Lawn Tractor · 1989Unverified
Ingersoll 4020
Ingersoll 4020 — Garden tractor · 20 hp. Reference specifications; pending source verification.
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
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.