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Lawn Tractor · 1980Unverified

Steiner S-20

Name: Steiner S-20
Brand: Steiner

Steiner S-20 — Garden tractor · 20 hp. Reference specifications; pending source verification.

The Steiner S-20 is a lawn tractor model with a 20 hp rated output, positioning it among the higher-powered machines in its class. Manufactured from 1980 to 1987, this model features a 2-cylinder diesel liquid-cooled engine and a hydrostatic transmission with four-wheel drive. Its listed weight ranges from 975 to 1010 pounds, and it is designed for use on areas of approximately 200 acres.

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

Rated power

20 hp

Weight

975 to 1010 pounds

Catalogue coverage

Variants represented

Richest spec table

57 rows

Recorded power

20 hp

Recorded weight

442 kg

Transmissions

hydrostatic

Production years

1980-1987

Verified variants

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

Hover a source tag to verify

Overview

ManufacturerSteinerReference

Garden tractorReference

Four-wheel driveReference

Articulated power steeringReference

Disc brakesReference

Open operator station.Reference

Engine

20HP Onan 781cc 2-cyl gasolineReference

Kubota 599cc 3-cyl dieselReference

Kubota 599cc 3-cyl gasolineReference

Fuel tank22.7 LReference

Onan B48GReference

gasolineReference

2-cylinderReference

air-cooled horizontal-shaft opposed twinReference

Displacement47.7 ciReference

Bore/Stroke83 x 73 mmReference

Power14.9 kWReference

Air cleanerpaper elementReference

Compression7:1Reference

Rated RPM3600Reference

StarterelectricReference

Starter volts12Reference

Oil capacity1.6 LReference

Onan P220Reference

Kubota D600-BReference

dieselReference

3-cylinderReference

liquid-cooledReference

Displacement36.6 ciReference

Bore/Stroke64 x 62 mmReference

Compression23:1Reference

Oil capacity2.9 LReference

Kubota WG600-BReference

Compression9.2:1Reference

Transmission

hydrostaticReference

TransmissionSundstrandReference

TypehydrostaticReference

Gearsinfinite forward and reverseReference

Sundstrand series 15 hydrostatic with Peerless 2500 two-speed transaxles.Reference

PTO & Hydraulics

Rear Type0Reference

Dimensions

Wheelbase96 cmReference

Weight975 to 1010 poundsReference

Front tire21x11.00-8Reference

Rear tire21x11.00-8Reference

Lawn/turf front21x11.00-8Reference

Lawn/turf rear21x11.00-8Reference

Length162 cmReference

Width111 cmReference

Height116 cmReference

Weight442 kgReference

Weight458 kgReference

Electrical

GroundnegativeReference

Charging systemflywheel alternatorReference

Charging amps15 (B48G)Reference

Charging amps20 (P220)Reference

Charging amps12.5 (Kubota)Reference

Battery volts12Reference

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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