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Wheel Horse 312-H vs Wheel Horse 612-Z
Verdict: Wheel Horse 312-H vs Wheel Horse 612-Z
The Wheel Horse 312-H and the Wheel Horse 612-Z are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 12 hp. Wheel Horse 312-H is the lighter machine (282 kg vs 309 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Wheel Horse 612-Z holds more fuel (11.4 L vs 6.6 L) for longer stints between fills. Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
Wheel Horse
62
Fit score
Best match
Clear
Wheel Horse
62
Fit score
Best match
Clear
Rated power
12 hp
12 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Wheel Horse (a part of Toro)Reference
Wheel Horse (a part of Toro)Reference
air-cooled horizontal-shaftReference
air-cooled vertical-shaftReference
Engine
Fuel tank
6.6 LReference
11.4 LReference
Displacement
29.07 ciReference
23.7 ciReference
Bore/Stroke
86 x 83 mmReference
84 x 70 mmReference
Power (gross)
8.9 kWReference
—
Rated RPM
3600Reference
—
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Oil capacity
2.4 LReference
—
Sparkplug
RH10Reference
—
Sparkplug gap
0.635 mmReference
—
Power
—
8.9 kWReference
Transmission
Transmission
Eaton 1100-032Reference
Eaton 780Reference
Type
belt-driven hydrostaticReference
hydrostaticReference
Gears
infinite forward and reverseReference
infinite forward and reverseReference
Dimensions
Wheelbase
115 cmReference
106 cmReference
Weight
282 kgReference
309 kgReference
Front tire
15x6.00-6Reference
11x4.00-5Reference
Rear tire
23x8.50-12Reference
18x9.50-8Reference
Lawn/turf front
15x6.00-6Reference
11x4.00-5Reference
Lawn/turf rear
23x8.50-12Reference
18x9.50-8Reference
Length
165 cmReference
182 cmReference
Width
92 cmReference
101 cmReference
Height
107 cmReference
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312-H Serial Numbers
1990
-unknown-Reference
—
1991
-unknown-Reference
—
1992
-unknown-Reference
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Location:
Serial number plate on rear fender, below the seat. Model codes in parentheses.Reference
Serial number plate on the left side of the machine, behind the left drive wheel.Reference
Electrical
Ground
negativeReference
negativeReference
Charging amps
15Reference
—
Battery CCA
160Reference
280Reference
Battery volts
12Reference
12Reference
Attachment overview
PTO & Hydraulics
Mid PTO
—
independentReference
Clutch
—
electricReference
612-Z Serial Numbers
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.