8129 by Gravely lawn tractors
1980
Production
Gravely 8129 Engine
20.1 L
1980
| 1980 |
| 8000 Series |
| Garden tractor |
Engine Detail
| Engine Detail | |
| Kohler K301 | |
| gasoline | |
| 1-cylinder | |
| air-cooled horizontal-shaft | |
| Displacement | 476 cc 29.07 ci |
| Bore/Stroke | 3.375x3.25 inches 86 x 83 mm |
| Power | 12 hp 8.9 kW |
| Starter | electric |
| Starter volts | 12 |
Gravely 8129 Transmission
1980
| 1980 |
| 8000 Series |
| Garden tractor |
Transmission
| Transmission | |
| Type | shaft-driven gear |
| Gears | 8 forward and 4 reverse |
| Four gears (1-4) in two ranges (low-high) with forward/reverse clutches. The directional clutch must be in neutral to shift gears or ranges. | |
Speeds
| Speeds | |
Mechanical
Hydraulics
82.7 bar
6.4 lpm
Power Take-off (PTO)
Dimensions & Tires
132 cm
403 kg
1980
| 1980 |
| 8000 Series |
| Garden tractor |
Gravely 8129 Tires
| Gravely 8129 Tires | |
| Lawn/turf front | 16x6.50-8 |
| Lawn/turf rear | 23x8.50-12 |
Electrical
8129 relate tractors
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