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Lawn Tractor · 1989Unverified

Ingersoll 4020

Name: Ingersoll 4020
Brand: Ingersoll

Ingersoll 4020 — Garden tractor · 20 hp. Reference specifications; pending source verification.

The Ingersoll 4020 is a lawn tractor with a power rating of 20 hp, positioning it within the higher-powered models in its class. It was produced from 1989 to 2004 and features a 2-cylinder petrol air-cooled engine, delivering power through two-wheel drive. The specified weight of the 4020 ranges from 765 to 805 pounds. It is intended for use on areas of up to 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

765 to 805 pounds

Catalogue coverage

Variants represented

Richest spec table

71 rows

Recorded power

20 hp

Recorded weight

347 kg

Production years

1989-2004

Verified variants

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

Hover a source tag to verify

Overview

ManufacturerIngersollReference

Garden tractorReference

Built in Winneconne, Wisconsin, USAReference

Two-wheel driveReference

4020 SteeringmanualReference

4020PS SteeringpowerReference

Open operator station.Reference

Variants

4020PSpower steeringReference

Engine

20HP Onan 781cc 2-cyl gasolineReference

Fuel tank11.4 LReference

Onan P220GReference

gasolineReference

2-cylinderReference

air-cooled horizontal-shaft horizontally-opposedReference

Displacement47.7 ciReference

Bore/Stroke83 x 73 mmReference

Power (gross)14.9 kWReference

Compression7:1Reference

StarterelectricReference

Starter volts12Reference

SparkplugChampion RS14YCReference

Sparkplug gap0.635 mmReference

Intake valve clearance0.127 mmReference

Exhaust valve clearance0.330 mmReference

Transmission

hydraulic driveReference

TransmissionHy-DriveReference

Typehydraulic driveReference

Gearsinfinite forward and reverse (2-range)Reference

Oil change500 hReference

PTO & Hydraulics

Typeopen centerReference

Pressure144.8 barReference

Pressure39.6 barReference

Valves2Reference

4020 Pump flow30.3 lpmReference

4020PS Pump flow36.0 lpmReference

Rear Type0Reference

Front PTOindependentReference

ClutchelectricReference

Front PTO TypepulleyReference

Dimensions

Wheelbase121 cmReference

Weight765 to 805 poundsReference

Front tire16x6.50-8Reference

Rear tire32x8.00-16Reference

Lawn/turf front16x6.50-8Reference

Lawn/turf rear32x8.00-16Reference

Length182 cmReference

Width104 cmReference

Height (steering wheel)110 cmReference

Height (hood)97 cmReference

4020 Weight347 kgReference

4020PS Weight365 kgReference

Clearance (rear axle)27 cmReference

Front tread85 cmReference

Rear tread80 cmReference

Ingersoll 4020 attachments

44" mid-mount mower deckReference

48" mid-mount mower deckReference

60" mid-mount mower deckReference

snowblowerReference

bladeReference

4020 Serial Number Location

Serial number plate on the left side of the Ingersoll 4020 tractor frame, above the floor board.Reference

Electrical

GroundnegativeReference

Charging systemflywheel alternatorReference

Charging amps20Reference

Charging volts12Reference

Battery CCA300Reference

Battery volts12Reference

Attachment overview

44" mid-mount mower deckReference

48" mid-mount mower deckReference

60" mid-mount mower deckReference

SnowblowerReference

BladeReference

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

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