CO-OP E3
The CO-OP E3 is a tractor produced by Co Op. It is equipped with a 153.1 ci 2.5 L engine. The listed engine power is 30.28 hp 22.6 kW. Transmission: Hi-low. Operating weight: 3,620 lbs 1642 kg.
Engine Power
30.28 hp
22.6 kW
Fuel & Capacities
15 gal
56.8 L
Transmission
Hi-low
Operating Weight
3,620 lbs
1642 kg
Overview
 | Row-Crop tractor | Row-Crop tractor |
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Note: the CO-OP model E3 is the same as the Cockshutt 30. The following data is from the 30 listing. |
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Production | |
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Manufacturer | CO-OP |
Row-Crop tractor | |
Built in Brantford, Ontario, Canada | |
Total built | 37,328 |
Original price | $2,500 (1952) |
CO-OP E3 Engine | |
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Buda 2.5L 4-cyl gasoline | |
Engine details ...  |
CO-OP E3 Power | |
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Drawbar (claimed) | 21 hp
15.7 kW |
PTO (claimed) | 28 hp
20.9 kW |
Plows | 2-3 |
Drawbar (tested) | 27.25 hp
20.3 kW |
PTO (tested) | 30.28 hp
22.6 kW |
Belt (tested) | 31.88 hp
23.8 kW |
Performance test details ...  | |
Mechanical | |
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Two-wheel drive | |
Mechanical contracting band brakes | |
Open operator station. |
Capacity | |
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Fuel | 15 gal
56.8 L |
Hydraulic system | 1.5 gal
5.7 L |
Hydraulics | |
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Capacity | 1.5 gal
5.7 L |
Power Take-off (PTO) | |
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Rear PTO | live |
Rear PTO Type | 540 |
Dimensions & Tires | |
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Weight | 3,620 lbs
1642 kg |
Front tire | 5.50-16 |
Rear tire | 11-38 |
Full dimensions and tires ...  | |
Electrical | |
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Ground | positive |
Battery volts | 6 |
Engine
Note: the CO-OP model E3 is the same as the Cockshutt 30. The following data is from the 30 listing. |
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Engine Detail — 153.1 ci / 2.5 L Gasoline
Manufacturer | Buda |
Fuel Type | Gasoline |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 153.1 ci
2.5 L |
Bore/Stroke | 3.4375x4.125 inches
87 x 105 mm |
Compression | 6:1 |
Rated RPM | 1650 |
Starter volts | 6 |
Coolant capacity | 18 qts
17.0 L |
Transmission
Note: the CO-OP model E3 is the same as the Cockshutt 30. The following data is from the 30 listing. |
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Transmission options | |
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4-speed gear | |
8-speed |
Transmission — 4 forward and 1 reverse gear
Type | gear |
Gears | 4 forward and 1 reverse |
 | |
Transmission — Hi-low
Transmission | Hi-low |
Gears | 8 forward and 2 reverse |
Adds a high-low shift to the basic four-speed transmission. | |
Dimensions
Note: the CO-OP model E3 is the same as the Cockshutt 30. The following data is from the 30 listing. |
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CO-OP E3 Tires | |
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Ag front | 5.50-16 |
Ag rear | 11-38 |
Dimensions | |
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Length | 132 inches
335 cm |
Height | 60 inches
152 cm |
Operating weight | 3,620 lbs
1642 kg |
Ballasted weight | 5,528 lbs
2507 kg |
Tests
Note: the CO-OP model E3 is the same as the Cockshutt 30. The following data is from the 30 listing. |
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Nebraska Tractor Test 382 | |
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Gasoline 4-speed 2WD
May 21 - June 3, 1947
Link: Nebraska Tractor Test 382 file | |
Belt power (max) | 31.88 hp
23.8 kW |
Belt fuel use (max) | 3.0 gal/hour
11.4 l/hour |
PTO performance | |
Power at rated engine speed | 30.28 hp
22.6 kW |
Fuel use | 2.6 gal/hour
9.8 l/hour |
Drawbar performance | |
Max power | 27.25 hp
20.3 kW |
Max pull | 3,745 lbs
1698 kg |
Gear 1 used for pull test. | |
Photos
CO-OP E3 with tricycle front.
CO-OP E3 with wide front.
CO-OP E3 with wide front.
CO-OP E3 operator station and controls.
Recommended Implements & Sizing Guide
Engineering recommendations for Co Op CO-OP E3 based on its 30.28 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm) | Medium Duty | Standard utility farm tillage. |
Rotary Cutter / MowerMowing & Clearing | 5 ft (60 in)1.5 m | Medium Duty | Pasture maintenance and weeds up to 1.5" diameter. |
Rotary TillerSeedbed Prep | 54 to 60 in135 - 150 cm | Medium Duty | Thorough seedbed preparation in orchards and vegetable plots. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Co Op CO-OP E3.
Estimated Continuous Field Runtime: 9.5 hrs
Approximately 9.5 hours of continuous field operation at ~75% rated power on a full tank (15 gal / 56.8 L).
Estimated 75% Load Fuel Burn~1.6 gal/hr (6 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Co Op CO-OP E3 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Co Op CO-OP E3.
Converted Equivalents:
Horsepower (HP)30.3 hp
Kilowatts (kW)22.6 kW
Metric Horsepower (PS / CV)30.7 PS
Direct Competitor Comparison
Compare CO-OP E3 against same-era industry alternatives in the same horsepower class.
Current Model
Co Op
CO-OP E3
Engine Power:30.28 hp
22.6 kW
★ Baseline Reference