Search/Lawn Tractor/Simplicity/9020 PowrMax

Embed

Paste on your site — shows live UK/US specs and links back here. Free to use.

<iframe src="https://farmfleetspecs.com/embed/simplicity-9020-powrmax" width="100%" height="430" loading="lazy" style="border:1px solid #e6e8e4;border-radius:14px;max-width:560px" title="Simplicity 9020 PowrMax specs — FarmFleetSpecs"></iframe>

Lawn Tractor · 1975Unverified

Simplicity 9020 PowrMax

Name: Simplicity 9020 PowrMax
Brand: Simplicity

Simplicity 9020 PowrMax — PowrMax Series · 20 hp. Reference specifications; pending source verification.

The Simplicity 9020 PowrMax is a lawn tractor with a rated output of 20 hp, a classification as a higher-powered machine in its class. Produced between 1975 and 1980, this model features a 2-cylinder petrol air-cooled engine, which powers a two-wheel drive system with a hydrostatic transmission. The listed weight of the Simplicity 9020 PowrMax is 589 kg, and it is suited to tasks covering approximately 200 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

20 hp

Weight

589 kg

Catalogue coverage

Variants represented

Richest spec table

84 rows

Recorded power

20 hp

Recorded weight

589 kg

Transmissions

hydrostatic

Production years

1975-1980

Verified variants

No linked source document is currently displayed; verify critical figures with the manufacturer or dealer.

Hover a source tag to verify

Overview

ManufacturerSimplicityReference

Garden tractorReference

Built in Port Washington, Wisconsin, USAReference

Two-wheel driveReference

Manual steeringReference

Disc brakesReference

Open operator station.Reference

Variants

720similar Allis Chalmers modelReference

Twin 20similar Montgomery Ward modelReference

Engine

19.5HP Onan 816cc 2-cyl gasolineReference

Fuel tank14.4 LReference

Onan CCKBReference

gasolineReference

2-cylinderReference

air-cooled horizontal-shaft opposed-twinReference

Displacement49.8 ciReference

Bore/Stroke83 x 76 mmReference

Power (gross)14.5 kWReference

Air cleanerpaper elementReference

Compression7:1Reference

Rated RPM3600Reference

Idle RPM1300-3850Reference

StarterelectricReference

Starter volts12Reference

SparkplugChampion H-8Reference

SparkplugAutolite AL5Reference

Sparkplug gap0.635 mmReference

Point gap0.508 mmReference

Oil capacity3.8 LReference

Oil change100 hReference

Transmission

hydrostaticReference

TransmissionSundstrandReference

TypehydrostaticReference

Gearsinfinite forward and reverse (3-range)Reference

Oil capacity5.7 LReference

Oil typeATF AATF FDextronReference

Oil typeATF AReference

Oil typeATF FReference

Oil typeDextronReference

PTO & Hydraulics

Pressure34.5 barReference

Total flow9.5 lpmReference

Rear Type0Reference

Rear PTOindependentReference

ClutchelectricReference

Rear PTO Type2000Reference

Front PTOindependentReference

Front PTO Type3600Reference

Dimensions

Wheelbase142 cmReference

Weight589 kgReference

Front tire20x8.00-10Reference

Rear tire29x12.00-15Reference

Weight131 kgReference

Ag front4.00-12Reference

Ag rear8.00-16Reference

Ag front6.00-9Reference

Ag rear31.5-15.5Reference

Lawn/turf front20x8.00-10Reference

Lawn/turf rear29x12.00-15Reference

Length210 cmReference

Width142 cmReference

Height (steering wheel)121 cmReference

Shipping weight589 kgReference

Clearance (front axle)38 cmReference

Clearance (drawbar)33 cmReference

Simplicity 9020 attachments

60" mid-mount mower deckReference

snowblowerReference

bladeReference

front-end loaderReference

Electrical

GroundnegativeReference

Charging systemflywheel alternatorReference

Charging amps20Reference

Charging volts12Reference

Battery volts12Reference

Battery AH45Reference

Attachment overview

60" mid-mount mower deckReference

SnowblowerReference

BladeReference

Front-end loaderReference

Tillage tools for the Simplicity PowrMax 9020 included a 54-inch cultivator, 12-inch plow, and 48-inch tiller. A 48-inch rear-mounted rotary mower or 57-inch sickle bar mower, or belly mower could be used. An aircraft towing hitch was advertised, which would tow planes weighing up to 25,000 pounds.Reference

60" Mower deck

Typemid-mount SimplicityReference

Type3-blade with hydraulic liftReference

Cutting width152 cmReference

Overall width180 cmReference

Cut height4 to 7 cmReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

Partner tool · Free

Working out if you can afford this tractor?

YourIncomeCalculator.com — free, HMRC-aligned take-home pay, self-employment & VAT calculators. No sign-up.

Calculate your take-home pay

Recommended kit

Handy kit for owners

Popular tractor and farm accessories owners pick up for machines like this.

Disclosure: some links on this page are affiliate links. If you buy through them we may earn a small commission — at no extra cost to you. Learn more.