Compare/McCormick-Deering T-40 vs McCormick-Deering WD-9

McCormick-Deering T-40 vs McCormick-Deering WD-9

Verdict: McCormick-Deering T-40 vs McCormick-Deering WD-9

The McCormick-Deering T-40 and the McCormick-Deering WD-9 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 WD-9 is the lighter machine (3,016 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 136.3 L) for longer stints between fills. McCormick-Deering WD-9 is the newer design (1940 vs 1937). In short: choose the McCormick-Deering T-40 for outright pulling power, or the McCormick-Deering WD-9 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 1 used for pull test.Reference

Total built

1,313Reference

—

Drive

crawlerReference

—

Factories

—

Melrose Park, Illinois, USAReference

Engine

Fuel tank

159.0 LReference

136.3 LReference

Drawbar (claimed)

26.1 kWReference

24.6 kWReference

Belt (claimed)

33.6 kWReference

31.3 kWReference

Drawbar (tested)

33.0 kWReference

31.7 kWReference

Belt (tested)

38.5 kWReference

34.6 kWReference

Displacement

4.9 LReference

5.5 LReference

Bore/Stroke

95 x 114 mmReference

112 x 140 mmReference

Rated RPM

1750Reference

1500Reference

Coolant capacity

45.4 LReference

41.6 LReference

Belt power (max)

38.5 kWReference

34.6 kWReference

Max power

33.0 kWReference

31.7 kWReference

Aux. fuel

—

3.3 LReference

Air cleaner

—

oil bathReference

Compression

—

15.7:1Reference

Starter type

—

gasoline ignitionReference

Transmission

Type

gearReference

Gears

5 forward and 1 reverseReference

Clutch

dry discReference

mechanical dry discReference

Dimensions

Weight

5792 kgReference

3016 kgReference

Length

358 cmReference

340 cmReference

Width

165 cmReference

172 cmReference

Height

165 cmReference

—

Front tire

—

30-6Reference

Rear tire

—

48-12Reference

Ag front

—

7.50x18Reference

Ag rear

—

14.00x21Reference

Operating weight

—

3016 kgReference

Ballasted weight

—

4653 kgReference

T-40 Serial Numbers

1937

6652Reference

—

1938

7921Reference

—

1939

8706Reference

—

Location:

Seat, right sideReference

Serial number plate near the fuel tank.Reference

Test results

Max pull

4333 kgReference

2888 kgReference

Belt fuel use (max)

—

12.1 l/hourReference

Variants

W-9

—

gasolineReference

WD-9

—

dieselReference

I-9

—

industrialReference

WD-9 Serial Numbers

1940

—

WDCB 501Reference

1941

—

WDCB 578Reference

1942

—

WDCB 2993Reference

1943

—

WDCB 3651Reference

1944

—

WDCB 5394Reference

1945

—

WDCB 11459Reference

1946

—

WDCB 17289Reference

1947

—

WDCB 22714Reference

1948

—

WDCB 29207Reference

1949

—

WDCB 36159Reference

1950

—

WDCB 45551Reference

1951

—

WDCB 51739Reference

1952

—

WDCB 59407Reference

1953

—

WDCB 64014Reference

Capacities

Diameter

—

35 cmReference

RPM

—

707Reference

Speed

—

790.35 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.