McCormick-Deering W-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
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

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 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 ...

1935 - 1940

Standard-tread tractor

Nebraska Tractor Test 268

Nebraska Tractor Test 268
Distillate 1600rpm 3-speed 2WD August 25 - September 3, 1936 Link: Nebraska Tractor Test 268 file
Belt power (max):	45.69 hp 34.1 kW
Belt fuel use (max):	5.4 gal/hour 20.4 l/hour
Drawbar performance
Max power:	31.79 hp 23.7 kW
Gear 2 used for power test.
Max pull:	4,399 lbs 1995 kg
Gear 1 used for pull test.

Nebraska Tractor Test 269

Nebraska Tractor Test 269
Distillate 1750rpm 3-speed 2WD September 3 - 15, 1936 Link: Nebraska Tractor Test 269 file
Belt power (max):	49.76 hp 37.1 kW
Belt fuel use (max):	5.6 gal/hour 21.2 l/hour
Drawbar performance
Max power:	35.22 hp 26.3 kW
Gear 2 used for power test.
Max pull:	4,982 lbs 2259 kg
Gear 1 used for pull test.

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 ...

1935 - 1940

Standard-tread tractor

Engines overview

Engines overview
International Harvester 4.9L 6-cyl gasoline
International Harvester 4.9L 6-cyl kerosene
International Harvester 4.0L 6-cyl gasoline

Engine Detail

Engine Detail
International Harvester FBB
gasoline
6-cylinder
liquid-cooled vertical I-head
Displacement:	298.2 ci 4.9 L
Bore/Stroke:	3.75x4.50 inches 95 x 114 mm
Rated RPM:	1750
Oil capacity:	9 qts 8.5 L
Coolant capacity:	48 qts 45.4 L

Engine Detail

Engine Detail
International Harvester
kerosene
6-cylinder
liquid-cooled
Displacement:	298.2 ci 4.9 L
Bore/Stroke:	3.75x4.50 inches 95 x 114 mm
Air cleaner:	oil bath
Rated RPM:	1750

Engine Detail

Engine Detail
International Harvester
gasoline
6-cylinder
liquid-cooled
The 242ci engine was used on the early production models of the WA-40 with gasoline engine. This was later replaced with the 298ci engine.
Displacement:	242 ci 4.0 L
Bore/Stroke:	3.375x4.50 inches 86 x 114 mm
Air cleaner:	oil bath
Rated RPM:	1750

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 ...

1935 - 1940

Standard-tread tractor

Transmissions overview

Transmissions overview
3-speed unsynchronized gear
4-speed unsynchronized gear

Transmission

Transmission
Type:	unsynchronized gear
Gears:	3 forward and 1 reverse
Clutch:	dry disc

Speeds

Speeds

Transmission

Transmission
Type:	unsynchronized gear
Gears:	4 forward and 1 reverse
Clutch:	dry disc
High-speed fourth gear was only for tractors with rubber tires.

Speeds

Speeds

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 ...

1935 - 1940

Standard-tread tractor

McCormick-Deering W-40 Tires

McCormick-Deering W-40 Tires
Ag front:	34x6 (steel)
Ag rear:	50x12 (steel)

Dimensions

Dimensions
Wheelbase:	85 inches 215 cm
Length:	141.5 inches 359 cm
Width:	65.75 inches 167 cm
Height (exhaust):	73 inches 185 cm
Weight:	6100 lbs 2766 kg
Front tread:	52.25 inches 132 cm
Rear tread:	53 inches 134 cm