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Tractor · 1940Unverified

McCormick-Deering W-9

Name: McCormick-Deering W-9
Brand: McCormick-Deering

McCormick-Deering W-9 — Standard-tread tractor · 35 hp. Reference specifications; pending source verification.

The McCormick-Deering W-9 is a tractor with a rated output of approximately 35 hp, positioned at the lower end of its class. Produced from 1940 to 1953, this model features a 4-cylinder diesel liquid-cooled engine, paired with two-wheel drive and a 5-speed gearbox. It has a listed operating weight of 5950 to 6350 pounds. The W-9 is suitable for operations of up to 200 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

35 hp

Max power

32.9 kW

Weight

5950 to 6350 pounds

Catalogue coverage

Variants represented

Richest spec table

89 rows

Recorded power

35 hp

Transmissions

5-speed sliding gear

Production years

1940-1953

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerMcCormick-Deering (a part of International Harvester)Reference

Standard-tread tractorReference

FactoriesMilwaukee, Wisconsin, USAReference

FactoriesMelrose Park, Illinois, USAReference

Total built67,418Reference

Original price$3,300Reference

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.Reference

Two-wheel driveReference

Steeringmanual worm-type gearReference

Differential external contracting band brakesReference

Open operator station.Reference

Variants

W-9gasolineReference

WD-9dieselReference

I-9industrialReference

Engine

International Harvester 5.5L 4-cyl gasolineReference

International Harvester 5.5L 4-cyl distillateReference

Fuel tank136.3 LReference

Aux. fuel3.3 LReference

Drawbar (claimed)26.1 kWReference

Belt (claimed)33.6 kWReference

Plows4Reference

Drawbar (tested)32.9 kWReference

Belt (tested)36.8 kWReference

International HarvesterReference

gasolineReference

4-cylinderReference

liquid-cooled vertical I-headReference

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

Displacement5.5 LReference

Bore/Stroke112 x 140 mmReference

Compression5.4:1Reference

Rated RPM1500Reference

Coolant capacity41.6 LReference

distillateReference

liquid-cooledReference

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.Reference

Coolant capacity37.9 LReference

Belt power (max)36.8 kWReference

Max power32.9 kWReference

Belt power (max)34.6 kWReference

Max power31.8 kWReference

Transmission

5-speed sliding gearReference

Typesliding gearReference

Gears5 forward and 1 reverseReference

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

Dimensions

Weight5950 to 6350 poundsReference

Front tire30x6Reference

Rear tire48x12Reference

Ag front30x6 (steel)Reference

Ag front7.50-18Reference

Ag rear48x12 (steel)Reference

Ag rear14-34Reference

Ag rear15-34Reference

Ag rear14-32Reference

Length340 cmReference

Width173 cmReference

Height167 cmReference

Shipping2698 kgReference

Operating2880 kgReference

Ballasted4576 kgReference

W-9 Serial Number Location

Serial number plate on the right side of the McCormick-Deering W-9, ahead of the belt pulley.Reference

W-9 Serial Numbers

1940WCB501Reference

1941WCB578Reference

1942WCB3003Reference

1943WCB3651Reference

1944WCB5501Reference

1945WCB11459Reference

1946WCB17294Reference

1947WCB22715Reference

1948WCB29207Reference

1949WCB36159Reference

1950WCB45551Reference

1951WCB51739Reference

1952WCB59407Reference

1953WCB64014Reference

1954WCB67969Reference

FAQ: How to read a serial number table.Reference

Electrical

GroundpositiveReference

Test results

NTTL 369: gasoline 5-speed 2WDReference

NTTL 371: distillate 5-speed 2WDReference

Gasoline 5-speed 2WDMay 21 - June 17, 1941Link: Nebraska Tractor Test 369 fileReference

Belt fuel use (max)15.9 l/hourReference

Drawbar performanceReference

Gear 3 used for power test.Reference

Max pull2909 kgReference

Gear 1 used for pull test.Reference

Distillate 5-speed 2WDJune 4 - 17, 1941Link: Nebraska Tractor Test 371 fileReference

Belt fuel use (max)16.3 l/hourReference

Max pull2983 kgReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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