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Lawn Tractor · 1976Unverified

Ariens S-12H

Name: Ariens S-12H
Brand: Ariens

Ariens S-12H — S Series · 12 hp. Reference specifications; pending source verification.

The Ariens S-12H is a lawn tractor model with a rated power output of 12 hp, a mid-range figure for its class. It was manufactured between 1976 and 1978. The model features a 1-cylinder petrol air-cooled engine paired with two-wheel drive and a hydrostatic transmission. Its operating weight is 405 kg.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

12 hp

Weight

405 kg

Catalogue coverage

Variants represented

Richest spec table

60 rows

Recorded power

12 hp

Recorded weight

405 kg

Transmissions

hydrostatic

Production years

1976-1978

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerAriensReference

Garden tractorReference

Built in Brillion, Wisconsin, USAReference

Two-wheel driveReference

SteeringmanualReference

Drum brakesReference

Open operator station.Reference

Engine

12HP Kohler 476cc 1-cyl gasolineReference

Fuel tank17.0 LReference

Kohler K301Reference

gasolineReference

1-cylinderReference

air-cooled horizontal-shaftReference

Displacement29.07 ciReference

Bore/Stroke86 x 83 mmReference

Power (gross)8.9 kWReference

Fuel use3.8 l/hourReference

Air cleanerdry element with foam precleanerReference

Compression6.6:1Reference

StarterelectricReference

Starter volts12Reference

Sparkplug gap0.635 mmReference

Oil capacity1.9 LReference

Transmission

hydrostaticReference

TransmissionSundstrandReference

Typeshaft-driven hydrostaticReference

Gearsinfinite forward and reverseReference

Oil capacity5.2 LReference

Oil typeSAE 5W-30Reference

PTO & Hydraulics

Rear Type0Reference

Front PTOindependentReference

ClutchelectricReference

Front PTO Type3600Reference

Dimensions

Wheelbase121 cmReference

Weight405 kgReference

Front tire16x6.50-8Reference

Rear tire23x8.50-10Reference

Lawn/turf front16x6.50-8Reference

Lawn/turf rear23x8.50-10Reference

Length189 cmReference

Width109 cmReference

Height (steering wheel)121 cmReference

Shipping weight405 kgReference

Ariens S-12H attachments

42" mid-mount mower deckReference

48" mid-mount mower deckReference

snowblowerReference

bladeReference

front-end loaderReference

S-12H Serial Numbers

Location:Serial number on the right side of the tractor frame, above the front axle.Reference

Electrical

GroundnegativeReference

Charging systemflywheel alternatorReference

Charging amps15Reference

Battery CCA255Reference

Battery volts12Reference

Battery AH39Reference

Attachment overview

42" mid-mount mower deckReference

48" mid-mount mower deckReference

SnowblowerReference

BladeReference

Front-end loaderReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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