Introduction
Wallis OK 15-27: Standard-Tread Agricultural Tractor
The Wallis OK 15-27 is a standard-tread agricultural tractor produced between 1923 and 1927 in Racine, Wisconsin, USA. Manufactured by Wallis, a division of J.I. Case Plow Works, this machine represents the mechanical engineering standards of the early 20th-century farm equipment sector.
Engine and Performance
The tractor is powered by a 4-cylinder gasoline engine with a displacement of 326.3 cubic inches (5.3 liters). It utilizes liquid cooling and operates at a rated speed of 1000 RPM. The engine produces 30 horsepower, which was standard for mid-range agricultural tasks of that era. The starter system relies on a manual hand-crank mechanism.
Transmission and Handling
The drivetrain features a manual gear transmission providing two forward speeds and one reverse speed. Steering is purely manual, and the tractor utilizes a two-wheel drive configuration, consistent with the standard-tread design intended for general field work.
Physical Specifications
The machine has a total length of 132 inches (335 cm), a width of 61 inches (154 cm), and a height of 65 inches (165 cm). It weighs 3,630 lbs (1646 kg). The tractor is equipped with steel agricultural wheels, featuring 30x8 tires in the front and 48x12 tires in the rear.
Conclusion
The Wallis OK 15-27 is a representative example of 1920s tractor design, built for durability and utility in standard agricultural operations. Its simple mechanical configuration and robust construction make it a significant model for historians and collectors of vintage farm machinery.
Production Information of Wallis, OK 15-27
- Standard-tread tractor
- Built in Racine, Wisconsin, USA
| Manufacturer | Wallis (a part of J.I. Case Plow Works) |
|---|
Dimension and Tires Information of Wallis, OK 15-27
| Length | 132 inches [335 cm] |
|---|---|
| Weight | 3,630 lbs [1646 kg] |
| Width | 61 inches [154 cm] |
| Height | 65 inches [165 cm] |
| Ag front | 30x8 (steel) |
|---|---|
| Ag rear | 48x12 (steel) |
Engine Specifications of Wallis, OK 15-27
- Wallis
- Liquid-cooled
- Gasoline
- 4-cylinder
| Rated RPM | 1000 |
|---|---|
| Displacement | 326.3 ci [5.3 L] |
| Starter type | Hand-crank |
| Bore/Stroke | 4.25x5.75 inches [108 x 146 mm] |
Transmission Information of Wallis, OK 15-27
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 2 forward and 1 reverse |
Mechanical Specs of Wallis, OK 15-27
- Two-wheel drive
| Steering | Manual |
|---|
Power Information of Wallis, OK 15-27
- Https://www.tractordata.com/farm-tractors/007/1/2/7126-wallis-ok-15-27-tests.html
Where it sits
With 30 hp[B] HP, the Wallis OK 15-27 sits between K 15-25 (27 HP) and 20-30 (33 HP) in Wallis's range. Its power puts it in the 40th percentile of 1920s models in our database (181 machines).
Frequently asked questions
How much horsepower does the Wallis OK 15-27 have?
The Wallis OK 15-27 delivers 30 hp[B] HP.
What years was the Wallis OK 15-27 produced?
The Wallis OK 15-27 was produced in 1923-1927.
What engine does the Wallis OK 15-27 have?
The Wallis OK 15-27 is powered by a Gasoline, 4-cylinder engine.
What transmission does the Wallis OK 15-27 use?
The Wallis OK 15-27 uses a Gear transmission.
How much does the Wallis OK 15-27 weigh?
The Wallis OK 15-27 weighs 3,630 lbs [1646 kg].
Is the Wallis OK 15-27 4WD?
The Wallis OK 15-27 is available in 2WD.