| Manufacturer |
McCormick-Deering |
| Price |
3,300(USD) |
| Model |
W-9 |
| Equipment Type |
Standard-Tread Tractors |
| Factory |
Melrose Park, Illinois, USA |
VARIANTS
NEBRASKA TRACTOR TEST 369 2
| Description |
Gasoline 5-speed 2WD May 21 - June 17, 1941 Link: Nebraska Tractor Test 369 file Drawbar performance Gear 3 used for power test. Gear 1 used for pull test |
| Belt power (max) |
49.40hp / 36.8kW |
| Belt fuel use (max) |
4.2gal/hour / 15.9l/hour |
| Max power |
44.15hp / 32.9kW |
| Max pull |
6,414lbs / 2909kg |
NEBRASKA TRACTOR TEST 371 2
| Description |
Distillate 5-speed 2WD June 4 - 17, 1941 Link: Nebraska Tractor Test 371 file Drawbar performance Gear 3 used for power test. Gear 1 used for pull test |
| Belt power (max) |
46.36hp / 34.6kW |
| Belt fuel use (max) |
4.3gal/hour / 16.3l/hour |
| Max power |
42.67hp / 31.8kW |
| Max pull |
6,577lbs / 2983kg |
MCCORMICK-DEERING W-9 POWER
| Drawbar (claimed) |
35hp / 26.1kW |
| Belt (claimed) |
45hp / 33.6kW |
| Plows |
4 |
| Drawbar (tested) |
44.15hp / 32.9kW |
| Belt (tested) |
49.40hp / 36.8kW |
ENGINES OVERVIEW
The McCormick-Deering W-9 features a robust 5.5L four-cylinder engine available in both gasoline and distillate fuel options, providing versatility in operation. Its power output and torque characteristics make it suitable for heavy-duty field tasks, while the choice of fuel can improve efficiency in specific scenarios. However, the tractor’s weight and size may pose maneuverability challenges in tighter agricultural environments.
| Description |
International Harvester 5.5L 4-cyl gasoline/International Harvester 5.5L 4-cyl distillate |
ENGINE DETAIL 1
The McCormick-Deering W-9 tractor features a robust 334.5ci (5.5L) 4-cylinder gasoline engine with a low compression ratio of 5.4:1, optimizing fuel consumption but limiting power output. With a bore/stroke ratio of 4.40x5.50 inches, the engine provides a balanced mix of torque and efficiency, peaking at a rated RPM of 1500, suitable for low-speed operations like plowing. The 44-quart coolant capacity aids in effective temperature regulation during extended use, but operators must ensure regular coolant checks to avoid overheating, especially under heavy load scenarios.
| Description |
International Harvester gasoline 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 |
334.5ci / 5.5L |
| Bore/Stroke |
4.40x5.50inches / 112x 140 mm |
| Compression |
5.4:1 |
| Rated RPM |
1500 |
| Coolant capacity |
44qts / 41.6L |
ENGINE DETAIL 2
The McCormick-Deering W-9 tractor features a robust 4-cylinder liquid-cooled all-fuel engine with a displacement of 334.5 ci, offering versatility in fuel options, making it particularly suitable for low-octane conditions. With a bore and stroke of 4.40 x 5.50 inches and a rated RPM of 1500, it is designed for consistent, reliable performance in agricultural applications. However, the reliance on distillate fuel may pose challenges in fuel availability and efficiency compared to modern gasoline engines.
| Description |
International Harvester distillate 4-cylinder liquid-cooled 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 |
334.5ci / 5.5L |
| Bore/Stroke |
4.40x5.50inches / 112x 140 mm |
| Rated RPM |
1500 |
| Coolant capacity |
40qts / 37.9L |
MCCORMICK-DEERING W-9 ENGINES
The McCormick-Deering W-9 features a robust International Harvester 5.5L 4-cylinder engine available in both gasoline and distillate variants, offering versatility in fuel choice but potentially varying efficiency. With a substantial 36-gallon fuel tank, the tractor is well-suited for prolonged operations in agricultural settings, reducing downtime for refueling. However, the auxiliary fuel tank's limited capacity may necessitate planning for tractor use in scenarios where extended runtime without refueling is critical.
| Description |
International Harvester 5.5L 4-cyl gasoline International Harvester 5.5L 4-cyl distillate |
| Fuel tank |
36gal / 136.3L |
| Aux. fuel |
0.875gal / 3.3L |
TRANSMISSION
The McCormick-Deering W-9 features a sliding gear transmission with 5 forward and 1 reverse gear, providing a versatile range of speeds for various agricultural tasks. The limitation of a locked-out fifth gear on steel-wheeled models can enhance traction but may reduce top speed and transport efficiency. Operators should consider this in scenarios requiring road travel or faster field deployment.
| Type |
sliding gear |
| Gears |
5 forward and 1 reverse |
| Description |
Fifth gear was locked out on tractors equipped with steel wheels. |
MECHANICAL
The McCormick-Deering W-9 features a 4x2 2WD chassis, making it best suited for flat terrain and light field applications, but it may struggle with traction in muddy or hilly conditions. Its manual worm-type steering provides precision but may require more physical effort compared to modern power steering systems. With a 5-speed sliding gear transmission, operators can select optimal speeds for varied tasks, though the absence of a cab limits operator comfort and protection from environmental elements.
| Chassis |
4x2 2WD |
| Steering |
manual worm-type gear |
| Brakes |
differential external contracting band |
| Cab |
Open operator station |
| Transmission |
5-speed sliding gear |
MCCORMICK-DEERING W-9 TIRES
The McCormick-Deering W-9 tractor features a robust design with a front tire size of 30x6 (steel) and a rear tire size of 14-32, providing good traction for agricultural tasks. Its weight distribution and larger rear tires are advantageous for plowing and heavy-duty fieldwork, allowing for increased stability and better soil penetration. However, the steel front tires may present challenges in terms of ride comfort and ground damage in softer soils.
| Ag front |
30x6 (steel)/7.50-18 |
| Ag rear |
14-32 |
DIMENSIONS
| Length |
134.25inches / 340cm |
| Width |
68.5inches / 173cm |
| Height |
66inches / 167cm |
MCCORMICK-DEERING W-9 WEIGHT
| Shipping |
5,950lbs / 2698kg |
| Operating |
6,350lbs / 2880kg |
| Ballasted |
10,090lbs / 4576kg |
DIMENSIONS & TIRES
The McCormick-Deering W-9 tractor's weight range of 5,950 to 6,350 pounds provides stability for heavy-duty tasks, making it suitable for plowing and tilling in varied soil conditions. The front tire size of 30x6 improves maneuverability, while the large 48x12 rear tires enhance traction and support under heavy loads. However, the tractor's size may limit its use in smaller fields or gardens where tighter turns are necessary.
| Weight |
5950 to 6350 pounds |
| Front tire |
30x6 |
| Rear tire |
48x12 |
W-9 SERIAL NUMBERS
| Location |
Serial number plate on the right side of the McCormick-Deering W-9, ahead of the belt pulley. |
| 1940 |
WCB501 |
| 1941 |
WCB578 |
| 1942 |
WCB3003 |
| 1943 |
WCB3651 |
| 1944 |
WCB5501 |
| 1945 |
WCB11459 |
| 1946 |
WCB17294 |
| 1947 |
WCB22715 |
| 1948 |
WCB29207 |
| 1949 |
WCB36159 |
| 1950 |
WCB45551 |
| 1951 |
WCB51739 |
| 1952 |
WCB59407 |
| 1953 |
WCB64014 |
| 1954 |
WCB67969 |
ELECTRICAL
