Lawn Tractor · 1973Unverified
Gravely 812
Gravely 812 — 800 Series · 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
Weight
408 kg
Hover a source tag to verify
Overview
ManufacturerGravelyReference
Garden tractorReference
Two-wheel driveReference
Manual steeringReference
Open operator station.Reference
Engine
12HP Kohler 476cc 1-cyl gasolineReference
Fuel tank20.1 LReference
Kohler K301Reference
gasolineReference
1-cylinderReference
air-cooled horizontal-shaftReference
Displacement29.07 ciReference
Bore/Stroke83 x 86 mmReference
Power8.9 kWReference
Rated RPM3600Reference
StarterelectricReference
Starter volts12Reference
Sparkplug gap0.635 mmReference
Intake valve clearance0.229 mmReference
Exhaust valve clearance0.457 mmReference
Oil capacity2.4 LReference
Transmission
8-speed gearReference
Typeshaft-driven gearReference
Gears8 forward and 4 reverseReference
Oil capacity5.7 LReference
Oil typeSAE30Reference
Dimensions
Weight408 kgReference
Front tire16x6.50-8Reference
Rear tire23x8.50-12Reference
Lawn/turf front16x6.50-8Reference
Lawn/turf rear23x8.50-12Reference
Length191 cmReference
Width92 cmReference
Height109 cmReference
Shipping weight408 kgReference
Gravely 812 attachments
40" mid-mount mower deckReference
50" mid-mount mower deckReference
snowblowerReference
bladeReference
812 Serial Numbers
Location:In front of, and below, air cleaner.Reference
Electrical
GroundnegativeReference
Battery volts12Reference
Battery AH43Reference
Battery Group22FReference
Attachment overview
40" mid-mount mower deckReference
50" 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.