Bolens 850
Power
8 hp
Production
1966-1969
Engine
Gasoline, 1-cylinder
Transmission
Bolens
Weight
550 lbs [249 kg]
Drive
2WD
From the same series:
Introduction
Bolens 850 Garden Tractor
The Bolens 850 is a classic garden tractor produced between 1966 and 1969. Designed primarily for residential lawn care and light property maintenance, it represents a standard model of the Bolens fleet during the mid-1960s.
Engine and Performance
The tractor is powered by a Wisconsin S8D gasoline engine. This single-cylinder, air-cooled unit produces 8.25 hp (6.2 kW) at a rated speed of 3600 RPM. The engine displacement is 331 cc (20.2 ci) with a bore and stroke of 3.125 by 2.625 inches (79 x 67 mm). It requires 2 quarts (1.9 L) of oil for operation.
Transmission and Drive
The Bolens 850 utilizes a gear-type transmission providing 6 forward speeds and 2 reverse speeds, allowing for a range of operating paces. The system is lubricated by 2.5 quarts (2.4 L) of EP 90 gear lube. The power is delivered through a two-wheel drive configuration.
Dimensions and Chassis
Built on a 42.5-inch (107 cm) wheelbase, the tractor features a compact design suitable for maneuvering in garden environments. It has a total length of 62.5 inches (158 cm), a width of 34 inches (86 cm), and a height of 40 inches (101 cm). The shipping weight is approximately 550 lbs (249 kg). It is equipped with an open operator station and manual steering.
Tires and Mowing
The tractor is fitted with lawn and turf tires to provide traction while minimizing damage to grass surfaces. The front tires are sized 4.00-8, while the rear tires are 23x8.50-12. The unit is designed to accommodate 32-inch or 38-inch mower decks.
Conclusion
The Bolens 850 is a straightforward, mechanically simple tractor well-suited for owners of smaller properties requiring a reliable machine for mowing and basic utility tasks. Its design reflects the focus on durability common to Bolens equipment of the 1960s.
Production Information of Bolens, 850
- Garden tractor
- Original price was $783 in 1965
| Manufacturer | Bolens |
|---|
Dimension and Tires Information of Bolens, 850
| Wheelbase | 42.5 inches [107 cm] |
|---|---|
| Shipping weight | 550 lbs [249 kg] |
| Height | 40 inches [101 cm] |
| Length | 62.5 inches [158 cm] |
| Ground clearance | 7 inches [17 cm] |
| Width | 34 inches [86 cm] |
| Lawn/turf front | 4.00-8 |
|---|---|
| Lawn/turf rear | 23x8.50-12 |
Engine Specifications of Bolens, 850
- Wisconsin S8D
- Air-cooled
- Gasoline
- 1-cylinder
| Oil capacity | 2 qts [1.9 L] |
|---|---|
| Displacement | 331 cc [20.2 ci] |
| Rated RPM | 3600 |
| Bore/Stroke | 3.125x2.625 inches [79 x 67 mm] |
| Starter volts | 12 |
| Starter | Electric |
| Power | 8.25 hp [6.2 kW] |
Transmission Information of Bolens, 850
Transmission variants 1
| Transmission | Bolens |
|---|---|
| Oil type | EP 90 Gear Lube |
| Oil capacity | 2.5 qts [2.4 L] |
| Type | Gear |
| Type(optional) | EP 90 Gear Lube |
| Gears | 6 forward and 2 reverse |
Mechanical Specs of Bolens, 850
- Two-wheel drive
- Open operator station
| Steering | Manual |
|---|
Electrical System of Bolens, 850
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
With 8 HP, the Bolens 850 sits between 800 (7 HP) and 1050 (10 HP) in Bolens's range. Its power puts it in the 72th percentile of 1960s models in our database (550 machines).
Frequently asked questions
How much horsepower does the Bolens 850 have?
The Bolens 850 delivers 8 HP.
What years was the Bolens 850 produced?
The Bolens 850 was produced in 1966-1969.
What engine does the Bolens 850 have?
The Bolens 850 is powered by a Gasoline, 1-cylinder engine.
What transmission does the Bolens 850 use?
The Bolens 850 uses a Bolens transmission.
How much does the Bolens 850 weigh?
The Bolens 850 weighs 550 lbs [249 kg].
Is the Bolens 850 4WD?
The Bolens 850 is available in 2WD.