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Allis Chalmers 312 vs Allis Chalmers B-12
Verdict: Allis Chalmers 312 vs Allis Chalmers B-12
The Allis Chalmers 312 and the Allis Chalmers B-12 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 12 hp. Allis Chalmers 312 holds more fuel (8.5 L vs 5.7 L) for longer stints between fills. Allis Chalmers 312 is the newer design (1971 vs 1966). 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
12 hp
12 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Allis ChalmersReference
Allis ChalmersReference
air-cooledReference
air-cooled horizontal-shaftReference
Steering
manualReference
—
Variants
312
manual lift/PTOReference
—
312D
electric lift/PTOReference
—
312H
hydrostaticReference
—
Engine
Fuel tank
8.5 LReference
5.7 LReference
Displacement
29.07 ciReference
30.16 ciReference
Bore/Stroke
86 x 83 mmReference
83 x 87 mmReference
Power
8.9 kWReference
8.9 kWReference
Rated RPM
3600Reference
3600Reference
Starter volts
12Reference
12Reference
Oil capacity
1.9 LReference
1.9 LReference
Oil change
25 hReference
—
Air cleaner
—
oiled foamReference
Starter
—
electricReference
Transmission
Transmission
Vari-ShiftReference
Hi-LoReference
Gears
infinite forward and reverseReference
6 forward and 2 reverseReference
Type
hydrostaticReference
gearReference
PTO & Hydraulics
Front PTO
independentReference
liveReference
Clutch
electric (optional)Reference
—
Front PTO Type
3600Reference
—
Rear PTO
—
liveReference
Mid PTO
—
liveReference
Dimensions
Wheelbase
122 cmReference
111 cmReference
Weight
383 kgReference
—
Front tire
16-6.50x8Reference
6.50x8Reference
Rear tire
23-10.50x12Reference
23-8.50x12Reference
Lawn/turf front
16-6.50x8Reference
6.50x8Reference
Lawn/turf rear
23-10.50x12Reference
23-8.50x12Reference
Length
187 cmReference
172 cmReference
Width
97 cmReference
92 cmReference
Height (steering wheel)
109 cmReference
—
Clearance (front axle)
20 cmReference
—
Clearance (rear axle)
15 cmReference
—
Clearance (drawbar)
19 cmReference
—
Front tread
71 cmReference
—
Rear tread
77 cmReference
—
Height
—
95 cmReference
Ground clearance
—
15 cmReference
Allis Chalmers 312 attachments
312 Serial Number Location
Electrical
Ground
negativeReference
—
Charging system
alternatorReference
—
Charging amps
15Reference
—
Battery volts
12Reference
—
Attachment overview
Allis Chalmers B-12 attachments
B-12 Serial Number Location
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.