Gravely lawn tractors
Gravely 818
The Gravely 818 is a garden tractor introduced in 1978 as part of the 800 Series. It features an 18 hp Onan B48M 781cc 2-cylinder air-cooled gasoline engine with electric start. The tractor has an 8-speed transmission with 8 forward and 4 reverse gears. It weighs 900 lbs (408 kg) and rides on 16x6.50-8 front and 23x8.50-12 rear lawn/turf tires. Attachments include a 50" mid-mount mower deck, 48" front blade, and 44" front snow blower. Electrical system is 12 volts with a 43 AH battery and negative ground.
Power18 hp
Founded50" deck
Model818
Technical Specifications
Detailed specifications and technical data for Gravely 818
Engine
| Type | gasoline |
|---|---|
| Model | Onan B48M |
| Cooling | air-cooled horizontal-shaft opposed-twin |
| Starter | electric |
| Cylinders | 2-cylinder |
| Fuel tank | 5.3 gal (20.1 L) |
| Bore/Stroke | 3.25x2.875 inches (83 x 73 mm) |
| Displacement | 781 cc (47.7 ci) |
| Oil capacity | 2.25 qts (2.1 L) |
| Power (gross) | 18 hp (13.4 kW) |
| Starter volts | 12 |
Dimensions
| Width | 41.75 inches (106 cm) |
|---|---|
| Height | 43 inches (109 cm) |
| Length | 81.5 inches (207 cm) |
| Rear tire | 23x8.50-12 |
| Front tire | 16x6.50-8 |
| Shipping weight | 900 lbs (408 kg) |
Electrical
| Ground | negative |
|---|---|
| Battery AH | 43 |
| Battery Group | 22F |
| Battery volts | 12 |
Production
| Type | Garden tractor |
|---|---|
| Series | 800 Series |
| Manufacturer | Gravely |
| Year introduced | 1978 |
Attachments
| Note | Garden tractors are capable of using tillers, plows, or other ground-engaging attachments. |
|---|---|
| 48" Blade | Gravely 19763, front-mount, 48 inches width (121 cm) |
| 44" Snow blower | Gravely 20982, front-mount, 44 inches width (111 cm) |
| 50" mid-mount mower deck | mid-mount Gravely 21297, 3-blade with hydraulic lift, Cutting width 50 inches (127 cm) |
Transmission
| Type | 8-speed |
|---|---|
| Gears | 8 forward and 4 reverse |
| Oil capacity | 6 qts (5.7 L) |