CO-OP G
The CO-OP G is a tractor produced by Co Op. It is equipped with a 113.12 ci 1.9 L engine. The rated power output is 19.29 hp 14.4 kW. Transmission: 3 forward and 1 reverse. Operating weight: 2105 lbs 954 kg.
Engine Power
19.29 hp
14.4 kW
Fuel & Capacities
12 gal
45.4 L
Transmission
3 forward and 1 reverse
Operating Weight
2105 lbs
954 kg
Co Op CO-OP G 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
 | 1939 - 1941
Row-Crop tractorCletrac built |
|---|---|
1939 - 1941 | |
Row-Crop tractor | |
Cletrac built | |
1939 - 1941 | |
|---|---|
Row-Crop tractor | |
Cletrac built |
Note: the CO-OP model G is the same as the Cletrac General GG. The following data is from the General GG listing. |
|---|
Production | |
|---|---|
Distributor | CO-OP |
Manufacturer | Cletrac |
Row-Crop tractor | |
Built in Cleveland, Ohio, USA | |
Total built | 7,527 |
CO-OP G Engine | |
|---|---|
Hercules 1.9L 4-cyl gasoline | |
Fuel tank | 12 gal
45.4 L |
Engine details ...  | |
CO-OP G Transmission | |
|---|---|
3-speed gear | |
Transmission details ...  |
CO-OP G Power | |
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Belt (claimed) | 18 hp
13.4 kW |
Plows | 1 (14-inch) |
Drawbar (tested) | 14.26 hp
10.6 kW |
Belt (tested) | 19.29 hp
14.4 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Open operator station. |
Power Take-off (PTO) | |
|---|---|
Mid PTO Type | 560 |
Dimensions & Tires | |
|---|---|
Wheelbase | 80 inches
203 cm |
Weight | 2105 lbs
954 kg |
Front tire | 5.50-16 |
Rear tire | 9-24 |
Full dimensions and tires ...  | |
Links | |
|---|---|
Cletrac General GG: article at Yesterday's Tractor Co |
Belt Pulley | |
|---|---|
Diameter | 9.5 inches
24 cm |
Width | 5.5 inches
13 cm |
RPM | 1065 |
Speed | 2825 ft/min
861.06 meters/min |
Engine
| 1939 - 1941
Row-Crop tractorCletrac built |
|---|---|
1939 - 1941 | |
Row-Crop tractor | |
Cletrac built | |
1939 - 1941 | |
|---|---|
Row-Crop tractor | |
Cletrac built |
Note: the CO-OP model G is the same as the Cletrac General GG. The following data is from the General GG listing. |
|---|
Engine Detail — 113.12 ci / 1.9 L Gasoline
Manufacturer | Hercules IXA3 |
Fuel Type | Gasoline |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 113.12 ci
1.9 L |
Bore/Stroke | 3.00x4.00 inches
76 x 102 mm |
Air cleaner | oil bath |
Compression | 5.75:1 |
Rated RPM | 1400 (drawbar) |
1700 (belt) | |
Starter type | manual start |
Oil capacity | 5 qts
4.7 L |
Coolant capacity | 12 qts
11.4 L |
Transmission
| 1939 - 1941
Row-Crop tractorCletrac built |
|---|---|
1939 - 1941 | |
Row-Crop tractor | |
Cletrac built | |
1939 - 1941 | |
|---|---|
Row-Crop tractor | |
Cletrac built |
Note: the CO-OP model G is the same as the Cletrac General GG. The following data is from the General GG listing. |
|---|
Transmission — 3 forward and 1 reverse gear
Type | gear |
Gears | 3 forward and 1 reverse |
Clutch | 9-inch dry plate |
Oil capacity | 10 qts
9.5 L |
 | |
Dimensions
| 1939 - 1941
Row-Crop tractorCletrac built |
|---|---|
1939 - 1941 | |
Row-Crop tractor | |
Cletrac built | |
1939 - 1941 | |
|---|---|
Row-Crop tractor | |
Cletrac built |
Note: the CO-OP model G is the same as the Cletrac General GG. The following data is from the General GG listing. |
|---|
CO-OP G Tires | |
|---|---|
Ag front | 5.50-16 |
Ag rear | 9-24 |
Dimensions | |
|---|---|
Wheelbase | 80 inches
203 cm |
Length | 118 inches
299 cm |
Height (hood) | 55 inches
139 cm |
Shipping weight | 2105 lbs
954 kg |
Ballasted weight | 3115 lbs
1412 kg |
Tests
| 1939 - 1941
Row-Crop tractorCletrac built |
|---|---|
1939 - 1941 | |
Row-Crop tractor | |
Cletrac built | |
1939 - 1941 | |
|---|---|
Row-Crop tractor | |
Cletrac built |
Note: the CO-OP model G is the same as the Cletrac General GG. The following data is from the General GG listing. |
|---|
Nebraska Tractor Test 323 | |
|---|---|
Gasoline 3-speed 2WD
August 10 - 30, 1939
Link: Nebraska Tractor Test 323 file | |
Belt power (max) | 19.29 hp
14.4 kW |
Drawbar performance | |
Max power | 14.26 hp
10.6 kW |
Gear 3 used for power test. | |
Max pull | 1699 lbs
770 kg |
Gear 1 used for pull test. | |