Lawn Tractor · 1972Unverified
J.I. Case 446
J.I. Case 446 — Model year 1972-19761977-1988 · 16 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
16 hp
Weight
349 kg
Hover a source tag to verify
Overview
ManufacturerJ.I. CaseReference
Garden tractorReference
Built in Winneconne, Wisconsin, USAReference
Two-wheel driveReference
Manual steeringReference
Mechanical band brakesReference
Open operator station.Reference
Engine
16HP Onan 709cc 2-cyl gasolineReference
Onan B43MReference
gasolineReference
2-cylinderReference
air-cooled horizontal-shaftReference
Displacement43.3 ciReference
Bore/Stroke83 x 67 mmReference
Power (gross)11.9 kWReference
Compression7:1Reference
Rated RPM3600Reference
Starter volts12Reference
SparkplugChampion RH18YReference
Sparkplug gap0.635 mmReference
Point gap0.533 mmReference
Intake valve clearance0.127 mmReference
Exhaust valve clearance0.330 mmReference
Oil capacity1.9 LReference
Oil change25 hReference
Transmission
hydraulic driveReference
TransmissionHY-DriveReference
Typehydraulic driveReference
Gearsinfinite forward and reverse (2-range)Reference
The HY-Drive uses a fixed-displacement hydraulic pump to power a two-speed transaxle.Reference
1BrakeReference
2Forward/reverseReference
3ThrottleReference
4Range shiftReference
5Parking brakeReference
Capacities
Fuel11.4 LReference
PTO & Hydraulics
Hydraulic system6.1 LReference
Typeopen centerReference
Capacity6.1 LReference
Valves2Reference
Pump flow30.3 lpmReference
Dimensions
Wheelbase116 cmReference
Weight349 kgReference
Front tire6.50-8Reference
Rear tire8.00-16Reference
Lawn/turf front6.50-8Reference
Lawn/turf rear8.00-16Reference
Length182 cmReference
Width104 cmReference
Height (steering wheel)109 cmReference
Height (hood)97 cmReference
Shipping weight349 kgReference
Ground clearance27 cmReference
Front tread85 cmReference
Rear tread80 cmReference
J.I. Case 446 attachments
44" mid-mount mower deckReference
48" mid-mount mower deckReference
snowblowerReference
bladeReference
446 Serial Number Location
Serial number plate on instrument panel.Reference
446 Serial Numbers
19729668001Reference
19739678031Reference
19749694673Reference
19759713265Reference
19769727857Reference
19779740617Reference
19789754759Reference
19799767590Reference
19809785820Reference
198114009950Reference
198214025407Reference
198314040936Reference
198414060091Reference
198514073621Reference
198614095530Reference
198714112151Reference
198814112874Reference
FAQ: How to read a serial number table.Reference
Electrical
GroundnegativeReference
Charging amps15Reference
Battery volts12Reference
Battery AH24Reference
Attachment overview
44" mid-mount mower deckReference
48" 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.