| Manufacturer |
Wallis |
| Price |
- |
| Model |
K 15-25 |
| Equipment Type |
Standard-Tread Tractors |
| Factory |
Racine, Wisconsin, USA |
NEBRASKA TRACTOR TEST 49
| Description |
Gasoline 2-speed 2WD/August 7 - 16, 1920/Drawbar performance |
| Belt power (max) |
29.87 hp/22.3 kW |
| Belt fuel use (max) |
3.2 gal/hour/12.1 l/hour |
| Max power |
18.58 hp/13.9 kW |
| Max pull |
2,782 lbs/1261 kg |
WALLIS K 15-25 POWER
| Drawbar (claimed) |
15 hp/11.2 kW |
| Belt (claimed) |
25 hp/18.6 kW |
| Plows |
2-3 (14 inch) |
| Drawbar (tested) |
18.58 hp/13.9 kW |
| Belt (tested) |
29.87 hp/22.3 kW |
ENGINE DETAIL
The Wallis K 15-25 tractor, powered by a 4-cylinder gasoline engine with a displacement of 326.3 ci (5.3 L), is designed for low RPM operation at 900, providing substantial torque for agricultural tasks. Notably, its bore and stroke (4.25x5.75 inches) offer a long-stroke configuration, emphasizing low-end power, though the hand-crank starter may present challenges in starting under certain conditions. Ideal for smaller farms or vintage machinery collectors, its unique specifications impart a nostalgic and mechanical appeal, but also require more physical effort for operation.
| Description |
Wallis/gasoline/4-cylinder/liquid-cooled |
| Displacement |
326.3 ci/5.3 L |
| Bore/Stroke |
4.25x5.75 inches/108 x 146 mm |
| Rated RPM |
900 |
| Starter type |
hand-crank |
WALLIS K 15-25 ENGINE
The Wallis K 15-25 tractor is powered by a 5.3L 4-cylinder gasoline engine, which offers a balance of robust torque output and relatively high RPMs, enabling efficient performance in agricultural applications. An advantage of this system is its straightforward maintenance compared to diesel engines, while a potential challenge may be fuel consumption and operational costs due to gasoline pricing volatility. Ideal for small to medium farming tasks, its versatility ranges from field plowing to light-duty hauling.
| Description |
Wallis 5.3L 4-cyl gasoline |
TRANSMISSION
The Wallis K 15-25 tractor features a simple gear setup with 2 forward and 1 reverse gear, making it suitable for light agricultural tasks where ease of operation and maneuverability are essential. The limited gear range may limit its versatility in demanding conditions, but it excels in applications requiring low-speed precision, such as in small fields or gardens. Consider its basic transmission system as both an advantage for ease of maintenance and a challenge for handling more diverse terrain or workloads.
| Type |
gear |
| Gears |
2 forward and 1 reverse |
MECHANICAL
The Wallis K 15-25 tractor features a 4x2 2WD chassis, providing basic traction suitable for lighter agricultural tasks and maneuverability on flat terrain. With manual steering, operators may experience increased workload during longer operational periods, especially in tight spaces. The 2-speed gear transmission offers limited versatility, making it more suitable for straightforward applications rather than complex or variable field conditions.
| Chassis |
4x2 2WD |
| Steering |
manual |
| Transmission |
2-speed gear |
DIMENSIONS
| Length |
132 inches/335 cm |
| Width |
61 inches/154 cm |
| Height |
65 inches/165 cm |
| Weight |
3,500 lbs/1587 kg |
DIMENSIONS & TIRES
The Wallis K 15-25 tractor, weighing 3,500 lbs (1587 kg), is ideal for smaller farms requiring maneuverability without sacrificing power. Its weight allows for reduced soil compaction, promoting better crop growth but may limit performance in heavier tilling tasks. Consider using this tractor for light to moderate applications, such as planting and transport, where agility is more advantageous than raw horsepower.
BELT PULLEY
| Diameter |
18 inches/45 cm |
| Width |
6.75 inches/17 cm |
| RPM |
430 |
| Speed |
2,020 ft/min/615.70 meters/min |
