McCormick-Deering WD-6

The McCormick-Deering WD-6 is a tractor produced by Mccormick Deering. It is equipped with a 247.7 ci 4.1 L engine. The rated power output is 34.75 hp 25.9 kW. Transmission: 5 forward and 1 reverse. Operating weight: 4350 lbs 1973 kg.

Overview

	1940 - 1952 Standard-tread tractor
1940 - 1952
Standard-tread tractor

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

Variants
ID-6	industrial
MD	row-crop
W-6	gasoline 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 ...

McCormick-Deering WD-6 Transmission
5-speed gear
Transmission details ...

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
Performance test details ...

Mechanical
Two-wheel drive
Manual steering
Open operator station.

Power Take-off (PTO)
Rear PTO	transmission
Rear PTO Type	540

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 ...

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

References
Three New McCormick-Deering Standard Tractors published in 1940, by International Harvester
McCormick-Deering Standard Tractors published in 1946, by International Harvester
McCormick Standard Tractors published by International Harvester
General Line Catalog published in 1949, by International Harvester

Engine

Engine Detail — 247.7 ci / 4.1 L Diesel

Manufacturer	International Harvester
Fuel Type	Diesel
Configuration	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

Transmission

Transmission — 5 forward and 1 reverse gear

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

Dimensions

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
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
Shipping weight	4350 lbs 1973 kg
Front tread	46.75 inches 118 cm
Rear tread	53 inches 134 cm

Tests

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.

Photos

McCormick-Deering WD-6 tractor photo