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Sears GT/18 vs Sears GT/18 Hydro 917.25707
Verdict: Sears GT/18 vs Sears GT/18 Hydro 917.25707
The Sears GT/18 and the Sears GT/18 Hydro 917.25707 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 18 hp. Sears GT/18 is the lighter machine (280 kg vs 312 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Sears GT/18 holds more fuel (12.3 L vs 7.6 L) for longer stints between fills. Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
Sears
62
Fit score
Best match
Clear
Sears
62
Fit score
Best match
Clear
Rated power
18 hp
18 hp
Confidence
40%
40%
Guide price
—
—
Overview
Distributor
SearsReference
SearsReference
Manufacturer
RoperReference
RoperReference
air-cooled horizontal-shaft opposed twinReference
air-cooled horizontal-shaft opposed twinReference
Variants
GT/18
gearReference
gearReference
GT18H
hydrostaticReference
hydrostaticReference
Engine
Fuel tank
12.3 LReference
7.6 LReference
Displacement
47.7 ciReference
47.7 ciReference
Bore/Stroke
83 x 73 mmReference
83 x 73 mmReference
Power (gross)
13.4 kWReference
13.4 kWReference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Oil capacity
4.7 LReference
4.3 LReference
Oil change
480 hReference
25 hReference
Transmission
Transmission
PeerlessReference
—
Type
belt-driven gearReference
belt-driven hydrostaticReference
Gears
6 forward and 2 reverseReference
infinite forward and reverseReference
Oil type
SAE 30Reference
Type F ATFReference
PTO & Hydraulics
Front PTO
independentReference
—
Clutch
mechanical idler pulleyReference
—
Dimensions
Weight
280 kgReference
312 kgReference
Front tire
16x6.50-8Reference
16x6.50-8Reference
Rear tire
23x10.00-12Reference
23x10.00-12Reference
Lawn/turf front
16x6.50-8Reference
16x6.50-8Reference
Lawn/turf rear
23x10.00-12Reference
23x10.00-12Reference
Length
173 cmReference
173 cmReference
Width
92 cmReference
92 cmReference
Height
101 cmReference
105 cmReference
Shipping weight
280 kgReference
312 kgReference
Sears GT/18 attachments
GT/18 Serial Numbers
1978
917.25706 (model code)Reference
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1979
917.25711 (model code)Reference
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Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
—
Charging amps
15Reference
—
Battery volts
12Reference
12Reference
Attachment overview
Sears GT/18 Hydro attachments
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.