Bolens 20HD
Power
3 hp
Production
1956-1957
Engine
Gasoline, 1-cylinder
Transmission
Versa-matic
Weight
330 lbs [149 kg]
Drive
2WD
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Introduction
Bolens 20HD Garden Tractor
The Bolens 20HD is a vintage garden tractor produced between 1956 and 1957 in Port Washington, Wisconsin, USA. Designed for residential lawn care and light-duty maintenance, this machine represents a classic era of American small-scale agricultural equipment.
Engine and Power
The tractor is powered by a Kohler K90 gasoline engine. This single-cylinder, air-cooled unit has a displacement of 145 cc (8.86 ci) and produces 3.6 hp (2.7 kW). It is started via a manual recoil system, typical for tractors of this period.
Transmission and Drive
The 20HD utilizes a belt-driven Versa-matic CVT transmission. It features a variable-geometry drive pulley offering six distinct positions on the control lever, providing six forward gears and one reverse gear. This setup allows for speed adjustment through interchangeable drive sprockets, which define the high and low operating ranges.
Mechanical and Dimensions
This two-wheel-drive tractor features manual steering and mechanical band brakes. It measures 152 cm in length and 77 cm in width, with a wheelbase of 101 cm. The machine weighs approximately 149 kg and provides 22 cm of ground clearance, making it well-suited for maneuverability in garden environments.
Equipment and Tires
The tractor is equipped with specific lawn and turf tires, sized 4.00x8 for the front and 6-12 for the rear to minimize surface damage. It was marketed with a 30-inch mower deck, intended for residential grass cutting applications.
Conclusion
The Bolens 20HD is a compact, mechanically straightforward garden tractor intended for light yard work and lawn maintenance. Its combination of a variable-geometry transmission and a reliable Kohler engine makes it a notable example of mid-1950s garden machinery, suitable for small-scale property management.
Production Information of Bolens, 20HD
- Original price was $415 in 1957
- Garden tractor
- Built in Port Washington, Wisconsin, USA
| Manufacturer | Bolens |
|---|
Dimension and Tires Information of Bolens, 20HD
| Front tread | 24.5 inches [62 cm] |
|---|---|
| Wheelbase | 40 inches [101 cm] |
| Shipping weight | 330 lbs [149 kg] |
| Height | 35.25 inches [89 cm] |
| Length | 60 inches [152 cm] |
| Rear tread | 24.5 inches [62 cm] |
| Ground clearance | 9 inches [22 cm] |
| Width | 30.5 inches [77 cm] |
| Lawn/turf front | 4.00x8 |
|---|---|
| Lawn/turf rear | 6-12 |
Engine Specifications of Bolens, 20HD
- Kohler K90
- Air-cooled
- Gasoline
- 1-cylinder
| Power | 3.6 hp [2.7 kW] |
|---|---|
| Displacement | 145 cc [8.86 ci] |
| Starter type | Manual recoil |
| Bore/Stroke | 2.375x2.00 inches [60 x 51 mm] |
Transmission Information of Bolens, 20HD
Transmission variants 1
- Variable-geometry drive pulley with six positions on the control lever. Interchangeable drive sprockets provides high and low ranges.
| Transmission | Versa-matic |
|---|---|
| Type | Belt-driven CVT |
| Gears | 6 forward and 1 reverse |
Mechanical Specs of Bolens, 20HD
- Two-wheel drive
- Open operator station.
- Manual steering
- Mechanical band brakes
Where it sits
With 3 HP, the Bolens 20HD sits just below 21HD (6 HP) in Bolens's range. Its power puts it in the 20th percentile of 1950s models in our database (65 machines).
Frequently asked questions
How much horsepower does the Bolens 20HD have?
The Bolens 20HD delivers 3 HP.
What years was the Bolens 20HD produced?
The Bolens 20HD was produced in 1956-1957.
What engine does the Bolens 20HD have?
The Bolens 20HD is powered by a Gasoline, 1-cylinder engine.
What transmission does the Bolens 20HD use?
The Bolens 20HD uses a Versa-matic transmission.
How much does the Bolens 20HD weigh?
The Bolens 20HD weighs 330 lbs [149 kg].
Is the Bolens 20HD 4WD?
The Bolens 20HD is available in 2WD.