The Wheel Horse 312-H is a lawn tractor with a rated power of 12 hp, falling within the mid-range for its class. It was manufactured from 1990 to 1992. The machine features a 1-cylinder petrol air-cooled engine, paired with two-wheel drive and a hydrostatic transmission. Its operating weight is listed as 282 kg, with a suitable operating area 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
282 kg
Catalogue coverage
Variants represented
2
Richest spec table
53 rows
Recorded power
12 hp
Recorded weight
282 kg
Transmissions
hydrostatic
Production years
1990-1992
Verified variants
0
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Overview
ManufacturerWheel Horse (a part of Toro)Reference
Garden tractorReference
Built in South Bend, Indiana, USAReference
Two-wheel driveReference
Manual steeringReference
Open operator station.Reference
Engine
12HP Kohler 476cc 1-cyl gasolineReference
Fuel tank6.6 LReference
Kohler M12SReference
gasolineReference
1-cylinderReference
air-cooled horizontal-shaftReference
Displacement29.07 ciReference
Bore/Stroke86 x 83 mmReference
Power (gross)8.9 kWReference
Rated RPM3600Reference
StarterelectricReference
Starter volts12Reference
Oil capacity2.4 LReference
SparkplugRH10Reference
Sparkplug gap0.635 mmReference
Transmission
hydrostaticReference
TransmissionEaton 1100-032Reference
Typebelt-driven hydrostaticReference
Gearsinfinite forward and reverseReference
Dimensions
Wheelbase115 cmReference
Weight282 kgReference
Front tire15x6.00-6Reference
Rear tire23x8.50-12Reference
37" mid-mount mower deckReference
42" mid-mount mower deckReference
48" mid-mount mower deckReference
snowblowerReference
bladeReference
Lawn/turf front15x6.00-6Reference
Lawn/turf rear23x8.50-12Reference
Length165 cmReference
Width92 cmReference
Height107 cmReference
312-H Serial Numbers
Location:Serial number plate on rear fender, below the seat. Model codes in parentheses.Reference
1990-unknown-Reference
1991-unknown-Reference
1992-unknown-Reference
FAQ: How to read a serial number table.Reference
Electrical
GroundnegativeReference
Charging amps15Reference
Battery CCA160Reference
Battery volts12Reference
Attachment overview
37" mid-mount mower deckReference
42" mid-mount mower deckReference
48" mid-mount mower deckReference
SnowblowerReference
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.
