CO-OP E5
The CO-OP E5 is a tractor produced by Co Op. It is equipped with a 273 ci 4.5 L engine. The rated power output is 55.56 hp 41.4 kW. Transmission: 6 forward and 2 reverse. Operating weight: 6041 to 6163 pounds.
Engine Power
55.56 hp
41.4 kW
Fuel & Capacities
Diesel
Transmission
6 forward and 2 reverse
Operating Weight
6041 to 6163 pounds
Co Op CO-OP E5 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
![]() | Row-Crop tractor | Row-Crop tractor |
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Note: the CO-OP model E5 is the same as the Cockshutt 50. The following data is from the 50 listing. |
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Production | |
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Manufacturer | CO-OP |
Row-Crop tractor | |
Built in Brantford, Ontario, Canada | |
Total built | 3,974 |
Original price | $4,100 (1957) |
CO-OP E5 Transmission | |
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6-speed unsynchronized gear | |
Transmission details ... |
CO-OP E5 Power | |
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Drawbar (claimed) | 39 hp
29.1 kW |
Belt (claimed) | 49 hp
36.5 kW |
Plows | 4-5 |
Drawbar (tested) | 51.59 hp
38.5 kW |
Belt (tested) | 55.56 hp
41.4 kW |
Performance test details ... | |
Mechanical | |
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Two-wheel drive | |
Independent mechanical disc brakes | |
Open operator station. |
Power Take-off (PTO) | |
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Rear PTO | independent |
Rear PTO Type | 540 |
Dimensions & Tires | |
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Wheelbase | 86.5 inches
219 cm |
Weight | 6041 to 6163 pounds |
Front tire | 7.50x16 |
Rear tire | 14.00x34 |
Full dimensions and tires ... | |
Engine
Note: the CO-OP model E5 is the same as the Cockshutt 50. The following data is from the 50 listing. |
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Engine options | |
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Buda 4.5L 6-cyl gasoline | |
Buda 4.5L 6-cyl diesel |
Engine Detail — 273 ci / 4.5 L Gasoline
Manufacturer | Buda |
Fuel Type | Gasoline |
Configuration | 6-cylinder, liquid-cooled vertical I-head |
Displacement | 273 ci
4.5 L |
Bore/Stroke | 3.75x4.125 inches
95 x 105 mm |
Compression | 6.6:1 |
Rated RPM | 1650 |
Engine Detail — 273 ci / 4.5 L Diesel
Manufacturer | Buda |
Fuel Type | Diesel |
Configuration | 6-cylinder, liquid-cooled vertical I-head |
Displacement | 273 ci
4.5 L |
Bore/Stroke | 3.75x4.125 inches
95 x 105 mm |
Compression | 14.3:1 |
Rated RPM | 1650 |
Transmission
Note: the CO-OP model E5 is the same as the Cockshutt 50. The following data is from the 50 listing. |
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Transmission — 6 forward and 2 reverse unsynchronized gear
Type | unsynchronized gear |
Gears | 6 forward and 2 reverse |
Clutch | dry disc |
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Dimensions
Note: the CO-OP model E5 is the same as the Cockshutt 50. The following data is from the 50 listing. |
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CO-OP E5 Tires | |
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Ag front | 7.50x16 |
Ag rear | 14.00x34 |
Dimensions | |
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Wheelbase | 86.5 inches
219 cm |
Length | 132 inches
335 cm |
Height | 79.5 inches
201 cm |
CO-OP E5 Weight | |
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Operating | 6,041 lbs (gas)
2740 kg |
6,163 lbs (diesel)
2795 kg | |
Ballasted | 11,119 lbs
5043 kg |
Tests
Note: the CO-OP model E5 is the same as the Cockshutt 50. The following data is from the 50 listing. |
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Tractor Tests | |
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NTTL 487: diesel 6-speed 2WD | |
NTTL 488: gasoline 6-speed 2WD |
Nebraska Tractor Test 487 | |
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Diesel 6-speed 2WD
October 29 - November 6, 1952
Link: Nebraska Tractor Test 487 file | |
Belt power (max) | 51.05 hp
38.1 kW |
Belt fuel use (max) | 3.5 gal/hour
13.2 l/hour |
Drawbar performance | |
Max power | 46.26 hp
34.5 kW |
Gear 5 used for power test. | |
Max pull | 6,319 lbs
2866 kg |
Gear 1 used for pull test. | |
Nebraska Tractor Test 488 | |
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Gasoline 6-speed 2WD
October 29 - November 6, 1952
Link: Nebraska Tractor Test 488 file | |
Belt power (max) | 55.56 hp
41.4 kW |
Belt fuel use (max) | 5.0 gal/hour
18.9 l/hour |
Drawbar performance | |
Max power | 51.59 hp
38.5 kW |
Gear 4 used for power test. | |
Max pull | 6,463 lbs
2931 kg |
Gear 1 used for pull test. | |

