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Sears GT/18 Hydro 917.25707

The Sears GT/18 Hydro 917.25707 is a 1978 garden tractor built by Roper and distributed by Sears. It features an 18 hp Onan B48M 781cc 2-cylinder gasoline engine with a belt-driven hydrostatic transmission offering infinite forward and reverse speeds. The tractor has two-wheel drive, manual steering, and an open operator station. It weighs 688 lbs (312 kg) and rides on 16x6.50-8 front and 23x10.00-12 rear tires. Attachments include 42" and 48" mid-mount mower decks, a 46" blade, snowblower, and front-end loader.
Sears GT/18 HydroRoper garden tractor18 hp Onan enginehydrostatic transmission1978 garden tractorlawn tractor specs
Power-
Founded-
ModelGT/18 Hydro

Technical Specifications

Detailed specifications and technical data for Sears GT/18 Hydro 917.25707

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:2 gal (7.6 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

Dimensions

Width:36.5 inches (92 cm)
Height:41.4 inches (105 cm)
Length:68.5 inches (173 cm)
Shipping weight:688 lbs (312 kg)

Electrical

Ground:negative
Battery volts:12

Mechanical

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

Production

Type:Garden tractor
Distributor:Sears
Manufacturer:Roper
Original price:$2,479 in 1978

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
Snowblower: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 hydrostatic
Gears:infinite forward and reverse
Oil type:Type F ATF
Oil capacity:4.5 qts (4.3 L)