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McCormick-Deering T-20 vs McCormick-Deering W-12

Verdict: McCormick-Deering T-20 vs McCormick-Deering W-12

The McCormick-Deering T-20 and the McCormick-Deering W-12 are both tractors — here is how they stack up on the figures that matter. McCormick-Deering T-20 leads on rated power with 18 hp against 10 hp. McCormick-Deering W-12 is the lighter machine (1,315 kg vs 3,179 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. McCormick-Deering T-20 holds more fuel (83.3 L vs 41.6 L) for longer stints between fills. McCormick-Deering W-12 is the newer design (1934 vs 1931). In short: choose the McCormick-Deering T-20 for outright pulling power, or the McCormick-Deering W-12 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Fit & specs
McCormick-Deering T-20 Tractor
McCormick-Deering
62
Fit score
Best match
Clear
McCormick-Deering W-12 Tractor
McCormick-Deering
62
Fit score
Best match
Clear
Rated power
18 hp
10 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
McCormick-Deering (a part of International Harvester)Reference
McCormick-Deering (a part of International Harvester)Reference
Gear 1 used for pull test.Reference
Gasoline 3-speed 2WDNovember 13 - 16, 1934Link: Nebraska Tractor Test 231 fileReference
Total built
15,199Reference
3,633Reference
Drive
crawlerReference
Steering
Dry, single plate clutch, 11-inchReference
Engine
Fuel tank
83.3 LReference
41.6 LReference
Aux. fuel
3.8 LReference
2.8 LReference
Drawbar (claimed)
13.4 kWReference
7.5 kWReference
Belt (claimed)
18.6 kWReference
11.2 kWReference
Drawbar (tested)
17.4 kWReference
10.1 kWReference
Belt (tested)
19.8 kWReference
13.2 kWReference
Displacement
3.6 LReference
1.9 LReference
Bore/Stroke
95 x 127 mmReference
76 x 102 mmReference
Rated RPM
1250Reference
1700Reference
Firing order
1-3-4-2Reference
1-3-4-2Reference
Coolant capacity
26.5 LReference
13.2 LReference
Belt power (max)
19.8 kWReference
13.2 kWReference
Max power
17.4 kWReference
10.1 kWReference
Plows
1Reference
Air cleaner
oil bathReference
Transmission
Type
gearReference
unsynchronized gearReference
Gears
3 forward and 1 reverseReference
3 forward and 1 reverseReference
Clutch
dry discReference
Dimensions
Weight
3179 kgReference
1315 kgReference
Length
311 cmReference
261 cmReference
Width
139 cmReference
128 cmReference
Height
140 cmReference
Wheelbase
152 cmReference
Front tire
22.50x3.50Reference
Rear tire
42x8Reference
Ag front
22.50x3.50 steelReference
Ag rear
42x8 steelReference
Height (steering wheel)
139 cmReference
Shipping weight
1315 kgReference
Front tread
103 cmReference
Rear tread
107 cmReference
T-20 Serial Numbers
1931
ST501Reference
1932
ST1420Reference
1933
ST151Reference
1934
ST2685Reference
512 (I-12)Reference
1935
ST3586Reference
775 (I-12)Reference
1936
ST5973Reference
975 (I-12)Reference
1937
ST9117Reference
1525 (I-12)Reference
1938
ST13173Reference
2495 (I-12)Reference
1939
ST14636Reference
Location:
Seat, right sideReference
Test results
Belt fuel use (max)
9.8 l/hourReference
6.8 l/hourReference
Max pull
2338 kgReference
970 kgReference
Variants
F-12
row-cropReference
W-12
standardReference
O-12
orchardReference
I-12
industrialReference
PTO & Hydraulics
Rear PTO Type
567Reference
W-12 Serial Numbers
Final
2703 (I-12)Reference
Capacities
Diameter
33 cmReference
RPM
787Reference
Speed
832.10 meters/minReference

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.

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