McCormick-Deering WD-40 tractor specifications

1935 - 1940

1935 - 1940 Standard-tread tractor

Production

Production Manufacturer:McCormick-Deering (a part of International Harvester)
Type:Standard-tread tractor
Factory:Milwaukee, Wisconsin, USA

Variants

Variants WA-40:gasoline
WK-40:kerosene
WD-40:diesel

1935 - 1940

Standard-tread tractor

Production

Production
Manufacturer:	McCormick-Deering (a part of International Harvester)
Type:	Standard-tread tractor
Factory:	Milwaukee, Wisconsin, USA
The W-40 paint color changed from grey to red on November 1, 1936.

Variants

Variants
WA-40:	279ci gasoline
W-40:	298ci gasoline
WK-40:	298ci kerosene
WD-40:	diesel

McCormick-Deering W-40 Power

McCormick-Deering W-40 Power
Drawbar (claimed):	28 hp 20.9 kW
Belt (claimed):	45 hp 33.6 kW
Drawbar (tested):	35.22 hp 26.3 kW
Belt (tested):	49.76 hp 37.1 kW
power test details ...

McCormick-Deering W-40 Engines

McCormick-Deering W-40 Engines
International Harvester 4.9L 6-cyl gasoline
International Harvester 4.9L 6-cyl kerosene
International Harvester 4.0L 6-cyl gasoline
Fuel tank:	31 gal 117.3 L
Aux. fuel:	1.25 gal 4.7 L
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
Final drives:	bull gear
Steering:	manual
Cab:	Open operator station.
Transmissions:	3-speed unsynchronized gear
	4-speed unsynchronized gear
Transmission details ...

Power Take-off (PTO)

Power Take-off (PTO)
Rear RPM:	553

Dimensions & Tires

Dimensions & Tires
Wheelbase:	85 inches 215 cm
Weight:	6100 lbs 2766 kg
Front tire:	34x6
Rear tire:	50x12
Full dimensions and tires ...

W-40 Serial Numbers

W-40 Serial Numbers
1935:	501
1936:	1441
1937:	5120
1938:	7665
1939:	9756
1940:	10323
how to read serial numbers...

Belt Pulley

Belt Pulley
Diameter:	15.7 inches 39 cm
Width:	9 inches 22 cm
RPM:	645
Speed:	2647 ft/min 806.81 meters/min

McCormick-Deering WD-40 Power

McCormick-Deering WD-40 Power Drawbar (claimed):28 hp
20.9 kW
Belt (claimed):44 hp
32.8 kW
Plows:4 (14-inch)
Drawbar (tested):37.21 hp
27.7 kW
Belt (tested):48.79 hp
36.4 kW
power test details ...

1935 - 1940

Standard-tread tractor

Nebraska Tractor Test 246

Nebraska Tractor Test 246
Diesel 3-speed 2WD September 23 - 27, 1935 Link: Nebraska Tractor Test 246 file
Belt power (max):	48.79 hp 36.4 kW
Belt fuel use (max):	3.4 gal/hour 12.9 l/hour
Drawbar performance
Max power:	37.21 hp 27.7 kW
Gear 1 used for power test.
Max pull:	4,774 lbs 2165 kg
Gear 1 used for pull test.

McCormick-Deering WD-40 Engine

McCormick-Deering WD-40 Engine International Harvester 7.6L 4-cyl diesel Fuel tank:31 gal
117.3 L
Aux. fuel:1.25 gal
4.7 L
Engine details ...

1935 - 1940

Standard-tread tractor

Engine Detail

Engine Detail
International Harvester
diesel
4-cylinder 8-valve
liquid-cooled vertical I-head
Displacement:	460.7 ci 7.6 L
Bore/Stroke:	4.75x6.50 inches 121 x 165 mm
Air cleaner:	oil bath
Compression:	17:1
Rated RPM:	1100
Starter type:	hand-cranked gasoline-ignition
Coolant capacity:	56 qts 53.0 L