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Lawn Tractor · 1968Unverified
Simplicity 305 990554
Simplicity 305 990554 — Wonder Boy Series · 5 hp. Reference specifications; pending source verification.
The Simplicity 305 990554 is a lawn tractor with a rating of approximately 5 hp, positioning it within the lighter end of its class. Produced from 1968 to 1971, this model features a 1-cylinder petrol air-cooled engine, paired with two-wheel drive and a 2-speed gearbox. It is suitable for operations on land areas of up to 200 acres. The model's specifications are detailed in the accompanying table.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
5 hp
Catalogue coverage
Variants represented
2
Richest spec table
21 rows
Recorded power
5 hp
Transmissions
2-speed gear
Production years
1968-1971
Verified variants
0
No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.
Hover a source tag to verify
Overview
ManufacturerSimplicity (a part of Allis Chalmers)Reference
Riding lawn mowerReference
Built in Port Washington, Wisconsin, USAReference
Original price was $330 in 1969Reference
Two-wheel driveReference
Manual steeringReference
Open operator station.Reference
Engine
5HP Briggs & Stratton 1-cyl gasolineReference
Briggs & StrattonReference
gasolineReference
1-cylinderReference
air-cooled horizontal-shaftReference
Power3.7 kWReference
Transmission
2-speed gearReference
Typebelt-driven gearReference
Gears2 forward and 1 reverseReference
Simplicity 305 attachments
24" mid-mount mower deckReference
24" Mower deck
Typemid-mount SimplicityReference
Type1-bladeReference
Cutting width60 cmReference
Cut height5 to 7 cmReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
