1978 - 1980
| 1978 - 1980 |
| Garden tractor |
| Roper built |
Series:
| Series: | GT/18 ← | GT/19.9 917.25708 |
1978 - 1980
| 1978 - 1980 |
| Garden tractor |
| Roper built |
Series:
Production
| Production |
| Distributor | Sears |
| Manufacturer | Roper |
| Type | Garden tractor |
| Original price | $2,579 (1979 ) |
Sears GT/18 Engine
| Sears GT/18 Engine |
| 18HP Onan 781cc 2-cyl gasoline |
| Fuel tank | 3.25 gal
12.3 L |
| Engine details ... |
Sears GT/18 Transmission
| Sears GT/18 Transmission |
| 6-speed gear |
| Transmission details ... |
Mechanical
| Mechanical |
| Chassis | 4x2 2WD |
| Steering | manual |
| Brakes | mechanical band |
| Cab | Open operator station. |
Power Take-off (PTO)
| Power Take-off (PTO) |
| Front PTO | independent |
| Clutch | mechanical |
Dimensions & Tires
| Dimensions & Tires |
| Weight | 619 lbs
280 kg |
| Front tire | 16x6.50-8 |
| Rear tire | 23x10.00-12 |
| Full dimensions and tires ... |
Electrical
| Electrical |
| Ground | negative |
| Charging system | alternator |
| Charging amps | 15 |
| Battery volts | 12 |
Production
| Production |
| Distributor | Sears |
| Manufacturer | Roper |
| Type | Garden tractor |
| Original price | $2,879 (1979 ) |
Sears GT/19.9 Engine
| Sears GT/19.9 Engine |
| 19.9HP Onan 855cc 2-cyl gasoline |
| Fuel tank | 3.25 gal
12.3 L |
| Engine details ... |
1978 - 1980
| 1978 - 1980 |
| Garden tractor |
| Roper built |
Series:
| Series: | GT/18 ← | GT/19.9 917.25708 |
Engine Detail
| Engine Detail |
| Onan N52M |
| gasoline |
| 2-cylinder |
| air-cooled horizontal-shaft opposed twin |
| Displacement | 855 cc
52.2 ci |
| Bore/Stroke | 3.5625x2.625 inches
90 x 67 mm |
| Power (gross) | 19.9 hp
14.8 kW |
| Compression | 6.5:1 |
| Rated RPM | 3600 |
| Starter | electric |
| Starter volts | 12 |
Engine Oil
| Engine Oil |
| |
| Oil capacity | 1.75 qts
1.7 L |
| Oil change | 25 h
|
Sears GT/19.9 Transmission
| Sears GT/19.9 Transmission |
| 6-speed gear |
| Transmission details ... |
1978 - 1980
| 1978 - 1980 |
| Garden tractor |
| Roper built |
Series:
| Series: | GT/18 ← | GT/19.9 917.25708 |
Transmission
| Transmission |
| Transmission | Peerless |
| Type | belt-driven gear |
| Gears | 6 forward and 2 reverse |
| Clutch | mechanical idler pulley |
| Oil capacity | 5 qts
4.7 L |
| Oil type | |
| Oil change | 480 h
|
| Three gears (1-3) plus reverse (R) in two ranges (low/high). |
Mechanical
| Mechanical |
| Chassis | 4x2 2WD |
| Steering | manual |
| Brakes | mechanical band |
| Cab | Open operator station. |
Power Take-off (PTO)
| Power Take-off (PTO) |
| Front PTO | independent |
| Clutch | mechanical |
Dimensions & Tires
| Dimensions & Tires |
| Weight | 636 lbs
288 kg |
| Front tire | 16x6.50-8 |
| Rear tire | 23x10.00-12 |
| Full dimensions and tires ... |
1978 - 1980
| 1978 - 1980 |
| Garden tractor |
| Roper built |
Series:
| Series: | GT/18 ← | GT/19.9 917.25708 |
Sears GT/19.9 Tires
| Sears GT/19.9 Tires |
| Lawn/turf front | 16x6.50-8 |
| Lawn/turf rear | 23x10.00-12 |
Electrical
| Electrical |
| Ground | negative |
| Charging system | alternator |
| Charging amps | 15 |
| Battery volts | 12 |
