Allis Chalmers WD

Allis Chalmers WD Technical Specifications

Allis Chalmers WD is a Row-Crop tractor that was produced by the John Deere between 1948 – 1953.

Below you will find detailed technical specifications for Allis Chalmers WD covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.

Allis Chalmers WD Production

Manufacturer: Allis Chalmers
Type: Row-Crop tractor
Factory: West Allis, Wisconsin, USA
Total built: 146,125
Original price: $1,830
The Allis-Chalmers WD featured Two-Clutch Power Control and power-shifted rear wheels. The dual clutch system used a foot-operated dry clutch to disconnect the PTO and driveline from the engine. A hand-operated wet clutch allowed the PTO to operate while the tractor was slowed or stopped.

Allis Chalmers WD Power

Drawbar (claimed): 19 hp
14.2 kW
PTO (claimed): 26 hp
19.4 kW
Drawbar (tested): 30.23 hp
22.5 kW
Belt (tested): 34.63 hp
25.8 kW

Allis Chalmers WD Electrical

Ground: positive
Charging system: Delco generator
Battery volts: 6

Allis Chalmers WD Mechanical

Chassis: 4×2 2WD
Steering: manual worm and horizontal sector
Brakes: manual external compression band type
Cab: Open operator station.
Transmission: 4-speed non-synchronized gear


Fuel: 15 gal
56.8 L
Hydraulic system: 1.25 gal
4.7 L


Type: open center
Capacity: 1.25 gal
4.7 L
Pressure: 1200 psi
82.7 bar
Valves: 1*Optional

Tracktor Hitch

Rear Type: Single Hitch Point

Power Take-off (PTO)

Rear PTO: transmission
Rear RPM: 540

Title serial numbers

Location: The WD serial number is stamped into the rear of the transmission case on the left side.

photo of WD serial number

1948: 7
1949: 9250
1950: 35445
1951: 72328
1952: 105182
1953: 131243

how to read serial numbers…

What year is my Allis Chalmers WD? Serial Number Decoder

The serial number list shows the first tractor built in each year. The other tractors for that year will have successively higher numbers. Your serial number should be between two of the stated numbers.

The list only includes the numbers of the first tractors produced in each year. Your serial should be somewhere between two numbers.Unless you happen to be the first person to own a tractor, your number will not appear on the list.

Allis Chalmers WD Engine detail

Engine Detail
Allis Chalmers
tractor fuel
4-cylinder 8-valve
liquid-cooled vertical I-head
Displacement: 201 ci
3.3 L
Bore/Stroke: 4.00×4.00 inches
102 x 102 mm
Compression: 4.5:1
Rated RPM: 1400
Firing order: 1-2-4-3
Starter: electric
  hand crank
Starter volts: 6
Coolant capacity: 14 qts
13.2 L

Allis Chalmers WD Transmission overview

Engine Oil

Type: non-synchronized gear
Gears: 4 forward and 1 reverse

Allis Chalmers WD Dimensions

Wheelbase: 88.1 inches
223 cm
Length: 127 inches
322 cm
Height: 81.5 inches
207 cm
Operating weight: 3500 lbs
1587 kg
Ballasted weight: 5050 lbs
2290 kg
Rear tread: 55.6 to 90.1 inches
141 to 228 cm

Allis Chalmers WD Tests

Nebraska Tractor Test 399

Nebraska Tractor Test 399
Tractor fuel 4-speed 2WD
July 16 – 30, 1948
Link: Nebraska Tractor Test 399 file
Belt power (max): 26.14 hp
19.5 kW
Belt fuel use (max): 2.7 gal/hour
10.2 l/hour
Drawbar performance
Max power: 24.31 hp
18.1 kW
Gear 2 used for power test.
Max pull: 3,423 lbs
1552 kg
Gear 1 used for pull test.

Nebraska Tractor Test 440

Nebraska Tractor Test 440
Gasoline 4-speed 2WD
May 17 – June 1, 1950
Link: Nebraska Tractor Test 440 file
Belt power (max): 34.63 hp
25.8 kW
Belt fuel use (max): 3.2 gal/hour
12.1 l/hour
Drawbar performance
Max power: 30.23 hp
22.5 kW
Gear 3 used for power test.
Max pull: 4,304 lbs
1952 kg
Gear 1 used for pull test.


Is Allis Chalmers WD a good tractor?

The Allis Chalmers WD is one of the great tractors in the Allis Chalmers stable, and it has earned Allis Chalmers a fantastic reputation.

How much oil does a Allis Chalmers WD take?

Check out the Allis Chalmers WD oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.

Do tractors have VIN numbers?

Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.

What was the last year Allis Chalmers made the WD?

The Allis Chalmers WD was an agricultural tractor model made from 1948 – 1953

Where is the serial number on a Allis Chalmers WD?

Lookup the wd serial number is stamped into the rear of the transmission case on the left side.

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