Compare/Simplicity 401 990357 vs Simplicity 404 990390

Simplicity 401 990357 vs Simplicity 404 990390

Verdict: Simplicity 401 990357 vs Simplicity 404 990390

The Simplicity 401 990357 and the Simplicity 404 990390 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 4 hp. Simplicity 404 990390 is the newer design (1967 vs 1965). 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

Simplicity (a part of Allis Chalmers)Reference

air-cooledReference

Image courtesy of Jeremy LinkowskiReference

Engine

Power

3.0 kWReference

—

Starter type

manual recoilReference

Displacement

—

10.4 ciReference

Bore/Stroke

—

64 x 54 mmReference

Power (gross)

—

3.0 kWReference

Transmission

Gears

2 forward and reverseReference

2 forward and 1 reverseReference

Simplicity 401 attachments

24" Mower deck

Type

belt-driven gearReference

Cutting width

60 cmReference

Cut height

—

4 to 6 cmReference

Dimensions

Weight

—

27 kgReference

Front tire

—

10x2.75Reference

Rear tire

—

13x5.00-6Reference

Lawn/turf front

—

10x2.75Reference

Lawn/turf rear

—

13x5.00-6Reference

Shipping weight

—

107 kgReference

Simplicity 404 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.