Bolens lawn tractors

Bolens 850

The Bolens 850 is a garden tractor produced from 1966 to 1969 as part of the Tube Frame Series. It features an 8.25 hp Wisconsin S8D 331cc 1-cylinder air-cooled gasoline engine, a 6-speed gear transmission with 2 reverse gears, and two-wheel drive with manual steering. The tractor has a wheelbase of 42.5 inches, weighs 550 lbs, and uses 4.00-8 front tires and 23x8.50-12 rear tires. Attachments include 32" and 38" mid-mount mower decks, a 36" front-mount snowblower, and a 42" front-mount blade. The original price was $783 in 1965.

Power8 hp

Founded32/38" deck

Model850

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Technical Specifications

Detailed specifications and technical data for Bolens 850

Tires

Rear tire	23x8.50-12
Front tire	4.00-8

Engine

Type	gasoline
Model	Wisconsin S8D
Power	8.25 hp (6.2 kW)
Cooling	air-cooled
Starter	electric
Cylinders	1-cylinder
Fuel tank	1.25 gal (4.7 L)
Rated RPM	3600
Bore/Stroke	3.125x2.625 inches (79 x 67 mm)
Displacement	331 cc (20.2 ci)
Oil capacity	2 qts (1.9 L)
Starter volts	12

Features

Drive	Two-wheel drive
Steering	manual
Operator station	Open

Overview

Series	Tube Frame Series
Category	Garden tractor
Original price	$783 in 1965
Production years	1966 - 1969

Dimensions

Width	34 inches (86 cm)
Height	40 inches (101 cm)
Length	62.5 inches (158 cm)
Wheelbase	42.5 inches (107 cm)
Shipping weight	550 lbs (249 kg)
Ground clearance	7 inches (17 cm)

Electrical

Ground	negative
Battery volts	12

Attachments

Blade	42 inches width (106 cm), front-mount
Snowblower	36 inches width (91 cm), front-mount
32" mid-mount mower deck	32 inches (81 cm), 3-blade
38" mid-mount mower deck	38 inches (96 cm)

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