Lawn Tractor · 1972Unverified
Gravely 816
Gravely 816 — 800 Series · 17 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
17 hp
Weight
435 kg
Hover a source tag to verify
Overview
ManufacturerGravelyReference
Garden tractorReference
Two-wheel driveReference
Manual steeringReference
Open operator station.Reference
Engine
16.5HP Onan 816cc 2-cyl gasolineReference
16HP Onan 716cc 2-cyl gasolineReference
Fuel tank20.1 LReference
Onan CCKAReference
gasolineReference
2-cylinderReference
air-cooled horizontal-shaft opposed-twinReference
The CCKA was used for the first seven years of production on the 816, up until 1978.Reference
Displacement49.80 ciReference
Bore/Stroke76 x 83 mmReference
Power12.3 kWReference
Rated RPM3600Reference
StarterelectricReference
Starter volts12Reference
Sparkplug gap0.635 mmReference
Intake valve clearance0.279 mmReference
Exhaust valve clearance0.279 mmReference
Oil capacity1.9 LReference
Onan B43MReference
air-cooledReference
The B43M was used on the Gravely 816 for the final production year, in 1978.Reference
Displacement43.7 ciReference
Bore/Stroke83 x 67 mmReference
Power11.9 kWReference
Transmission
8-speed gearReference
Typeshaft-driven gearReference
Gears8 forward and 4 reverseReference
Oil capacity5.7 LReference
Oil typeSAE30Reference
Dimensions
Weight435 kgReference
Front tire16x6.50-8Reference
Rear tire23x8.50-12Reference
Lawn/turf front16x6.50-8Reference
Lawn/turf rear23x8.50-12Reference
Length191 cmReference
Width106 cmReference
Height109 cmReference
Shipping weight435 kgReference
Gravely 816 attachments
40" mid-mount mower deckReference
50" mid-mount mower deckReference
snowblowerReference
bladeReference
816 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.