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Bolens Estate Keeper 931

Bolens Estate Keeper 931 tractor
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The Bolens Estate Keeper 931 is an articulated front-mount mower produced from 1967 to 1969 as part of the Frame Steer Series. It features a 10 hp Wisconsin TRA10D air-cooled 1-cylinder gasoline engine with a displacement of 331 cc. The transmission is a 6-speed gear type with 6 forward and 2 reverse gears. The tractor has two-wheel drive with manual articulated steering and an open operator station. Attachments include 32", 38", and 42" front-mount mower decks, a 32" snowblower, and a 38" blade.
BolensEstate Keeper 931lawn tractorarticulated front-mount mowerWisconsin TRA10D engine10 hp6-speed gear transmissionmower deckssnowblowerblade
Power10 hp
Founded32/38/42" deck
Model931

Technical Specifications

Detailed specifications and technical data for Bolens Estate Keeper 931

Engine

Type:gasoline
Model:Wisconsin TRA10D
Power:10 hp (7.5 kW)
Cooling:air-cooled
Starter:electric
Cylinders:1-cylinder
Bore/Stroke:3.125x2.625 inches (79 x 67 mm)
Displacement:331 cc (20.2 ci)
Starter volts:12

Overview

Series:Frame Steer Series
Description:Articulated front-mount mower
Production years:1967 - 1969

Mechanical

Drive:Two-wheel drive
Steering:Manual articulated steering
Operator station:Open operator station

Attachments

Blade:38 inches width (96 cm), front-mount
Snowblower:32 inches width (81 cm), front-mount
32" front-mount mower deck:32 inches (81 cm)
38" front-mount mower deck:38 inches (96 cm)
42" front-mount mower deck:42 inches (106 cm)

Transmission

Type:gear
Gears:6 forward and 2 reverse