McCormick-Deering WD-6 tractor specifications

1940 - 1952

1940 - 1952 Standard-tread tractor

Series:

Series:WD-6Super WD-6 ↓

1952 - 1954

Production

Production
Manufacturer:	McCormick-Deering (a part of International Harvester)
Factory:	Rock Island, Illinois, USA

Variants

Variants
Super W-6:	gasoline engine
WD6-TA:	Torque Amplifier transmission

McCormick-Deering Super WD-6 Power

McCormick-Deering Super WD-6 Power
Drawbar (claimed):	33 hp 24.6 kW
PTO (claimed):	41 hp 30.6 kW
Drawbar (tested):	38.15 hp 28.4 kW
Belt (tested):	46.84 hp 34.9 kW
power test details ...

McCormick-Deering Super WD-6 Engine

McCormick-Deering Super WD-6 Engine
International Harvester 4.3L 4-cyl diesel
Fuel tank:	20.5 gal 77.6 L
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
Brakes:	disc
Cab:	Open operator station.
Transmissions:	5-speed gear
	10-speed two-speed power shift
Transmission details ...

Dimensions & Tires

Dimensions & Tires
Weight:	5,500 lbs 2494 kg
Front tire:	6.00x16
Rear tire:	15.00x30
Full dimensions and tires ...

Super WD-6 Serial Numbers

Super WD-6 Serial Numbers
Location:	Serial number on the left side of the Super WD-6, on the clutch housing.
photo of Super WD-6 serial number
1952:	501
1953:	2277
1954:	8997
Final:	9084
how to read serial numbers...

Production

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

Variants

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

1941 - 1952

Row-Crop tractor

Series:

Series:	MD
	Super MD ↓

Production

Production
Manufacturer:	Farmall (a part of International Harvester)
Type:	Row-Crop tractor
Total built:	18,253
Original price:	$2,400 (1952)
The Farmall MD was the diesel version of the M. The MD was started on gasoline, by pulling a lever which enlarged the combustion chamber (to lower the compression) and closed the circuit for the spark plugs. After the engine was warm, it was switched over to diesel.

Variants

Variants
WD-6:	standard-front
ID-6:	industrial
M:	gasoline engine

Farmall MD Power

Farmall MD Power
PTO (claimed):	35 hp 26.1 kW
Plows:	3 (14-inch)
Drawbar (tested):	33.58 hp 25.0 kW
Belt (tested):	38.21 hp 28.5 kW
power test details ...

Farmall MD Engine

Farmall MD Engine
International Harvester 4.1L 4-cyl diesel
Fuel tank:	20 gal 75.7 L
Aux. fuel:	1 gal 3.8 L
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
Steering:	manual
Brakes:	differential mechanical contracting band
Cab:	Open operator station.
Transmission:	5-speed sliding gear
Transmission details ...

Hydraulics

Hydraulics
Type:	Lift-All, transmission-driven
Pressure:	500 psi 34.5 bar (early)
	800 psi 55.2 bar (late)

Power Take-off (PTO)

Power Take-off (PTO)
Rear RPM:	540

Dimensions & Tires

Dimensions & Tires
Weight:	5,000 lbs 2268 kg
Front tire:	6.50-16
Rear tire:	12-38
Full dimensions and tires ...

MD Serial Numbers

MD Serial Numbers
photo of MD serial number
1941:	25371
1942:	50988
1943:	60011
1944:	67424
1945:	88085
1946:	105564
1947:	122823
1948:	151708
1949:	180514
1950:	213579
1951:	247518
1952:	290923
how to read serial numbers...

Electrical

Electrical
Ground:	positive
Batteries:	2
Battery volts:	6

McCormick-Deering WD-6 Power

McCormick-Deering WD-6 Power Drawbar (claimed):31.4 hp
23.4 kW
Belt (claimed):36.4 hp
27.1 kW
Drawbar (tested):31.02 hp
23.1 kW
Belt (tested):34.75 hp
25.9 kW
power test details ...

1940 - 1952

Standard-tread tractor

Series:

Series:	WD-6
	Super WD-6 ↓

Nebraska Tractor Test 356

Nebraska Tractor Test 356
Diesel 5-speed 2WD September 20 - 27, 1940 Link: Nebraska Tractor Test 356 file
Belt power (max):	34.75 hp 25.9 kW
Belt fuel use (max):	2.3 gal/hour 8.7 l/hour
Drawbar performance
Max power:	31.02 hp 23.1 kW
Gear 3 used for power test.
Max pull:	4806 lbs 2180 kg
Gear 1 used for pull test.

McCormick-Deering WD-6 Engine

McCormick-Deering WD-6 Engine International Harvester 4.1L 4-cyl diesel Fuel tank:21 gal
79.5 L
Aux. fuel:0.88 gal
3.3 L
Engine details ...

1940 - 1952

Standard-tread tractor

Series:

Series:	WD-6
	Super WD-6 ↓

Engine Detail

Engine Detail
International Harvester
diesel
4-cylinder
liquid-cooled vertical I-head
Displacement:	247.7 ci 4.1 L
Bore/Stroke:	3.875x5.25 inches 98 x 133 mm
Compression:	14.2:1
Rated RPM:	1450
Firing order:	1-3-4-2
Coolant capacity:	27 qts 25.6 L

Mechanical

Mechanical Chassis:4x2 2WD
Steering:manual
Cab:Open operator station.
Transmission:5-speed gear
Transmission details ...

1940 - 1952

Standard-tread tractor

Series:

Series:	WD-6
	Super WD-6 ↓

Transmission

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

Speeds

Speeds

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:transmission
Rear RPM:540

Dimensions & Tires

Dimensions & Tires Wheelbase:76 inches
193 cm
Weight:4350 lbs
1973 kg
Front tire:22.50-4
Rear tire:42-10
Full dimensions and tires ...

1940 - 1952

Standard-tread tractor

Series:

Series:	WD-6
	Super WD-6 ↓

McCormick-Deering WD-6 Tires

McCormick-Deering WD-6 Tires
Ag front:	22.50-4 (steel)
Ag rear:	42-10 (steel)
Ag front:	6.50x16
Ag rear:	13.5x24

Dimensions

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

WD-6 Serial Numbers

WD-6 Serial Numbers Location:Serial number plate located on the clutch housing.
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

how to read serial numbers...