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Ariens RM1228 vs Ariens S-12H
Verdict: Ariens RM1228 vs Ariens S-12H
The Ariens RM1228 and the Ariens S-12H are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 12 hp. Ariens S-12H holds more fuel (17.0 L vs 2.8 L) for longer stints between fills. Ariens RM1228 is the newer design (1991 vs 1976). 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
Ariens
62
Fit score
Best match
Clear
Ariens
62
Fit score
Best match
Clear
Rated power
12 hp
12 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
AriensReference
AriensReference
air-cooled vertical-shaftReference
air-cooled horizontal-shaftReference
Steering
—
manualReference
Engine
Fuel tank
2.8 LReference
17.0 LReference
Displacement
28.4 ciReference
29.07 ciReference
Bore/Stroke
87 x 78 mmReference
86 x 83 mmReference
Power (gross)
8.9 kWReference
8.9 kWReference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Fuel use
—
3.8 l/hourReference
Air cleaner
—
dry element with foam precleanerReference
Compression
—
6.6:1Reference
Sparkplug gap
—
0.635 mmReference
Oil capacity
—
5.2 LReference
Transmission
Transmission
Disc-O-MaticReference
SundstrandReference
Gears
6 forward and 1 reverseReference
infinite forward and reverseReference
Oil type
—
SAE 5W-30Reference
PTO & Hydraulics
Mid PTO
independentReference
—
Clutch
idler pulleyReference
electricReference
Rear Type
—
0Reference
Front PTO
—
independentReference
Front PTO Type
—
3600Reference
Dimensions
Wheelbase
115 cmReference
121 cmReference
Front tire
4.10-3.50x4.00Reference
16x6.50-8Reference
Rear tire
16-6.50x8Reference
23x8.50-10Reference
Lawn/turf front
4.10-3.50x4.00Reference
16x6.50-8Reference
Lawn/turf rear
16-6.50x8Reference
23x8.50-10Reference
Length
158 cmReference
189 cmReference
Height (steering wheel)
99 cmReference
121 cmReference
Weight
—
405 kgReference
Width
—
109 cmReference
Shipping weight
—
405 kgReference
Ariens RM1228 attachments
Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
Charging system
—
flywheel alternatorReference
Charging amps
—
15Reference
Battery CCA
—
255Reference
Battery AH
—
39Reference
Attachment overview
28" Mower deck
Type
fiction discReference
shaft-driven hydrostaticReference
Cutting width
71 cmReference
—
Cut height
3 to 8 cmReference
—
Cut positions
5Reference
—
Ariens S-12H attachments
S-12H Serial Numbers
Location:
—
Serial number on the right side of the tractor frame, above the front axle.Reference
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.