Wheel Horse SB-421
Power
11 hp
Production
1982
Engine
Gasoline, 1-cylinder
Transmission
Wheel Horse Uni-Drive 5086
Drive
2WD
From the same series:
Introduction
Wheel Horse SB-421 Garden Tractor
The Wheel Horse SB-421 is a garden tractor manufactured in 1982 in South Bend, Indiana, USA. It belongs to a series of compact utility machines designed for residential property maintenance, sharing design elements such as the classic C-series red hood with the SK-486 model.
Engine and Performance
The tractor is powered by a single-cylinder, air-cooled Briggs & Stratton 252417 gasoline engine. With a displacement of 399 cc (24.36 cubic inches) and a rated operating speed of 3600 RPM, the unit generates 11 horsepower (8.2 kW). The engine features a bore and stroke of 87 mm by 67 mm and requires an oil capacity of 1.4 liters.
Transmission and Drivetrain
The SB-421 utilizes the Wheel Horse Uni-Drive 5086 transmission system. This gear-driven transmission provides the operator with six forward speeds and two reverse speeds, allowing for versatile speed selection during lawn maintenance tasks. The tractor is configured with a two-wheel drive system and manual steering.
Equipment and Chassis
This model is equipped with a 42-inch mower deck designed for grass cutting and landscaping applications. The chassis features an open operator station for accessibility, and the structural integrity of the drivetrain is supported by a rear axle with a 25 mm (1 inch) diameter. The electrical system operates on a 12-volt battery with a negative ground configuration.
Conclusion
The Wheel Horse SB-421 is a utilitarian garden tractor suited for standard residential lawn care and light property maintenance. Its combination of a gear-driven transmission and a reliable Briggs & Stratton engine makes it a functional choice for users seeking a straightforward, mechanically simple machine from the early 1980s.
Production Information of Wheel Horse, SB-421
- The Wheel Horse SB-421 carries model number 01-11BH01. The Wheel Horse SB-421, along with the SK-486, used the older C-series red hood.
- Garden tractor
- Built in South Bend, Indiana, USA
| Manufacturer | Wheel Horse |
|---|
Dimension and Tires Information of Wheel Horse, SB-421
| Rear axle | 1 inch diameter [25 mm] |
|---|
Engine Specifications of Wheel Horse, SB-421
- Briggs & Stratton 252417
- Air-cooled
- Gasoline
- 1-cylinder
| Power | 11 hp [8.2 kW] |
|---|---|
| Displacement | 399 cc [24.36 ci] |
| Rated RPM | 3600 |
| Bore/Stroke | 3.438x2.625 inches [87 x 67 mm] |
| Oil capacity | 1.5 qts [1.4 L] |
| Starter volts | 12 |
Transmission Information of Wheel Horse, SB-421
Transmission variants 1
| Transmission | Wheel Horse Uni-Drive 5086 |
|---|---|
| Type | Gear |
| Gears | 6 forward and 2 reverse |
Mechanical Specs of Wheel Horse, SB-421
- Two-wheel drive
- Manual steering
- Open operator station.
Electrical System of Wheel Horse, SB-421
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
With 11 HP, the Wheel Horse SB-421 sits just below SK-486 (16 HP) in Wheel Horse's range. Its power puts it in the 42th percentile of 1980s models in our database (977 machines).
Frequently asked questions
How much horsepower does the Wheel Horse SB-421 have?
The Wheel Horse SB-421 delivers 11 HP.
What years was the Wheel Horse SB-421 produced?
The Wheel Horse SB-421 was produced in 1982.
What engine does the Wheel Horse SB-421 have?
The Wheel Horse SB-421 is powered by a Gasoline, 1-cylinder engine.
What transmission does the Wheel Horse SB-421 use?
The Wheel Horse SB-421 uses a Wheel Horse Uni-Drive 5086 transmission.
Is the Wheel Horse SB-421 4WD?
The Wheel Horse SB-421 is available in 2WD.