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Gravely 812

Gravely 812 tractor
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The Gravely 812 is a garden tractor produced from 1973 to 1978 as part of the 800 Series. It features a 12 hp Kohler K301 476cc 1-cylinder gasoline engine, an 8-speed shaft-driven gear transmission with 8 forward and 4 reverse gears, and a weight of 900 lbs (408 kg). It has two-wheel drive, manual steering, and an open operator station. The tractor supports various attachments including 40" and 50" mid-mount mower decks, snowblowers, and blades.
Gravely 812garden tractorKohler K301 engine12 hp800 Serieslawn tractormower decksnowblowerblade8-speed transmission
Power12 hp
Founded40/50" deck
Model812

Technical Specifications

Detailed specifications and technical data for Gravely 812

Engine

Type:gasoline
Model:Kohler K301
Power:12 hp (8.9 kW)
Cooling:air-cooled horizontal-shaft
Starter:electric
Cylinders:1-cylinder
Fuel tank:5.3 gal (20.1 L)
Rated RPM:3600
Bore/Stroke:3.25x3.37 inches (83 x 86 mm)
Displacement:476 cc (29.07 ci)
Oil capacity:2.5 qts (2.4 L)
Sparkplug gap:0.025 inches (0.635 mm)
Starter volts:12
Intake valve clearance:0.009 inches (0.229 mm)
Exhaust valve clearance:0.018 inches (0.457 mm)

Dimensions

Width:36.25 inches (92 cm)
Height:43 inches (109 cm)
Length:75.5 inches (191 cm)
Weight:900 lbs (408 kg)

Electrical

Ground:negative
Battery AH:43
Battery Group:22F
Battery volts:12

Production

Type:Garden tractor
Series:800 Series
Years produced:1973 - 1978

Attachments

48" Blade:Gravely, front-mount, 48 inches width (121 cm)
38" Snow blower:Gravely 20981, front-mount, 38 inches width (96 cm), 250 lbs (113 kg)
44" Snow blower:Gravely 20982, front-mount, 44 inches width (111 cm), 260 lbs (117 kg)
40" mid-mount mower deck:Gravely 21296, 40 inches (101 cm), 3-blade, manual lift, hydraulic lift (Optional)
50" mid-mount mower deck:Gravely 221297, 50 inches (127 cm), 3-blade, manual lift, hydraulic lift (Optional), 262 lbs (118 kg)

Transmission

Type:shaft-driven gear
Gears:8 forward and 4 reverse
Oil type:SAE30
Oil capacity:6 qts (5.7 L)

Related Models

Gravely 810

Model:810

Gravely 814

Model:814