Compare/Simplicity 400 990234 vs Simplicity Wonder Boy II

Simplicity 400 990234 vs Simplicity Wonder Boy II

Verdict: Simplicity 400 990234 vs Simplicity Wonder Boy II

The Simplicity 400 990234 and the Simplicity Wonder Boy II are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 4 hp. Simplicity 400 990234 is the newer design (1961 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.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Simplicity

Fit score

Best match

Clear

Simplicity

Fit score

Best match

Clear

Rated power

4 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

SimplicityReference

air-cooledReference

Engine

Power

3.0 kWReference

Starter type

manual recoilReference

electricReference

Displacement

—

10.2 ciReference

Bore/Stroke

—

63 x 54 mmReference

Transmission

Gears

2 forward and reverseReference

Transmission

—

DuomaticReference

Dimensions

Front tire

10x2.50Reference

Rear tire

4.00x8Reference

Weight

27 kgReference

—

Lawn/turf front

10x2.50Reference

Lawn/turf rear

4.00x8Reference

Simplicity 400 attachments

24" Mower deck

Type

belt-driven gearReference

Cutting width

60 cmReference

Cut height

3 to 6 cmReference

3 to 8 cmReference

Variants

990119

—

manual startReference

990120

—

electric startReference

Simplicity Wonder Boy II 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.