Allis Chalmers WC
Power
23 hp[B] hp
Production
1933-1948
Engine
4-cylinder
Transmission
Non-synchronized gear
Drive
2WD
Introduction
Allis-Chalmers WC Row-Crop Tractor
The Allis-Chalmers WC is a row-crop tractor manufactured between 1933 and 1948 in West Allis, Wisconsin. Historically significant as the first tractor tested on rubber tires at the Nebraska Tractor Test Laboratory, this two-wheel drive machine was designed for versatility in agricultural field operations.
Engine and Performance
The tractor is powered by a liquid-cooled, 4-cylinder vertical I-head engine with a displacement of 201 cubic inches (3.3 L). It operates at a rated speed of 1300 RPM with a compression ratio of 5.0:1. The engine cooling system has a capacity of 14 quarts (13.2 L), while the oil system holds 6 quarts (5.7 L). Air intake is managed through an oil bath air cleaner.
Transmission and Drivetrain
The powertrain features a non-synchronized gear transmission providing 4 forward and 1 reverse gear. Operation is facilitated by a gearshift lever and a foot-operated clutch. It includes a rear power take-off (PTO) with a 535 type transmission-driven system. The braking system consists of differential hand-operated mechanical drum brakes.
Electrical and Operator Station
The electrical system relies on a generator and a 6-volt battery with a 95 AH capacity. The operator station is of an open design, featuring a steel pan seat. Starting is primarily achieved via a manual crank, complemented by an electric starting system.
Dimensions and Chassis
The tractor measures 136 inches (345 cm) in length and 76 inches (193 cm) in width. It provides a ground clearance of 29 inches (73 cm) at the rear axle, with an adjustable rear tread ranging from 65 to 76 inches (165 to 193 cm). The machine was offered with various wheel configurations, including steel wheels or agricultural rubber tires.
Conclusion
With 178,202 units built during its production run, the Allis-Chalmers WC remains a hallmark of mid-20th-century agricultural machinery. Its historical transition to rubber tires and robust mechanical design make it a staple for collectors and enthusiasts of vintage farming equipment.
Allis Chalmers WC Manuals & Documentation
Download the manuals and documentation available for the Allis Chalmers WC: repair and workshop manuals, operator's handbooks, spare-parts catalogs and technical leaflets — free PDF files.
Archive documentation provided for reference, hosted by Tractor-Info.
Production Information of Allis Chalmers, WC
- The Allis-Chalmers WC was the first tractor tested on rubber tires at Nebraska. The WC was styled in 1938, starting at serial number WC74330. The styled WC featured a rounded radiator and larger tires.
- Row-Crop tractor
- Built in West Allis, Wisconsin, USA
| Manufacturer | Allis Chalmers |
|---|---|
| Total built | 178,202 |
Dimension and Tires Information of Allis Chalmers, WC
| Length | 136 inches [345 cm] |
|---|---|
| Rear tread | 65 to 76 inches [165 to 193 cm] |
| Ground clearance | 29 inches (rear axle) [73 cm] |
| Width | 76 inches [193 cm] |
| Height | 63 inches [160 cm] |
| Ag front | 24x4 steel |
|---|---|
| Ag rear | 11.25x24 |
| Ag rear | 40x6 steel |
| Ag front | 5.25-17 |
Engine Specifications of Allis Chalmers, WC
- Liquid-cooled vertical I-head
- 4-cylinder
| Point gap | 0.020 inches [0.508 mm] |
|---|---|
| Sparkplug gap | 0.030 inches [0.762 mm] |
| Air cleaner | Oil bath |
| Intake valve clearance | 0.010 inches (hot) [0.254 mm] |
| Rated RPM | 1300 |
| Firing order | 1-2-4-3 |
| Compression | 5.0:1 |
| Displacement | 201 ci [3.3 L] |
| Fuel use | 2.861 gal/hour [10.8 l/hour] |
| Oil capacity | 6 qts [5.7 L] |
| Bore/Stroke | 4.00x4.00 inches [102 x 102 mm] |
| Coolant capacity | 14 qts [13.2 L] |
| Exhaust valve clearance | 0.010 inches (hot) [0.254 mm] |
| Exhaust valve clearance | 0.010 inches (hot) [0.254 mm] |
| Exhaust valve clearance(optional) | Electric |
| Starter type | Manual crank |
Transmission Information of Allis Chalmers, WC
Transmission variants 1
- Operated via gearshift lever and foot clutch. Fourth gear was not recommended for tractors equipped with steel wheels.
| 32oF [0oC]↓ | : SAE90 |
|---|---|
| Type | Non-synchronized gear |
| Oil type | 32oF [0oC]↑ : SAE140 32oF [0oC]↓ : SAE90 |
| Oil type(optional) | 5 qts (with PTO) [4.7 L] |
| Gears | 4 forward and 1 reverse |
| 32oF [0oC]↑ | : SAE140 |
| Oil capacity | 4 qts [3.8 L] |
Mechanical Specs of Allis Chalmers, WC
- Two-wheel drive
- Open operator station with steel pan seat.
- Differential hand-operated mechanical drum brakes
| Steering | Manual |
|---|
Power Information of Allis Chalmers, WC
| Rear PTO | Transmission |
|---|---|
| Rear PTO Type | 535 |
Electrical System of Allis Chalmers, WC
| Charging system | Generator |
|---|---|
| Battery volts | 6 |
| Battery AH | 95 |
Where it sits
With 23 hp[B] HP, the Allis Chalmers WC sits between C (21 HP) and WF (24 HP) in Allis Chalmers's range. Its power puts it in the 20th percentile of 1930s models in our database (235 machines).
Frequently asked questions
How much horsepower does the Allis Chalmers WC have?
The Allis Chalmers WC delivers 23 hp[B] HP.
What years was the Allis Chalmers WC produced?
The Allis Chalmers WC was produced in 1933-1948.
What engine does the Allis Chalmers WC have?
The Allis Chalmers WC is powered by a 4-cylinder engine.
What transmission does the Allis Chalmers WC use?
The Allis Chalmers WC uses a Non-synchronized gear transmission.
Is the Allis Chalmers WC 4WD?
The Allis Chalmers WC is available in 2WD.