McCormick-Deering

McCormick-Deering WD-6

The McCormick-Deering WD-6 is a standard-tread farm tractor produced from 1940 to 1952 by McCormick-Deering, a part of International Harvester. It was built in Rock Island, Illinois, USA. The WD-6 features a 4.1L 4-cylinder diesel engine, a 5-speed gear transmission, and two-wheel drive with manual steering. It has an open operator station and a rear PTO with a 540 rpm type. The tractor's power ranges from 31.4 hp drawbar (claimed) to 36.4 hp belt (claimed). Dimensions include a 76-inch wheelbase, 124.4-inch length, and a shipping weight of 4350 lbs. Variants include the industrial ID-6, row-crop MD, and gasoline engine W-6. The WD-6 was succeeded by the Super WD-6 model produced from 1952 to 1954.

Power40 hp[B]

Founded1940 - 1952

ModelWD-6

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Technical Specifications

Detailed specifications and technical data for McCormick-Deering WD-6

Power

Belt (tested)	34.75 hp (25.9 kW)
Belt (claimed)	36.4 hp (27.1 kW)
Drawbar (tested)	31.02 hp (23.1 kW)
Drawbar (claimed)	31.4 hp (23.4 kW)

Tires

Ag rear	42-10 (steel)
Ag front	22.50-4 (steel)
Ag rear alternate	13.5x24
Ag front alternate	6.50x16

Engine

Type	diesel
Cooling	liquid-cooled vertical I-head
Aux. fuel	0.88 gal (3.3 L)
Cylinders	4-cylinder
Fuel tank	21 gal (79.5 L)
Rated RPM	1450
Bore/Stroke	3.875x5.25 inches (98 x 133 mm)
Compression	14.2:1
Displacement	247.7 ci (4.1 L)
Firing order	1-3-4-2
Manufacturer	International Harvester
Coolant capacity	27 qts (25.6 L)

Variants

MD	row-crop
W-6	gasoline engine
ID-6	industrial

Dimensions

Width	63 inches (160 cm)
Height	90 inches (228 cm)
Length	124.4 inches (315 cm)
Wheelbase	76 inches (193 cm)
Rear tread	53 inches (134 cm)
Front tread	46.75 inches (118 cm)
Height (hood)	59 inches (149 cm)
Shipping weight	4350 lbs (1973 kg)

Mechanical

Drive	Two-wheel drive
Steering	Manual steering
Operator station	Open operator station

Production

Type	Standard-tread tractor
Built in	Rock Island, Illinois, USA
Years made	1940 - 1952

Belt Pulley

RPM	899
Speed	2588 ft/min (788.82 meters/min)
Width	7.5 inches (19 cm)
Diameter	11 inches (27 cm)

Transmission

Type	gear
Gears	5 forward and 1 reverse
Clutch	279.4mm mechanical dry disc

WD-6 Serial Numbers

1940	WDBK 516
1941	WDBK 1225
1942	WDBK 3718
1943	----
1944	WDBK 6371
1945	WDBK 9509
1946	WDBK 14019
1947	WDBK 16811
1948	WDBK 24020
1949	WDBK 28906
1950	WDBK 35566
1951	WDBK 39443
1952	WDBK 45175
Location	Serial number plate located on the clutch housing.