Co Op No. 3
Built: 1936-1950 · Series: Other models
More machines from model year 1936
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The Co Op No. 3 is a tractor built in 1936-1950. The six-cylinder engine produces 31.5 kW.
Within the range, rated power spans from 14 to 39 kW; with 31.5 kW, the No. 3 sits in the upper third. Directly alongside are the No. 2 with 27 kW below and the E5 with 39 kW above.
Co-op – other models: US cooperative tractors on a Cockshutt basis, models B, C, E3 and E5, 14 to 39 kW, engines by Chrysler, Buda, Waukesha, Continental and Hercules
Co-op tractors were built from the 1930s for the National Farm Machinery Cooperative, an alliance of American purchasing cooperatives that offered members affordable farm machinery under their own brand name. Production sat at various plants over time, and from the 1940s mainly with the Canadian manufacturer Cockshutt in Brantford, Ontario: the E3 and E5 models correspond technically to the Cockshutt 30 and 40 types. Farmer's Union Co-op No. 1 to No. 3 are parallel designations for cooperatives such as the Farmers' Union, under which the same tractors were sold regionally.
Read on 3 more paragraphs
The register lists here 11 versions with 14 to 39 kW (19 to 52 hp) from four- to six-cylinder engines by various American engine makers – Chrysler, Buda, Waukesha, Continental and Hercules – widely used as industrial and tractor engines from the 1930s to the 1950s.
Co-op tractors represent the cooperative movement in US agriculture, which sourced machinery outside the big brand dealer networks, and the close technical kinship with Cockshutt and sister brands such as Gamble-Farmcrest and CO-OP Implements in Canada.
On these rare tractors, what counts is the condition of the particular third-party engine and parts availability for it, the condition of clutch, gearbox and electrics, and rust on the bodywork; since the basis is often Cockshutt, some wearing parts can be sourced through Cockshutt and Oliver collectors.
Technical data
Engine
| Engine make | Chryslercorrect |
|---|---|
| Power | 42 hp (31.5 kW)correct |
| Cylinders | 6correct |
Dimensions and weights
| Unladen weight | 4,450 lbs (2018,5 kg)correct |
|---|
Drivetrain and chassis
| Drive | rear-wheel driveWDcorrect |
|---|
Origin and approval
| Plant | Battlefield, Michigan, USA; South Saint Paul, Minnesota, USA; Arthurdale, West Virginia, USAcorrect |
|---|
Frequently asked questions
How much power does the Co Op No. 3 have?
The Co Op No. 3 delivers 42 hp.
What engine does the Co Op No. 3 have?
6 cylinders.
When was the Co Op No. 3 built?
Production years: 1936-1950.
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Load the hydraulics and watch for sag.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
We do not sell machines. We ask the dealers who carry this model and come back with price and lead time.
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This page carries 9 individual figures for this model. They come from 1 recorded source; every figure can be traced there. What we cannot document is not here — we leave gaps open rather than estimate them.
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Other models in this series
(Huber)
B
C
E3
E5
Farmer's Union Co-op No. 1
Farmer's Union Co-op No. 2
Farmer's Union Co-op No. 3
No. 1
No. 2
Sources: [1]
Tractor in 3D section
Turn the model, look inside and click an assembly — each one is explained.