Sears lawn tractors

Sears 18/6 Twin 917.25190

The Sears 18/6 Twin is a garden tractor produced in 1977 by Roper and distributed by Sears. It features an 18 hp Onan 816cc 2-cylinder gasoline engine with air-cooled horizontal-shaft opposed-twin design. The tractor has a 6-speed belt-driven gear transmission with 6 forward and 2 reverse gears, and a manual steering system. It weighs 629 lbs and has lawn/turf tires sized 16x6.50 front and 23x10.50x12 rear. Optional attachments include 42" and 48" mid-mount mower decks, a snowblower, blade, and front-end loader. The tractor originally sold for $1,979 in 1979.

Power-

Founded-

Model18/6 Twin

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Technical Specifications

Detailed specifications and technical data for Sears 18/6 Twin 917.25190

Engine

Type	gasoline
Cooling	air-cooled horizontal-shaft opposed-twin
Starter	electric
Cylinders	2-cylinder
Fuel tank	3.5 gal (13.2 L)
Rated RPM	3600
Air cleaner	foam and paper elements
Bore/Stroke	3.25x3.00 inches (83 x 76 mm)
Displacement	816 cc (49.8 ci)
Engine model	Onan BG-MS
Power (gross)	18 hp (13.4 kW)
Starter volts	12

Overview

Type	Garden tractor
Production	1977
Distributor	Sears
Manufacturer	Roper
Original price	$1,979 in 1979

Dimensions

Width	36.5 inches (92 cm)
Height	41.4 inches (105 cm)
Length	68.5 inches (173 cm)
Rear tire	23x10.50x12
Front tire	16x6.50
Shipping weight	629 lbs (285 kg)

Electrical

Ground	negative
Battery AH	30
Battery volts	12

Attachments

Note	Garden tractors are capable of using tillers, plows, or other ground-engaging attachments.
Blade	46" front-mount, 46 inches width (116 cm)
Snowblower	42" front-mount, 42 inches width (106 cm)
Front-end loader	79 inches height (at pin) (200 cm)
42" mid-mount mower deck	Sears 25354, 42 inches (106 cm), 3-blade, manual lift, right-discharge, 160 lbs (72 kg)
48" mid-mount mower deck	Sears 25355, 48 inches (121 cm), 3-blade, right-discharge, 170 lbs (77 kg)

Transmission