Compare/McCormick-Deering Super WD-6 vs McCormick-Deering TA-40

McCormick-Deering Super WD-6 vs McCormick-Deering TA-40

Verdict: McCormick-Deering Super WD-6 vs McCormick-Deering TA-40

The McCormick-Deering Super WD-6 and the McCormick-Deering TA-40 are both tractors — here is how they stack up on the figures that matter. McCormick-Deering Super WD-6 leads on rated power with 41 hp against 35 hp. McCormick-Deering Super WD-6 is the lighter machine (2,494 kg vs 4,894 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. McCormick-Deering TA-40 holds more fuel (159.0 L vs 77.6 L) for longer stints between fills. McCormick-Deering Super WD-6 is the newer design (1952 vs 1932). In short: choose the McCormick-Deering Super WD-6 for outright pulling power, or the McCormick-Deering TA-40 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

McCormick-Deering

Fit score

Best match

Clear

McCormick-Deering

Fit score

Best match

Clear

Rated power

41 hp

35 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

McCormick-Deering (a part of International Harvester)Reference

The Torque Amplifier was available on the Super WD-6-TA in 1954Reference

Gear 1 used for pull test.Reference

Total built

—

1,313Reference

Drive

—

crawlerReference

Variants

Super W-6

gasoline engineReference

—

WD6-TA

Torque Amplifier transmissionReference

—

Engine

Fuel tank

77.6 LReference

159.0 LReference

Drawbar (claimed)

24.6 kWReference

26.1 kWReference

Drawbar (tested)

28.4 kWReference

31.9 kWReference

Belt (tested)

34.9 kWReference

34.7 kWReference

Displacement

4.3 LReference

4.6 LReference

Bore/Stroke

102 x 133 mmReference

92 x 114 mmReference

Compression

16.5:1Reference

—

Rated RPM

1450Reference

1600Reference

Firing order

1-3-4-2Reference

—

Starter volts

12Reference

—

Coolant capacity

26.5 LReference

45.4 LReference

Belt power (max)

34.9 kWReference

34.7 kWReference

Max power

28.4 kWReference

31.9 kWReference

Belt (claimed)

—

33.6 kWReference

Transmission

Type

two-speed power shiftReference

gearReference

Gears

10 forward and 2 reverseReference

5 forward and 1 reverseReference

Clutch

dry discReference

Transmission

International Harvester Torque AmplifierReference

—

PTO & Hydraulics

PTO (claimed)

30.6 kWReference

—

Dimensions

Weight

2494 kgReference

4894 kgReference

Front tire

6.00x16Reference

—

Rear tire

15.00x30Reference

—

Ag front

6.00x16Reference

—

Ag rear

15.00x30Reference

—

Length

317 cmReference

358 cmReference

Width

177 cmReference

165 cmReference

Height

228 cmReference

165 cmReference

Super WD-6 Serial Number Location

Super WD-6 Serial Numbers

1952

501Reference

—

1953

2277Reference

—

1954

8997Reference

—

Final

9084Reference

6624Reference

Test results

Belt fuel use (max)

12.5 l/hourReference

19.7 l/hourReference

Max pull

2656 kgReference

4263 kgReference

TA-40 Serial Numbers

1932

—

501Reference

1933

—

834Reference

1934

—

1471Reference

1935

—

3086Reference

1936

—

4649Reference

Location:

—

Seat, right sideReference

Capacities

Diameter

—

42 cmReference

RPM

—

603.8Reference

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.