Compare/McCormick-Deering T-40 vs McCormick-Deering W-6

McCormick-Deering T-40 vs McCormick-Deering W-6

Verdict: McCormick-Deering T-40 vs McCormick-Deering W-6

The McCormick-Deering T-40 and the McCormick-Deering W-6 are both tractors — here is how they stack up on the figures that matter. McCormick-Deering T-40 leads on rated power with 35 hp against 33 hp. McCormick-Deering W-6 is the lighter machine (1,837 kg vs 5,792 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. McCormick-Deering T-40 holds more fuel (159.0 L vs 79.5 L) for longer stints between fills. McCormick-Deering W-6 is the newer design (1940 vs 1937). In short: choose the McCormick-Deering T-40 for outright pulling power, or the McCormick-Deering W-6 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

35 hp

33 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

McCormick-Deering (a part of International Harvester)Reference

Gasoline 5-speed crawlerMay 4 - 14, 1937Link: Nebraska Tractor Test 281 fileReference

Gear 2 used for power test.Reference

Total built

1,313Reference

28,378Reference

Drive

crawlerReference

—

Engine

Fuel tank

159.0 LReference

79.5 LReference

Drawbar (claimed)

26.1 kWReference

24.5 kWReference

Belt (claimed)

33.6 kWReference

27.4 kWReference

Drawbar (tested)

33.0 kWReference

24.2 kWReference

Belt (tested)

38.5 kWReference

27.6 kWReference

Displacement

4.9 LReference

4.1 LReference

Bore/Stroke

95 x 114 mmReference

98 x 133 mmReference

Rated RPM

1750Reference

1450Reference

Coolant capacity

45.4 LReference

23.7 LReference

Belt power (max)

38.5 kWReference

27.6 kWReference

Max power

33.0 kWReference

24.2 kWReference

Aux. fuel

—

3.3 LReference

Air cleaner

—

oil bathReference

Compression

—

5.65:1Reference

Firing order

—

1-3-4-2Reference

Sparkplug gap

—

0.635 mmReference

Point gap

—

0.330 mmReference

Intake valve clearance

—

0.432 mmReference

Exhaust valve clearance

—

0.432 mmReference

Transmission

Type

gearReference

sliding gearReference

Gears

5 forward and 1 reverseReference

Clutch

dry discReference

279.4mm mechanical dry discReference

Oil capacity

—

49.2 LReference

Dimensions

Weight

5792 kgReference

1837 kgReference

Length

358 cmReference

315 cmReference

Width

165 cmReference

177 cmReference

Height

165 cmReference

178 cmReference

Wheelbase

—

193 cmReference

Front tire

—

6.00-16Reference

Rear tire

—

13-30Reference

Ag front

—

6.00-16Reference

Ag rear

—

13-30Reference

Height (hood)

—

149 cmReference

Shipping weight

—

1837 kgReference

Front tread

—

118 cmReference

Rear tread

—

134 cmReference

T-40 Serial Numbers

1937

6652Reference

—

1938

7921Reference

—

1939

8706Reference

—

Location:

Seat, right sideReference

—

Test results

Max pull

4333 kgReference

2166 kgReference

Belt fuel use (max)

—

11.4 l/hourReference

Variants

WD-6

—

dieselReference

I-6

—

industrialReference

—

row-cropReference

PTO & Hydraulics

Rear PTO

—

transmissionReference

Rear PTO Type

—

540Reference

W-6 Serial Numbers

1940

—

501Reference

1941

—

1225Reference

1942

—

3718Reference

1943

—

5057Reference

1944

—

6313Reference

1945

—

9396Reference

1946

—

14153Reference

1947

—

17792Reference

1948

—

22961Reference

1949

—

28704Reference

1950

—

33698Reference

1951

—

38518Reference

1952

—

44318Reference

1953

—

45274Reference

Final

—

46011Reference

Capacities

Diameter

—

27 cmReference

RPM

—

899Reference

Speed

—

788.82 meters/minReference

Electrical

Ground

—

positiveReference

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.