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B.F. Avery A vs McCormick-Deering OS-4
Verdict: B.F. Avery A vs McCormick-Deering OS-4
The B.F. Avery A and the McCormick-Deering OS-4 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 25 hp. McCormick-Deering OS-4 is the newer design (1944 vs 1943). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
B.F. Avery
62
Fit score
Best match
Clear
McCormick-Deering
62
Fit score
Best match
Clear
Rated power
25 hp
25 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
B.F. AveryReference
McCormick-DeeringReference
liquid-cooledReference
liquid-cooledReference
Engine
Belt (claimed)
18.6 kWReference
20.5 kWReference
Plows
2 (14-inch)Reference
—
Displacement
2.0 LReference
2.5 LReference
Bore/Stroke
79 x 102 mmReference
86 x 113 mmReference
Rated RPM
1450Reference
1650Reference
Fuel tank
—
66.2 LReference
Aux. fuel
—
2.8 LReference
Drawbar (claimed)
—
18.6 kWReference
Air cleaner
—
oil bathReference
Compression
—
4.5:1 (kerosene)Reference
Firing order
—
1-3-4-2Reference
Oil capacity
—
22.7 LReference
Coolant capacity
—
16.1 LReference
Transmission
Type
unsynchronized gearReference
gearReference
Gears
3 forward and 1 reverseReference
5 forward and 1 reverseReference
A Serial Numbers
1943
1A000Reference
—
1944
1A1498Reference
—
1945
4A786Reference
—
1946
7A305Reference
—
1947
9A866Reference
—
1948
13A247Reference
—
1949
17A456Reference
—
1950
19A366Reference
—
Final
20A114Reference
—
Capacities
Diameter
21 cmReference
24 cmReference
Width
16 cmReference
140 cmReference
Speed
315.47 meters/minReference
792.78 meters/minReference
RPM
—
1019Reference
Variants
W-4
—
standardReference
O-4
—
orchardReference
OS-4
—
orchard, without full sheet metalReference
PTO & Hydraulics
Rear PTO Type
—
540Reference
Dimensions
Wheelbase
—
169 cmReference
Weight
—
1868 kgReference
Front tire
—
5.50-16Reference
Rear tire
—
12-26Reference
Ag front
—
5.50-16Reference
Ag rear
—
12-26Reference
Length
—
307 cmReference
Height
—
145 cmReference
Shipping weight
—
1868 kgReference
Clearance (front axle)
—
38 cmReference
Front tread
—
116 cmReference
Rear tread
—
106 cmReference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.