Gravely lawn tractors

Gravely 18-H

The Gravely 18-H is a garden tractor produced from 1987 to 1991 by Gravely, a part of Ariens. It features an 18 hp Kohler M18 691cc 2-cylinder gasoline engine with air-cooled horizontal-shaft horizontally-opposed design. The tractor uses a Sundstrand shaft-driven hydrostatic transmission with infinite forward and reverse gears. It has a wheelbase of 48.5 inches and weighs 870 lbs. The 18-H includes features such as two-wheel drive, manual steering, disc brakes, and an open operator station. Attachments available include a 48" mid-mount mower deck, 54" front-mount blade, and a 48" two-stage front-mount snow blower.

Power-

Founded-

Model18-H

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Technical Specifications

Detailed specifications and technical data for Gravely 18-H

Engine

Type	gasoline
Model	Kohler M18
Cooling	air-cooled horizontal-shaft horizontally-opposed
Starter	electric
Cylinders	2-cylinder
Fuel tank	4.5 gal (17.0 L)
Bore/Stroke	3.12x2.75 inches (79 x 70 mm)
Displacement	691 cc (42.18 ci)
Oil capacity	1.5 qts (1.4 L)
Power (gross)	18 hp (13.4 kW)
Starter volts	12

Features

Drive	Two-wheel drive
Brakes	Disc brakes
Steering	Manual steering
Operator station	Open operator station

Dimensions

Width	42.8 inches (108 cm)
Height	45.8 inches (116 cm)
Length	74 inches (187 cm)
Rear tire	23x10.50-12
Wheelbase	48.5 inches (123 cm)
Front tire	16x6.50-8
Shipping weight	870 lbs (394 kg)

Electrical

Ground	negative
Battery volts	12
Charging amps	15

Production

Type	Garden tractor
Years made	1987 - 1991
Manufacturer	Gravely (a part of Ariens)

Attachments

Note	Garden tractors are capable of using tillers, plows, or other ground-engaging attachments.
54" Blade	front-mount, hydraulic-lift, 54 inches width (137 cm)
48" Snow blower	two-stage, front-mount, hydraulic-lift, 48 inches width (121 cm)
48" mid-mount mower deck	3-blade with hydraulic lift, cutting width 48 inches (121 cm), weight 169 lbs (76 kg), overall width 53 inches (134 cm), cut height 1.5 to 3.5 inch (3 to 8 cm)

Transmission