Simplicity 7790H

Simplicity 7790H lawn tractor photo
Garden tractor

Note: the Simplicity model 7790H is the same as the Allis Chalmers 920. The following data is from the 920 listing.
TypeGarden tractor
FactoryPort Washington, Wisconsin, USA
Original price$6,099 (1985 )
Simplicity 7790H Engine
18.5HP Lombardini 790cc 2-cyl diesel
Fuel tank3 gal
11.4 L
Engine details ...
Chassis4x2 2WD
Final drivesspur gear
 power optional
Brakesmechanical band
CabOpen operator station.
Tractor hitch
Typesleeve hitch *Optional. Part number 1600055.
Dimensions & Tires
Wheelbase48.1 inches
122 cm
Weight689 lbs
312 kg
Front tire16-6.50x8
Rear tire23-10.50x12
Full dimensions and tires ...
Simplicity 7790H attachments
42" mid-mount mower deck
48" mid-mount mower deck
Attachment details ...
7790H Serial Numbers
7790H Serial Location
Simplicity 7790H serial number location
Serial number plate on the left side of the tractor frame, just ahead of the seat.
Links information, photos and old advertising literature at
Charging systemflywheel alternator
Charging amps16
Battery CCA500
Battery volts12
Battery Group24
Page information
Last updateMay 8, 2014
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