Bolens 21HD
Power
6 hp
Production
1957
Engine
Gasoline, 1-cylinder
Transmission
Versa-matic
Weight
460 lbs [208 kg]
Drive
2WD
From the same series:
Introduction
Bolens 21HD Garden Tractor
The Bolens 21HD is a garden tractor produced starting in 1957 in Port Washington, Wisconsin, USA. Designed for residential lawn care and garden maintenance, this model reflects the engineering standards of the era for compact utility tractors.
Engine and Performance
The tractor is powered by a Kohler K161 engine, a single-cylinder, air-cooled gasoline unit. It features a displacement of 277 cc (16.94 ci) and produces 6.5 hp (4.8 kW). The engine is started via a manual recoil system, with an optional electric start available.
Transmission and Drivetrain
The 21HD utilizes a Versa-matic belt-driven CVT transmission. This system incorporates a variable-geometry drive pulley with six positions on the control lever, providing six forward gears and one reverse gear. Interchangeable drive sprockets allow for high and low range operation to suit different load conditions.
Mechanical and Dimensions
This two-wheel-drive machine features manual steering and mechanical band brakes for operator control. It has a wheelbase of 41.5 inches (105 cm) and a shipping weight of 460 lbs (208 kg). The tractor is equipped with 4.00x8 front tires and 6-12 rear tires, specifically designed for lawn and turf applications.
Conclusion
The Bolens 21HD is a compact, utility-focused garden tractor designed for versatility in residential settings. Its combination of a simple, air-cooled engine and a multi-range belt-driven transmission makes it a functional tool for mowing and basic garden tasks.
Production Information of Bolens, 21HD
- Original price was $474 in 1957
- Garden tractor
- Built in Port Washington, Wisconsin, USA
| Manufacturer | Bolens |
|---|
Dimension and Tires Information of Bolens, 21HD
| Rear tread | 24.5 inches [62 cm] |
|---|---|
| Wheelbase | 41.5 inches [105 cm] |
| Shipping weight | 460 lbs [208 kg] |
| Height | 37 inches [93 cm] |
| Length | 61.5 inches [156 cm] |
| Front tread | 25.5 inches [64 cm] |
| Width | 30.5 inches [77 cm] |
| Lawn/turf front | 4.00x8 |
|---|---|
| Lawn/turf rear | 6-12 |
Engine Specifications of Bolens, 21HD
- Kohler K161
- Air-cooled
- Gasoline
- 1-cylinder
| Power | 6.5 hp [4.8 kW] |
|---|---|
| Displacement | 277 cc [16.94 ci] |
| Starter type | Manual recoil |
| Bore/Stroke | 2.875x2.50 inches [73 x 64 mm] |
| Bore/Stroke(optional) | Electric |
Transmission Information of Bolens, 21HD
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, 21HD
- Two-wheel drive
- Open operator station.
- Manual steering
- Mechanical band brakes
Where it sits
With 6 HP, the Bolens 21HD sits just above 20HD (3 HP) in Bolens's range. Its power puts it in the 71th percentile of 1950s models in our database (65 machines).
Frequently asked questions
How much horsepower does the Bolens 21HD have?
The Bolens 21HD delivers 6 HP.
What years was the Bolens 21HD produced?
The Bolens 21HD was produced in 1957.
What engine does the Bolens 21HD have?
The Bolens 21HD is powered by a Gasoline, 1-cylinder engine.
What transmission does the Bolens 21HD use?
The Bolens 21HD uses a Versa-matic transmission.
How much does the Bolens 21HD weigh?
The Bolens 21HD weighs 460 lbs [208 kg].
Is the Bolens 21HD 4WD?
The Bolens 21HD is available in 2WD.