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Lawn Tractor · 1967Unverified
Simplicity 404 990390
Simplicity 404 990390 — Wonder Boy Series · 4 hp. Reference specifications; pending source verification.
The Simplicity 404 990390 is a lawn tractor model with a 4 hp rated power output, making it a relatively lightweight model within its class. It was produced from 1967 to 1968 and features a 1-cylinder petrol air-cooled engine, paired with two-wheel drive and a 2-speed gearbox. The operating weight of this model is listed as 107 kg, and it is suitable for operations up to 200 acres.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
4 hp
Weight
107 kg
Catalogue coverage
Variants represented
2
Richest spec table
35 rows
Recorded power
4 hp
Transmissions
2-speed gear
Production years
1967-1968
Verified variants
0
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Overview
ManufacturerSimplicity (a part of Allis Chalmers)Reference
