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Gravely 8171 vs Gravely 8179-G
Verdict: Gravely 8171 vs Gravely 8179-G
The Gravely 8171 and the Gravely 8179-G are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 17 hp. Gravely 8171 is the lighter machine (424 kg vs 854 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Gravely 8179-G is the newer design (1986 vs 1978). 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
Gravely (a part of Ariens)Reference
Four gears (1-4) in two ranges (low/high) with directional control lever (forward/reverse). Reverse speeds are the same in high or low range.Reference
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
Displacement
49.8 ciReference
42.18 ciReference
Bore/Stroke
76 x 83 mmReference
79 x 70 mmReference
Power (gross)
12.3 kWReference
12.7 kWReference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Oil capacity
1.9 LReference
5.7 LReference
Rated RPM
—
3600Reference
Transmission
Gears
8 forward and 4 reverseReference
8 forward and 4 reverseReference
Capacities
Fuel
20.1 LReference
20.1 LReference
PTO & Hydraulics
Hydraulic system
1.4 LReference
0.9 LReference
Type
shaft-driven gearReference
shaft-driven gearReference
Capacity
1.4 LReference
0.9 LReference
Pressure
82.7 barReference
—
Pump flow
6.4 lpmReference
—
Mid PTO
independentReference
independentReference
Clutch
mechanicalReference
—
Oil type
—
10W-40 SCReference
Dimensions
Wheelbase
121 cmReference
132 cmReference
Weight
424 kgReference
387 kgReference
Front tire
16x7.50-8Reference
16x7.50-8Reference
Rear tire
23x10.50-12Reference
23x10.50-12Reference
Lawn/turf front
16x7.50-8Reference
16x7.50-8Reference
Lawn/turf rear
23x10.50-12Reference
23x10.50-12Reference
Length
191 cmReference
208 cmReference
Width
106 cmReference
109 cmReference
Height
109 cmReference
116 cmReference
Shipping weight
424 kgReference
405 kgReference
Ground clearance
17 cmReference
—
Electrical
Ground
negativeReference
negativeReference
Charging system
flywheel alternatorReference
—
Charging amps
15Reference
—
Battery volts
12Reference
12Reference
Battery AH
42Reference
42Reference
Battery Group
—
BCI 22FReference
Gravely 8179-G attachments
8179-G Serial Numbers
Location:
—
Under hood on right side, on instrument panel support frame.Reference
Attachment overview
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.