Compare/Sears GT/18 vs Sears SS/18 Twin 917.25960

Sears GT/18 vs Sears SS/18 Twin 917.25960

Verdict: Sears GT/18 vs Sears SS/18 Twin 917.25960

The Sears GT/18 and the Sears SS/18 Twin 917.25960 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 320 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Sears SS/18 Twin 917.25960 holds more fuel (13.2 L vs 12.3 L) for longer stints between fills. Sears GT/18 is the newer design (1978 vs 1976). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Sears

Fit score

Best match

Clear

Sears

Fit score

Best match

Clear

Rated power

18 hp

Confidence

40%

Guide price

—

Overview

Distributor

SearsReference

Manufacturer

RoperReference

air-cooled horizontal-shaft opposed twinReference

Three gears (1-3) plus reverse (R) with two ranges (low/high).Reference

Variants

GT/18

gearReference

—

GT18H

hydrostaticReference

—

Engine

Fuel tank

12.3 LReference

13.2 LReference

Displacement

47.7 ciReference

49.8 ciReference

Bore/Stroke

83 x 73 mmReference

83 x 76 mmReference

Power (gross)

13.4 kWReference

Starter

electricReference

Starter volts

12Reference

Oil capacity

4.7 LReference

—

Oil change

480 hReference

—

Transmission

PeerlessReference

—

Type

belt-driven gearReference

Gears

6 forward and 2 reverseReference

Oil type

SAE 30Reference

—

PTO & Hydraulics

Front PTO

independentReference

—

Clutch

mechanical idler pulleyReference

—

Dimensions

Weight

280 kgReference

320 kgReference

Front tire

16x6.50-8Reference

Rear tire

23x10.00-12Reference

Lawn/turf front

16x6.50-8Reference

Lawn/turf rear

23x10.00-12Reference

Length

173 cmReference

Width

92 cmReference

Height

101 cmReference

—

Shipping weight

280 kgReference

320 kgReference

Height (steering wheel)

—

105 cmReference

Sears GT/18 attachments

GT/18 Serial Numbers

1978

917.25706 (model code)Reference

—

1979

917.25711 (model code)Reference

—

Electrical

Ground

negativeReference

Charging system

alternatorReference

—

Charging amps

15Reference

—

Battery volts

12Reference

Attachment overview

Sears SS/18 Twin 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.