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Gravely 817 vs Gravely 8179
Verdict: Gravely 817 vs Gravely 8179
The Gravely 817 and the Gravely 8179 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 17 hp. Gravely 8179 is the lighter machine (424 kg vs 435 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Gravely 8179 is the newer design (1980 vs 1977). 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
Gravely
62
Fit score
Best match
Clear
Gravely
62
Fit score
Best match
Clear
Rated power
17 hp
17 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
GravelyReference
GravelyReference
air-cooled horizontal-shaft opposed-twinReference
Four gears (1-4) in two ranges (low-high) with forward/reverse clutches. The directional clutch must be in neutral to shift gears or ranges.Reference
Engine
Fuel tank
20.1 LReference
20.1 LReference
Displacement
49.8 ciReference
49.8 ciReference
Bore/Stroke
76 x 83 mmReference
83 x 76 mmReference
Power (gross)
12.3 kWReference
12.3 kWReference
Rated RPM
3600Reference
3600Reference
Starter
electricReference
—
Starter volts
12Reference
12Reference
Oil capacity
5.7 LReference
5.7 LReference
Transmission
Gears
8 forward and 4 reverseReference
8 forward and 4 reverseReference
Oil type
—
10W-40 SCReference
Dimensions
Weight
114 kgReference
424 kgReference
Length
207 cmReference
210 cmReference
Width
106 cmReference
109 cmReference
Height
109 cmReference
112 cmReference
Shipping weight
435 kgReference
424 kgReference
Wheelbase
—
132 cmReference
Front tire
—
16x7.50-8Reference
Rear tire
—
23x10.50-12Reference
Lawn/turf front
—
16x7.50-8Reference
Lawn/turf rear
—
23x10.50-12Reference
Ground clearance
—
17 cmReference
Gravely 817 attachments
Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
Battery AH
—
42Reference
Battery Group
—
BCI 22FReference
Attachment overview
50" Mower deck
Type
shaft-driven gearReference
shaft-driven gearReference
Cutting width
127 cmReference
—
Cut height
3 to 10 cmReference
—
PTO & Hydraulics
Pressure
—
82.7 barReference
Pump flow
—
6.4 lpmReference
Mid PTO
—
independentReference
Clutch
—
mechanicalReference
Mid PTO Type
—
1000Reference
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.