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Simplicity 305 990554 vs Simplicity 450
Verdict: Simplicity 305 990554 vs Simplicity 450
The Simplicity 305 990554 and the Simplicity 450 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 5 hp. Simplicity 305 990554 is the newer design (1968 vs 1958). 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
Simplicity
62
Fit score
Best match
Clear
Simplicity
62
Fit score
Best match
Clear
Rated power
5 hp
5 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
Simplicity (a part of Allis Chalmers)Reference
SimplicityReference
air-cooled horizontal-shaftReference
air-cooledReference
Engine
Power
3.7 kWReference
—
Displacement
—
14.1 ciReference
Bore/Stroke
—
70 x 60 mmReference
Power (gross)
—
3.4 kWReference
Starter
—
electricReference
Starter volts
—
12Reference
Transmission
Gears
2 forward and 1 reverseReference
2 forward and reverseReference
Simplicity 305 attachments
24" Mower deck
Type
belt-driven gearReference
belt-driven gearReference
Cutting width
60 cmReference
60 cmReference
Cut height
5 to 7 cmReference
3 to 8 cmReference
Dimensions
Front tire
—
10x2.50Reference
Rear tire
—
4.00x8Reference
Lawn/turf front
—
10x2.50Reference
Lawn/turf rear
—
4.00x8Reference
Simplicity 450 attachments
Attachment overview
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.