McCormick-Deering W-9
The McCormick-Deering W-9 is a tractor produced by Mccormick Deering. It is equipped with a 334.5 ci 5.5 L engine. Transmission: 5 forward and 1 reverse. Operating weight: 5950 to 6350 pounds.
Fuel & Capacities
Gasoline
Transmission
5 forward and 1 reverse
Operating Weight
5950 to 6350 pounds
Overview
![]() | 1940 - 1953
Standard-tread tractor |
|---|
Production | |
|---|---|
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. | |
Variants | |
|---|---|
W-9 | gasoline |
WD-9 | diesel |
I-9 | industrial |
McCormick-Deering W-9 Transmission | |
|---|---|
5-speed sliding gear | |
Transmission details ... |
McCormick-Deering W-9 Power | |
|---|---|
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 |
Performance test details ... | |
Mechanical | |
|---|---|
Two-wheel drive | |
Steering | manual worm-type gear |
Differential external contracting band brakes | |
Open operator station. | |
Dimensions & Tires | |
|---|---|
Weight | 5950 to 6350 pounds |
Front tire | 30x6 |
Rear tire | 48x12 |
Full dimensions and tires ... | |
Electrical | |
|---|---|
Ground | positive |
References | |
|---|---|
![]() | |
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 |
Engine
Engine options | |
|---|---|
International Harvester 5.5L 4-cyl gasoline | |
International Harvester 5.5L 4-cyl distillate |
Engine Detail — 334.5 ci / 5.5 L Gasoline
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 |
Engine Detail — 334.5 ci / 5.5 L Gasoline
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 |
Transmission
Transmission — 5 forward and 1 reverse sliding gear
Type | sliding gear |
Gears | 5 forward and 1 reverse |
Fifth gear was locked out on tractors equipped with steel wheels. | |
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Dimensions
McCormick-Deering W-9 Tires | |
|---|---|
Ag front | 30x6 (steel) |
7.50-18 | |
Ag rear | 48x12 (steel) |
14-34 | |
15-34 | |
Ag rear | 14-32 |
Dimensions | |
|---|---|
Length | 134.25 inches
340 cm |
Width | 68.5 inches
173 cm |
Height | 66 inches
167 cm |
McCormick-Deering W-9 Weight | |
|---|---|
Shipping | 5,950 lbs
2698 kg |
Operating | 6,350 lbs
2880 kg |
Ballasted | 10,090 lbs
4576 kg |
Tests
Tractor Tests | |
|---|---|
NTTL 369: gasoline 5-speed 2WD | |
NTTL 371: distillate 5-speed 2WD |
Nebraska Tractor Test 369 | |
|---|---|
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. | |
Nebraska Tractor Test 371 | |
|---|---|
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. | |
Photos
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Mccormick Deering McCormick-Deering W-9.
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Mccormick Deering McCormick-Deering W-9 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Mccormick Deering McCormick-Deering W-9.
Converted Equivalents:
Horsepower (HP)0 hp
Kilowatts (kW)0 kW
Metric Horsepower (PS / CV)0 PS
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