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Cockshutt 40
A Cockshutt 40 with a Cockshutt 20 behind
Type	Row-crop agricultural tractor
Manufacturer	Cockshutt Plow Company
Production	1949-1958
Length	132 inches (340 cm)
Height	62.5 inches (159 cm) to hood
Weight	5,305 pounds (2,406 kg)
Propulsion	Rear wheels
Engine model	Buda 3.8L 4-cylinder
Gross power	47 horsepower (35 kW)
PTO power	43.3 horsepower (32.3 kW) (belt)
Drawbar power	37.855 horsepower (28.228 kW)
Drawbar pull	5,538 pounds (2,512 kg)
NTTL test	442 (gasoline)
Succeeded by	Cockshutt 35 and Cockshutt 560 diesel

The Cockshutt 40 row-crop tractor was the second tractor produced by the Cockshutt Plow Company, from 1949 to 1958. Having developed the medium-sized Cockshutt 30, Cockshutt developed the heavier 40, using a six-cylinder engine. The 40 was rated for four plows. It was sold in the United States as the CO-OP E4.

Description and production

The Cockshutt 40 was scaled up from the 30, with many of the same features, including a live power takeoff (PTO), which at that time was a novelty. This optional feature allowed the tractor to operate machinery at a constant speed whether the tractor was in motion or stationary. The tractor was styled in the same streamlined manner as the 30 by Canadian architect Charles Brooks. A 230-cubic-inch (3,800 cc) six-cylinder engine was provided by the American Buda Engine Company for the 40, supplemented by a diesel version in 1950. Kerosene and LP gas options were added to the product line in 1953.

Following the acquisition of Buda by competitor Allis Chalmers in 1953, Cockshutt used Perkins and Hercules engines. 40s with Perkins four-cylinder diesels were designated the Cockshutt 40D4 from 1954 to 1957, and the Golden Eagle in 1956 and 1957. The 40D4 eventually became the basis for the Cockshutt 560.

In addition to its optional live PTO, the 40 could also operate belt-connected apparatus. Models were produced with narrow double or single front wheels, a wide standard fixed axle and an adjustable wide row-crop axle. 14,929 Cockshutt 40s and derivatives were built at Cockshutt's Brantford, Ontario plant from 1949 to 1958. Base price in 1955 was CA$2,626. A fully-optioned 40 could cost more than CA$3,600.

Derivatives

Painted all-orange, the CO-OP E4 was a Cockshutt 40 rebranded for sale in the United States. The 40 was also sold through the Gambles department store chain, but unlike the 30, was never branded in the Gambles Farmcrest line.

The Cockshutt 50 was developed using Model 40 transmission components and running gear, but was substantially heavier and more powerful.

Cockshutt 35

Cockshutt 35
Cockshutt 35
Type	Row-crop agricultural tractor
Manufacturer	Cockshutt Plow Company
Production	1955-1958
Propulsion	Rear wheels
Engine model	Hercules 3.2L 4-cylinder
Gross power	47 horsepower (35 kW)
PTO power	47.25 horsepower (35.23 kW) (belt)
Preceded by	Cockshutt 40
Succeeded by	Cockshutt 550

The Cockshutt 35 was developed to replace accommodate a four-cylinder Hercules Engine Company engine to replace the 40's Buda engines. Buda had been acquired by competitor Allis-Chalmers, and Cockshutt sought an independent supplier. The new tractor used the basic Model 40 frame, with a four-cylinder 198-cubic-inch (3,240 cc) Hercules GO198 gasoline engine, with a 6-speed transmission. The 35L version was a low-profile standard tractor with fixed axle width.

The 1956 Black Hawk version was marketed in the United States to promote Cockshutt's acquisition of the Black Hawk line of Ohio Cultivator Company tillage accessories, with no functional changes. Another promotional version, the Golden Arrow, was produced in 1957 with an enhanced three-point hitch with draft and depth control. 135 were built. The Cockshutt 550 was a descendant of the Golden Arrow version.

1,985 Cockshutt 35s and derivatives were built at Brantford from 1955 to 1958. Base price in 1958 for a Deluxe 35 Blackhawk was CA$2,640. A fully-optioned model would cost about CA$3,000.

References

1. Miller, Melissa Carpenter, ed. (1999). Cockshutt: The Complete Story. American Society of Agricultural Engineers. pp. 26–31. ISBN 1-892769-07-7.
2. ^ "Cockshutt 40". TractorData. Retrieved 19 March 2022.
3. ^ Pripps, Robert N. (2020). The Field Guide to Classic Farm Tractors. Motor Books. p. 189. ISBN 978-0-7603-6844-2.
4. ^ Swinford, Norm (1999). The Proud Heritage of AGCO Tractors. American Society of Agricultural Engineers. p. 131. ISBN 1-892769-08-5.
5. ^ Cockshutt 1999. p. 97
6. Cockshutt 1999. p. 101
7. "CO-OP E4". TractorData. Retrieved 19 March 2022.
8. Cockshutt 1999. p. 30
9. Cockshutt 1999, pp. 37-43
10. "Cockshutt 35". TractorData. Retrieved 20 March 2022.
11. ^ Cockshutt 1999. pp. 44-47
12. Swinford, p. 132
13. Cockshutt 1999. p. 102

• Cockshutt tractors
• Vehicles introduced in 1949