Overview
The CO-OP Model G is a 2WD row-crop tractor manufactured by Cletrac between 1939 and 1941, featuring a liquid-cooled 1.9L 4-cylinder Hercules gasoline engine. It utilizes a 3-speed gear transmission and an open operator station, with a total production run of 7,527 units built in Cleveland, Ohio.
Ideal Applications
Nebraska Test Performance:
During Nebraska Tractor Test 323, the tractor achieved a maximum tested belt power of 19.29 hp and a maximum drawbar pull of 1,699 lbs using its third gear for the power test.
Mechanical and Drive Configuration:
The tractor is equipped with a 9-inch dry plate clutch, manual steering, and an oil bath air cleaner, supported by 5.50-16 front and 9-24 rear ag tires.
Belt Pulley Specifications:
The factory belt pulley system operates at 1065 RPM with a diameter of 9.5 inches and a width of 5.5 inches, providing a speed of 2825 feet per minute.
Production
| Description | Row-Crop tractor / Built in Cleveland, Ohio, USA |
|---|---|
| Distributor | CO-OP |
| Manufacturer | Cletrac |
| Total built | 7,527 |
Engine
| Engine type | Hercules 1.9L 4-cyl gasoline |
|---|---|
| Fuel tank | 12 gal (45.4 L) |
| Air cleaner | oil bath |
| Bore/Stroke | 3.00x4.00 inches (76 x 102 mm) |
| Compression | 5.75:1 |
| Coolant capacity | 12 qts (11.4 L) |
| Description | Hercules IXA3 / gasoline / 4-cylinder / liquid-cooled |
| Displacement | 113.12 ci (1.9 L) |
| Oil capacity | 5 qts (4.7 L) |
| Rated RPM | 1400 (drawbar) |
| Starter type | manual start |
| Belt (claimed) | 18 hp (13.4 kW) |
| Belt (tested) | 19.29 hp (14.4 kW) |
| Drawbar (tested) | 14.26 hp (10.6 kW) |
| Plows | 1 (14-inch) |
Transmission
| Clutch | 9-inch dry plate |
|---|---|
| Gears | 3 forward and 1 reverse |
| Oil capacity | 10 qts (9.5 L) |
| Transmission type | 3-speed gear |
| Type | gear |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering |
| Drive type | Two-wheel drive |
PTO
| Mid PTO Type | 560 |
|---|
Dimensions & Tires
| Ag front | 5.50-16 |
|---|---|
| Ag rear | 9-24 |
| Ballasted weight | 3115 lbs (1412 kg) |
| Height (hood) | 55 inches (139 cm) |
| Length | 118 inches (299 cm) |
| Shipping weight | 2105 lbs (954 kg) |
| Wheelbase | 80 inches (203 cm) |
| Front tire | 5.50-16 |
| Rear tire | 9-24 |
| Weight | 2105 lbs (954 kg) |
| Wheelbase | 80 inches (203 cm) |
Belt Pulley
| Diameter | 9.5 inches (24 cm) |
|---|---|
| RPM | 1065 |
| Speed | 2825 ft/min (861.06 meters/min) |
| Width | 5.5 inches (13 cm) |
G Serial Numbers
| 1939 | 1FA000 |
|---|---|
| 1940 | 5FA388 |
| 1941 | 1FA0086 |
| 1942 | 1FA6532 |
| Description | FAQ: How to read a serial number table. |
Links
| Description | Cletrac General GG: article at Yesterday's Tractor Co |
|---|
Nebraska Tractor Test 323
| Belt power (max) | 19.29 hp (14.4 kW) |
|---|---|
| Description | Gasoline 3-speed 2WDAugust 10 - 30, 1939Link: Nebraska Tractor Test 323 file / Drawbar performance / Gear 3 used for power test. / Gear 1 used for pull test. |
| Max power | 14.26 hp (10.6 kW) |
| Max pull | 1699 lbs (770 kg) |