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Roper GT18 vs Roper GTK18
Verdict: Roper GT18 vs Roper GTK18
The Roper GT18 and the Roper GTK18 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 18 hp. Roper GTK18 is the newer design (1988 vs 1984). 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
Roper
62
Fit score
Best match
Clear
Roper
62
Fit score
Best match
Clear
Rated power
18 hp
18 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
RoperReference
RoperReference
air-cooled horizontal-shaftReference
air-cooled horizontal-shaft opposed-twinReference
Variants
GT18
BriggsReference
BriggsReference
GTK18
KohlerReference
KohlerReference
Engine
Fuel tank
11.4 LReference
—
Displacement
42.33 ciReference
42.18 ciReference
Bore/Stroke
87 x 58 mmReference
79 x 70 mmReference
Power (gross)
13.4 kWReference
13.4 kWReference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Transmission
Gears
6 forward and 2 reverseReference
6 forward and 2 reverseReference
PTO & Hydraulics
Type
belt-driven gearReference
belt-driven gearReference
Front PTO
independentReference
—
Clutch
electricReference
—
Dimensions
Wheelbase
115 cmReference
—
Front tire
16x6.50Reference
16x6.5-8Reference
Rear tire
23x10.50Reference
23x10.5-12Reference
Lawn/turf front
16x6.50Reference
16x6.5-8Reference
Lawn/turf rear
23x10.50Reference
23x10.5-12Reference
Roper GT18 attachments
GT18 Serial Numbers
Location:
Serial number decal on the GT180's rear fender, below the seat.Reference
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Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
Battery AH
30Reference
—
Attachment overview
44" Mower deck
Cutting width
111 cmReference
127 cmReference
Cut height
3 to 11 cmReference
—
Roper GTK18 attachments
50" Mower deck
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.