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Allis Chalmers 611 Hydro vs Allis Chalmers 811GT
Verdict: Allis Chalmers 611 Hydro vs Allis Chalmers 811GT
The Allis Chalmers 611 Hydro and the Allis Chalmers 811GT are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 11 hp. Allis Chalmers 811GT is the lighter machine (198 kg vs 249 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Allis Chalmers 611 Hydro is the newer design (1983 vs 1979). 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
Allis Chalmers
62
Fit score
Best match
Clear
Allis Chalmers
62
Fit score
Best match
Clear
Rated power
11 hp
11 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Allis ChalmersReference
Allis ChalmersReference
air-cooled vertical-shaftReference
air-cooled vertical-shaftReference
Steering
manualReference
—
Variants
4211H
similar Simplicity modelReference
—
Engine
Fuel tank
8.3 LReference
8.3 LReference
Displacement
24.36 ciReference
24.36 ciReference
Bore/Stroke
87 x 67 mmReference
87 x 67 mmReference
Power
8.2 kWReference
—
Air cleaner
foamReference
—
Rated RPM
3600Reference
3400Reference
Idle RPM
1750-3400Reference
1750-3400Reference
Starter volts
12Reference
12Reference
Oil capacity
0.7 LReference
—
Power (gross)
—
8.2 kWReference
Starter
—
electricReference
Transmission
Gears
infinite forward and reverseReference
3 forward and 1 reverseReference
PTO & Hydraulics
Mid PTO
independentReference
independentReference
Clutch
manualReference
mechanical idler pulleyReference
Mid PTO Type
pulleyReference
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Dimensions
Wheelbase
115 cmReference
115 cmReference
Weight
36 kgReference
198 kgReference
Front tire
13-6.00x6Reference
15x6.00-6Reference
Rear tire
18-8.50x8Reference
20x8.00-10Reference
Lawn/turf front
13-6.00x6Reference
15x6.00-6Reference
Lawn/turf rear
18-8.50x8Reference
20x8.00-10Reference
Length
165 cmReference
168 cmReference
Width
85 cmReference
85 cmReference
Height (steering wheel)
99 cmReference
101 cmReference
Height (hood)
85 cmReference
87 cmReference
Ground clearance
13 cmReference
—
Clearance (front axle)
23 cmReference
—
Allis Chalmers 611 Hydro attachments
Electrical
Ground
negativeReference
negativeReference
Charging amps
3Reference
3Reference
Battery volts
12Reference
12Reference
Battery AH
—
39Reference
Attachment overview
36" Mower deck
Type
belt-driven hydrostaticReference
belt-driven gearReference
Cutting width
91 cmReference
—
Overall width
116 cmReference
—
Cut height
3 to 8 cmReference
—
Allis Chalmers 811GT attachments
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.