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Simplicity Express 15.5H vs Simplicity Sovereign 3416S 990872
Verdict: Simplicity Express 15.5H vs Simplicity Sovereign 3416S 990872
The Simplicity Express 15.5H and the Simplicity Sovereign 3416S 990872 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 16 hp. Simplicity Sovereign 3416S 990872 holds more fuel (11.4 L vs 7.6 L) for longer stints between fills. Simplicity Express 15.5H is the newer design (1999 vs 1973). 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
16 hp
16 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
SimplicityReference
SimplicityReference
air-cooled vertical-shaftReference
air-cooled horizontal-shaftReference
Engine
Fuel tank
7.6 LReference
11.4 LReference
Displacement
28.4 ciReference
32.4 ciReference
Bore/Stroke
87 x 78 mmReference
90 x 83 mmReference
Power (gross)
11.6 kWReference
11.9 kWReference
Rated RPM
3600Reference
—
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Oil capacity
2.4 LReference
—
Transmission
Transmission
Tuff Torq K51Reference
—
Gears
infinite forward and reverseReference
4 forward and reverseReference
Oil type
SAE 10W-30 SG/CDReference
—
Oil change
250 hReference
—
PTO & Hydraulics
Mid PTO
independentReference
independentReference
Clutch
manualReference
mechanial idler pulleyReference
Dimensions
Weight
36 kgReference
—
Front tire
15x6.0-6Reference
16x6.50-8Reference
Rear tire
18x8.5-8Reference
23x10.50-12Reference
Lawn/turf front
15x6.0-6Reference
16x6.50-8Reference
Lawn/turf rear
18x8.5-8Reference
23x10.50-12Reference
Length
172 cmReference
170 cmReference
Width
91 cmReference
91 cmReference
Height (steering wheel)
104 cmReference
99 cmReference
Height (hood)
86 cmReference
—
Wheelbase
—
121 cmReference
Simplicity Express 15.5H attachments
Express 15.5H Serial Number Location
Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
Attachment overview
38" Mower deck
Type
belt-driven hydrostaticReference
shuttleReference
Cutting width
96 cmReference
—
Overall width
125 cmReference
—
Cut height
3 to 9 cmReference
—
Variants
3416S
—
shuttleReference
3416H
—
hydrostaticReference
Simplicity 3416S attachments
3416S Serial Number Location
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.