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Lawn Tractor · 1972Unverified

J.I. Case 446

Name: J.I. Case 446
Brand: J.I. Case

J.I. Case 446 — Model year 1972-19761977-1988 · 16 hp. Reference specifications; pending source verification.

The J.I. Case 446 is a lawn tractor characterised by its 16 hp engine, a typical power rating for its class. Manufactured from 1972 to 1988, this model features a 2-cylinder petrol air-cooled engine and two-wheel drive. The operating weight of the J.I. Case 446 is 349 kg, and it is capable of handling operations 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

16 hp

Weight

349 kg

Catalogue coverage

Variants represented

Richest spec table

86 rows

Recorded power

16 hp

Recorded weight

349 kg

Transmissions

The HY-Drive uses a fixed-displacement hydraulic pump to power a two-speed transaxle.

Production years

1972-1988

Verified variants

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

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.

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