Sears lawn tractors

Sears GT/18

The Sears GT/18 is a garden tractor built by Roper and distributed by Sears from 1978 to 1980. It features an 18 hp Onan 781cc 2-cylinder gasoline engine, a 6-speed gear transmission by Peerless, and two-wheel drive with manual steering. The tractor has an open operator station and mechanical band brakes. It includes an independent front PTO with a mechanical clutch. The GT/18 weighs 619 lbs (280 kg) and rides on 16x6.50-8 front and 23x10.00-12 rear lawn/turf tires. Attachments available include 42" and 48" mid-mount mower decks, a 46" front blade, snow blower, and front-end loader. Variants include the gear-driven GT/18 and the hydrostatic GT18H. Original price was $2,579 in 1979.

Power-

Founded-

ModelGT/18

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Technical Specifications

Detailed specifications and technical data for Sears GT/18

Tires

Rear tire	23x10.00-12
Front tire	16x6.50-8

Engine

Type	gasoline
Model	Onan B48M
Cooling	air-cooled horizontal-shaft opposed twin
Starter	electric
Cylinders	2-cylinder
Fuel tank	3.25 gal (12.3 L)
Bore/Stroke	3.25x2.875 inches (83 x 73 mm)
Displacement	781 cc (47.7 ci)
Oil capacity	1.75 qts (1.7 L)
Power (gross)	18 hp (13.4 kW)
Starter volts	12
Oil change interval	25 h

Variants

GT/18	gear
GT18H	hydrostatic

Dimensions

Width	36.5 inches (92 cm)
Height	40 inches (101 cm)
Length	68.5 inches (173 cm)
Shipping weight	619 lbs (280 kg)

Electrical

Ground	negative
Battery volts	12
Charging amps	15
Charging system	alternator

Mechanical

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

Production

Type	Garden tractor
Distributor	Sears
Manufacturer	Roper
Original price	$2,579 in 1979
Production years	1978 - 1980

Attachments

Loader	79 inches height at pin (200 cm), weight 400 lbs (181 kg), bucket width 36 inches (91 cm)
46" Blade	front-mount, 46 inches width (116 cm), 17 inches height (43 cm), 113 lbs (51 kg), manual-lift
Snow blower	front-mount, total width 42 inches (106 cm), weight 253 lbs (114 kg)
42" mid-mount mower deck	42 inches (106 cm), total width 58 inches (147 cm), 3-blade, manual lift, right-discharge, cut height 1.5 to 4.5 inch (3 to 11 cm), weight 172 lbs (78 kg)
48" mid-mount mower deck	48 inches (121 cm), total width 64 inches (162 cm), 3-blade, manual lift, right-discharge, weight 184 lbs (83 kg)

Transmission

Type	belt-driven gear
Brand	Peerless
Gears	6 forward and 2 reverse
Clutch	mechanical idler pulley
Oil type	SAE 30
Oil capacity	5 qts (4.7 L)
Oil change interval	480 h