Simplicity Sovereign 18H

Simplicity Sovereign 18HThe Simplicity Sovereign 18H is a 2WD garden tractor from the Sovereign series. This tractor was manufactured by Simplicity in Port Washington, Wisconsin, USA from 1993 to 2000. The Sovereign 18H is equipped with a 0.6 L (38.1 cu·in) two-cylinder gasoline engine and a belt-driven hydrostatic transmission with infinite forward and reverse gears.

The Simplicity Sovereign 18H garden tractor used the Kohler CH18 engine. It is a 0.6 L, 624 cm2, (38.1 cu·in) two-cylinder natural aspirated gasoline engine with 77.0 mm (3.03 in) of the cylinder bore and 67.0 mm (2.64 in) of the piston stroke. The compression ratio rating is 8.5:1. This engine produced 18.2 PS (13.4 kW; 18.0 HP) at 3,600 rpm of output power.

The Simplicity Sovereign 18H is equipped with manual or power (optional) steering, open operator station and 11.4 liters (3 US gal.; 2.5 Imp. gal) fuel tank.

Following attachments are available for the Simplicity Sovereign 18H garden tractor:

  • Mid-mount Simplicity 1691218: 42 in (1,060 mm) mower deck
  • Mid-mount Simplicity 1691219: 48 in (1,210 mm) mower deck
  • Front-mount Simplicity 1691520: 48 in (1,060 mm) blade
  • Front-mount Simplicity 1691521: 36 in (910 mm) snowblower
  • Front-mount Simplicity 1691522: 42 in (1,060 mm) snowblower

AGCO 918H Specifications

General Specifications
ModelSimplicity Sovereign 18H
Length1,770 mm (69.7 in)
Width930 mm (36.6 in)
Height (steering wheel)1,000 mm (39.4 in)
Wheel base1,280 mm (50.4 in)
Weight312 kg (688 lbs)
Fuel tank capacity11.4 liters (3 US gal.; 2.5 Imp. gal)
Battery12V
Cabin typeOpen operator station
Engine
Engine modelKohler CH18
Engine typeFour-stroke, air-cooled, V-twin
Cylinders2
Fuel typeGasoline
Displacement0.6 L, 624 cm2, (38.1 cu·in)
Bore and stroke77.0 mm X 67.0 mm (3.03 in X 2.64 in)
Compression ratio8.5:1
Horsepower18.2 PS (13.4 kW; 18 HP) at 3,600 rpm
StarterElectric
Oil typeSAE 10W-30
Oil capacity:1.9 L (2 US. qt, 1.7 Imp. qt.)
Spark plugChampion RC12YC
Transmission and chassis
Chassis2WD
Steering typeManual or power (optional)
Brakes
Transmission model
Transmission typeBelt-driven hydrostatic
GearsInfinite forward and reverse
Speed Forward: 11.3 kmh (7.0 mph) Reverse: 6.4 kmh (4.0 mph)
Tires
Front tires Lawn/turf: 16×6.50-8
Rear tires Lawn/turf: 23×10.5-12
Three-Point Hitch
CategorySleeve hitch (optional)
Control type
Lift capacity (at ends) kg (0 lbs)
PTO (Power take-off shaft)
Middle PTO typeIndependent with manual clutch
Middle PTO speed
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We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. In addition, the characteristics may vary depending on the modification and market. We do not provide advice on technical issues related to the any operation or repair. We do not recommend using provided information for repairing or spare parts ordering, use only official service manuals and spare-parts catalogs.

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