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Simplicity 9020 PowrMax vs Simplicity Axion 18.5/33

Verdict: Simplicity 9020 PowrMax vs Simplicity Axion 18.5/33

The Simplicity 9020 PowrMax and the Simplicity Axion 18.5/33 are both lawn tractors — here is how they stack up on the figures that matter. Simplicity 9020 PowrMax leads on rated power with 20 hp against 19 hp. Simplicity Axion 18.5/33 is the lighter machine (226 kg vs 589 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Simplicity 9020 PowrMax holds more fuel (14.4 L vs 11.4 L) for longer stints between fills. Simplicity Axion 18.5/33 is the newer design (2010 vs 1975). In short: choose the Simplicity 9020 PowrMax for outright pulling power, or the Simplicity Axion 18.5/33 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

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Fit & specs
Simplicity 9020 PowrMax Lawn Tractor
Simplicity
62
Fit score
Best match
Clear
Simplicity Axion 18.5/33 Lawn Tractor
Simplicity
62
Fit score
Best match
Clear
Rated power
20 hp
19 hp
Confidence
40%
40%
Guide price
Overview
Manufacturer
SimplicityReference
Simplicity (a part of Briggs & Stratton)Reference
air-cooled horizontal-shaft opposed-twinReference
1-cylinderReference
Variants
720
similar Allis Chalmers modelReference
Twin 20
similar Montgomery Ward modelReference
Engine
Fuel tank
14.4 LReference
11.4 LReference
Displacement
49.8 ciReference
Bore/Stroke
83 x 76 mmReference
Power (gross)
14.5 kWReference
Air cleaner
paper elementReference
Compression
7:1Reference
Rated RPM
3600Reference
Idle RPM
1300-3850Reference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Sparkplug
Autolite AL5Reference
Sparkplug gap
0.635 mmReference
Point gap
0.508 mmReference
Oil capacity
5.7 LReference
Oil change
100 hReference
Power
13.8 kWReference
Transmission
Transmission
SundstrandReference
Hydro-Gear EZTReference
Gears
infinite forward and reverse (3-range)Reference
infinite forward and reverseReference
Oil type
DextronReference
PTO & Hydraulics
Pressure
34.5 barReference
Total flow
9.5 lpmReference
Rear Type
0Reference
Rear PTO
independentReference
Clutch
electricReference
electricReference
Rear PTO Type
2000Reference
Front PTO
independentReference
Front PTO Type
3600Reference
Mid PTO
independentReference
Dimensions
Wheelbase
142 cmReference
114 cmReference
Weight
131 kgReference
226 kgReference
Front tire
20x8.00-10Reference
11x4-4Reference
Rear tire
29x12.00-15Reference
18x8.50Reference
Ag front
6.00-9Reference
Ag rear
31.5-15.5Reference
Lawn/turf front
20x8.00-10Reference
11x4-4Reference
Lawn/turf rear
29x12.00-15Reference
18x8.50Reference
Length
210 cmReference
154 cmReference
Width
142 cmReference
Height (steering wheel)
121 cmReference
Shipping weight
589 kgReference
Clearance (front axle)
38 cmReference
Clearance (drawbar)
33 cmReference
Height
114 cmReference
Simplicity 9020 attachments
Electrical
Ground
negativeReference
negativeReference
Charging system
flywheel alternatorReference
Charging amps
20Reference
Charging volts
12Reference
Battery volts
12Reference
12Reference
Battery AH
45Reference
Battery CCA
230Reference
Attachment overview
60" Mower deck
Type
hydrostaticReference
hydrostaticReference
Cutting width
152 cmReference
83 cmReference
Overall width
180 cmReference
96 cmReference
Cut height
4 to 7 cmReference
3 to 9 cmReference
Simplicity Axion 18.5/33 attachments
33" Mower deck
Cut positions
infiniteReference

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.

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