Sears GT/18 Hydro 917.25707
The Sears GT/18 Hydro 917.25707 is a tractor produced by Sears Lawn Tractors. It is equipped with a 781 cc 47.7 ci engine. The rated power output is 18 hp 13.4 kW. Transmission: infinite forward and reverse. Operating weight: 688 lbs 312 kg.
Engine Power
18 hp
13.4 kW
Fuel & Capacities
2 gal
7.6 L
Transmission
infinite forward and reverse
Operating Weight
688 lbs
312 kg
Sears Lawn Tractors Sears GT/18 Hydro 917.25707 Serial Number & Year Decoder
Find the exact manufacture year of your tractor by checking your chassis serial number below.
Where to Find the Serial NumberThe serial number plate is commonly located on the front frame, tractor transmission housing (right side), or instrument panel badge.
Overview
 | 1978
Garden tractorRoper built |
|---|---|
1978 | |
Garden tractor | |
Roper built | |
1978 | |
|---|---|
Garden tractor | |
Roper built |
Production | |
|---|---|
Distributor | Sears |
Manufacturer | Roper |
Garden tractor | |
Original price was $2,479 in 1978 | |
Variants | |
|---|---|
GT/18 | gear |
GT18H | hydrostatic |
Sears GT/18 Hydro Engine | |
|---|---|
18HP Onan 781cc 2-cyl gasoline | |
Fuel tank | 2 gal
7.6 L |
Engine details ...  | |
Sears GT/18 Hydro Transmission | |
|---|---|
hydrostatic | |
Transmission details ...  |
Mechanical | |
|---|---|
Two-wheel drive | |
Manual steering | |
Open operator station. |
Dimensions & Tires | |
|---|---|
Weight | 688 lbs
312 kg |
Front tire | 16x6.50-8 |
Rear tire | 23x10.00-12 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
References | |
|---|---|
 | |
Owner's Manual 18H.P. Twin Hydro Garden Tractor published in 1978 | |
Spring/Summer Catalog published in 1978, by Sears |
Engine
| 1978
Garden tractorRoper built |
|---|---|
1978 | |
Garden tractor | |
Roper built | |
1978 | |
|---|---|
Garden tractor | |
Roper built |
Engine Detail — 781 cc / 47.7 ci Gasoline
Manufacturer | Onan B48M |
Fuel Type | Gasoline |
Configuration | 2-cylinder, air-cooled horizontal-shaft opposed twin |
Displacement | 781 cc
47.7 ci |
Bore/Stroke | 3.25x2.875 inches
83 x 73 mm |
Power (gross) | 18 hp
13.4 kW |
Starter | electric |
Starter volts | 12 |
Oil capacity | 1.75 qts
1.7 L |
Oil change | 25 h |
Transmission
| 1978
Garden tractorRoper built |
|---|---|
1978 | |
Garden tractor | |
Roper built | |
1978 | |
|---|---|
Garden tractor | |
Roper built |
Transmission — infinite forward and reverse belt-driven hydrostatic
Type | belt-driven hydrostatic |
Gears | infinite forward and reverse |
Oil capacity | 4.5 qts
4.3 L |
Oil type | Type F ATF |
 | |
Type F ATF |
|---|
Dimensions
| 1978
Garden tractorRoper built |
|---|---|
1978 | |
Garden tractor | |
Roper built | |
1978 | |
|---|---|
Garden tractor | |
Roper built |
Sears GT/18 Hydro Tires | |
|---|---|
Lawn/turf front | 16x6.50-8 |
Lawn/turf rear | 23x10.00-12 |
Dimensions | |
|---|---|
Length | 68.5 inches
173 cm |
Width | 36.5 inches
92 cm |
Height | 41.4 inches
105 cm |
Shipping weight | 688 lbs
312 kg |
Attachments
| 1978
Garden tractorRoper built |
|---|---|
1978 | |
Garden tractor | |
Roper built | |
1978 | |
|---|---|
Garden tractor | |
Roper built |
Attachment overview | |
|---|---|
42" mid-mount mower deck | |
48" mid-mount mower deck | |
Snowblower | |
Blade | |
Front-end loader | |
Garden tractors are capable of using tillers, plows, or other ground-engaging attachments. TractorData does not list details of these attachments. |
Photos
Sears GT/18 Hydro 917.25707 tractor photo
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