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Years in Production / 1940–1952
McCormick-Deering
WD-6
Explore the specifications, hardware, and original references for the McCormick-Deering WD-6.

No photo
40hp
Engine estimate · from belt
2WD Only
Drive
1940–1952
Production years
McCormick-Deering
Manufacturer
WD-6 / 01
At a glance
Production
Standard-tread tractor
Built in Rock Island, Illinois, USA
- Manufacturer
- McCormick-Deering (a part of International Harvester)
Pto
- Rear Pto
- transmission
- Rear Type
- 540
Belt Pulley
- Diameter
- 11 inches27 cm
- Width
- 7.5 inches19 cm
- Rpm
- 899
- Speed
- 2588 ft/min788.82 meters/min
Mechanical
Two-wheel drive
Manual steering
Open operator station.
WD-6 / 02
Under the hood
Engine Detail
International Harvester
diesel
4-cylinder
liquid-cooled vertical I-head
- Displacement
- 247.7 ci4.1 L
- Bore Stroke
- 3.875x5.25 inches98 x 133 mm
- Compression Ratio
- 14.2:1
- Rated Rpm
- 1450
- Firing Order
- 1-3-4-2
- Coolant Capacity
- 27 qts25.6 L
- Fuel Type
- diesel
- Cylinders
- 4
- Cooling
- liquid-cooled vertical I-head
Engine Options
International Harvester 4.1L 4-cyl diesel
- Fuel Tank
- 21 gal79.5 L
- Aux Fuel
- 0.88 gal3.3 L
WD-6 / 03
Gears & controls
Transmission
- Transmission Type
- gear
- Gears
- 5 forward and 1 reverse
- Clutch
- 279.4mm mechanical dry disc
WD-6 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 124.4 in315 cm
- Width
- 63 in160 cm
- Height
- 90 in228 cm
- Wheelbase
- 76 in193 cm
- Front tread
- 46.75 in118 cm
- Rear tread
- 53 in134 cm
Dimensions And Tires
- Wheelbase
- 76 inches193 cm
- Weight
- 4350 lbs1973 kg
- Front Tire
- 22.50-4
- Rear Tire
- 42-10
Tires And Tracks
- Front Ag
- 22.50-4 (steel)
- Front Ag
- 6.50x16
- Rear Ag
- 42-10 (steel)
- Rear Ag
- 13.5x24
WD-6 / 05
Tests (NTTL)
Nebraska Tractor Test 356
Diesel 5-speed 2WDSeptember 20 - 27, 1940
Drawbar performance
Gear 3 used for power test.
Gear 1 used for pull test.
- Id
- 356
- Belt Power Max
- 34.75 hp25.9 kW
- Belt Fuel Use Max
- 2.3 gal/hour8.7 l/hour
- Max Power
- 31.02 hp23.1 kW
- Max Pull
- 4806 lbs2180 kg