McCormick-Deering W-9

1940 - 1953

Standard-tread tractor

Manufacturer

McCormick-Deering (a part of International Harvester)

Standard-tread tractor

Factories

Milwaukee, Wisconsin, USA

Melrose Park, Illinois, USA

Total built

67,418

Original price

$3,300

The 9-series tractors consisted of six models, the W-9, WD-9, WR-9, WDR-9, I-9, and ID-9. The D models are diesel. The R is a rice model, with larger fenders and a hand-clutch to allow driving while standing. The I models were industrial, with different gear ratios and foot-operated throttle.

W-9

gasoline

WD-9

diesel

I-9

industrial

5-speed sliding gear

Drawbar (claimed)

35 hp 26.1 kW

Belt (claimed)

45 hp 33.6 kW

Plows

4

Drawbar (tested)

44.15 hp 32.9 kW

Belt (tested)

49.40 hp 36.8 kW

Two-wheel drive

Steering

manual worm-type gear

Differential external contracting band brakes

Open operator station.

Weight

5950 to 6350 pounds

Front tire

30x6

Rear tire

48x12

Ground

positive

Farmall Letter Series Tractors by Lee Klancher

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

International Harvester 5.5L 4-cyl gasoline

International Harvester 5.5L 4-cyl distillate

Manufacturer

International Harvester

Fuel Type

Gasoline

Configuration

4-cylinder, liquid-cooled vertical I-head

The gasoline engine was standard on the I-9, and an option on the W-9 until 1947, when it became the standard engine.

Displacement

334.5 ci 5.5 L

Bore/Stroke

4.40x5.50 inches 112 x 140 mm

Compression

5.4:1

Rated RPM

1500

Coolant capacity

44 qts 41.6 L

Manufacturer

International Harvester

Configuration

4-cylinder, liquid-cooled

distillate

The all-fuel engine was designed for tractor fuel and gasoline lower than 70 octane. It was the standard W-9 and WR-9 engine until 1947, when the gasoline engine became standard and the all-fuel engine was an option. The all-fuel engine was an option for the I-9.

Displacement

334.5 ci 5.5 L

Bore/Stroke

4.40x5.50 inches 112 x 140 mm

Rated RPM

1500

Coolant capacity

40 qts 37.9 L

Type

sliding gear

Gears

5 forward and 1 reverse

Fifth gear was locked out on tractors equipped with steel wheels.

Ag front

30x6 (steel)

7.50-18

Ag rear

48x12 (steel)

14-34

15-34

Ag rear

14-32

Length

134.25 inches 340 cm

Width

68.5 inches 173 cm

Height

66 inches 167 cm

Shipping

5,950 lbs 2698 kg

Operating

6,350 lbs 2880 kg

Ballasted

10,090 lbs 4576 kg

NTTL 369: gasoline 5-speed 2WD

NTTL 371: distillate 5-speed 2WD

Gasoline 5-speed 2WD May 21 - June 17, 1941 Link: Nebraska Tractor Test 369 file

Belt power (max)

49.40 hp 36.8 kW

Belt fuel use (max)

4.2 gal/hour 15.9 l/hour

Drawbar performance

Max power

44.15 hp 32.9 kW

Gear 3 used for power test.

Max pull

6,414 lbs 2909 kg

Gear 1 used for pull test.

Distillate 5-speed 2WD June 4 - 17, 1941 Link: Nebraska Tractor Test 371 file

Belt power (max)

46.36 hp 34.6 kW

Belt fuel use (max)

4.3 gal/hour 16.3 l/hour

Drawbar performance

Max power

42.67 hp 31.8 kW

Gear 3 used for power test.

Max pull

6,577 lbs 2983 kg

Gear 1 used for pull test.