Lawn Tractor · 1966Unverified
Jacobsen Chief-O-Matic 1200 53090
Jacobsen Chief-O-Matic 1200 53090 — Garden tractor · 12 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
12 hp
Hover a source tag to verify
Overview
ManufacturerJacobsenReference
Garden tractorReference
Built in Racine, Wisconsin, USAReference
Two-wheel driveReference
Manual steeringReference
Mechanical band brakesReference
Open operator station.Reference
Engine
12HP Kohler 476cc 1-cyl gasolineReference
Kohler K301Reference
gasolineReference
1-cylinder horizontal-shaft-valveReference
air-cooledReference
Displacement29.07 ciReference
Bore/Stroke86 x 83 mmReference
Power8.9 kWReference
Air cleanerdryReference
Rated RPM3600Reference
StarterelectricReference
Starter volts12Reference
Transmission
hydrostaticReference
Typebelt-driven hydrostaticReference
Gearsinfinite forward and reverseReference
Dimensions
Wheelbase106 cmReference
Length154 cmReference
Width83 cmReference
Height (steering wheel)99 cmReference
Height (hood)87 cmReference
Ground clearance29 cmReference
Clearance (front axle)22 cmReference
Clearance (rear axle)15 cmReference
Front tread76 cmReference
Rear tread80 cmReference
Jacobsen Chief-O-Matic 1200 attachments
36" mid-mount mower deckReference
42" mid-mount mower deckReference
48" mid-mount mower deckReference
snowblowerReference
bladeReference
front-end loaderReference
Chief-O-Matic 1200 Serial Number Location
Serial number plate on the left-front side of tractor, above the front axle.Reference
Electrical
GroundnegativeReference
Battery volts12Reference
Attachment overview
36" mid-mount mower deckReference
42" mid-mount mower deckReference
48" mid-mount mower deckReference
SnowblowerReference
BladeReference
Front-end loaderReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.