0 kW |
Drawbar (tested) | 58.81 hp
43.9 kW |
Belt (tested) | 73.3 hp
54.7 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Drive | crawler |
Open operator station. | |
Dimensions & Tracks | |
|---|---|
Weight | 13300 lbs
6032 kg |
Tracks | |
Full dimensions and tracks ...  | |
Engine
Engine Detail — 474 ci / 7.8 L Diesel
Manufacturer | Hercules DRXB |
Fuel Type | Diesel |
Configuration | 6-cylinder, liquid-cooled vertical I-head |
Displacement | 474 ci
7.8 L |
Bore/Stroke | 4.375x5.25 inches
111 x 133 mm |
Air cleaner | Vortox oil bath |
Compression | 15:1 |
Rated RPM | 1300 |
Starter volts | 24 |
Coolant capacity | 41 qts
38.8 L |
Transmission
Transmission — 4 forward and 2 reverse gear
Type | gear |
Gears | 4 forward and 2 reverse |
Clutch | dry disc |
 | |
Dimensions
Cletrac DD Tracks |
|---|
Dimensions | |
|---|---|
Length | 128 inches
325 cm |
Height | 67 inches
170 cm |
Weight | 13300 lbs
6032 kg |
Tests
Nebraska Tractor Test 436 | |
|---|---|
Diesel 4-speed crawler
November 8 - 22, 1949
Link: Nebraska Tractor Test 436 file | |
Belt power (max) | 73.3 hp
54.7 kW |
Belt fuel use (max) | 4.7 gal/hour
17.8 l/hour |
Drawbar performance | |
Max power | 58.81 hp
43.9 kW |
Gear 3 used for power test. | |
Max pull | 14735 lbs
6683 kg |
Gear 1 used for pull test. | |
Photos
Cletrac DD tractor photo
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