The Wheel Horse 612-Z is a lawn tractor with a 12 hp rating, placing it in the middle of its class for power output. Manufactured between 1990 and 1991, this model is equipped with a 1-cylinder petrol air-cooled engine, transmitting power through a hydrostatic transmission to its two-wheel drive system. The listed weight of the 612-Z is 309 kg, and it is suitable for tasks covering areas of up to 200 acres.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
12 hp
Weight
309 kg
Catalogue coverage
Variants represented
2
Richest spec table
40 rows
Recorded power
12 hp
Recorded weight
309 kg
Transmissions
hydrostatic
Production years
1990-1991
Verified variants
0
No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.
Hover a source tag to verify
Overview
ManufacturerWheel Horse (a part of Toro)Reference
Zero-turn mowerReference
Two-wheel driveReference
Power steeringReference
Open operator station.Reference
Engine
12HP Onan 388cc 1-cyl gasolineReference
Fuel tank11.4 LReference
Onan E125VReference
gasolineReference
1-cylinderReference
air-cooled vertical-shaftReference
Displacement23.7 ciReference
Bore/Stroke84 x 70 mmReference
Power8.9 kWReference
StarterelectricReference
Starter volts12Reference
Transmission
hydrostaticReference
TransmissionEaton 780Reference
TypehydrostaticReference
Gearsinfinite forward and reverseReference
PTO & Hydraulics
Mid PTOindependentReference
ClutchelectricReference
Dimensions
Wheelbase106 cmReference
Weight309 kgReference
Front tire11x4.00-5Reference
Rear tire18x9.50-8Reference
38" mid-mount mower deckReference
42" mid-mount mower deckReference
bladeReference
Lawn/turf front11x4.00-5Reference
Lawn/turf rear18x9.50-8Reference
Length182 cmReference
Width101 cmReference
612-Z Serial Numbers
Location:Serial number plate on the left side of the machine, behind the left drive wheel.Reference
Electrical
GroundnegativeReference
Battery CCA280Reference
Battery volts12Reference
Attachment overview
38" mid-mount mower deckReference
42" mid-mount mower deckReference
BladeReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
