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Gravely 816 vs Gravely 817
Verdict: Gravely 816 vs Gravely 817
The Gravely 816 and the Gravely 817 are both lawn tractors — here is how they stack up on the figures that matter. Both are rated at the same 17 hp. Gravely 817 is the newer design (1977 vs 1972). 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
The B43M was used on the Gravely 816 for the final production year, in 1978.Reference
air-cooled horizontal-shaft opposed-twinReference
Engine
Fuel tank
20.1 LReference
20.1 LReference
Displacement
43.7 ciReference
49.8 ciReference
Bore/Stroke
83 x 67 mmReference
76 x 83 mmReference
Power
11.9 kWReference
—
Rated RPM
3600Reference
3600Reference
Starter
electricReference
electricReference
Starter volts
12Reference
12Reference
Sparkplug gap
0.635 mmReference
—
Intake valve clearance
0.279 mmReference
—
Exhaust valve clearance
0.279 mmReference
—
Oil capacity
5.7 LReference
5.7 LReference
Power (gross)
—
12.3 kWReference
Transmission
Type
shaft-driven gearReference
shaft-driven gearReference
Gears
8 forward and 4 reverseReference
8 forward and 4 reverseReference
Oil type
SAE30Reference
—
Dimensions
Weight
435 kgReference
114 kgReference
Front tire
16x6.50-8Reference
—
Rear tire
23x8.50-12Reference
—
Lawn/turf front
16x6.50-8Reference
—
Lawn/turf rear
23x8.50-12Reference
—
Length
191 cmReference
207 cmReference
Width
106 cmReference
106 cmReference
Height
109 cmReference
109 cmReference
Shipping weight
435 kgReference
435 kgReference
Gravely 816 attachments
816 Serial Numbers
Location:
In front of, and below, air cleaner.Reference
—
Electrical
Ground
negativeReference
negativeReference
Battery volts
12Reference
12Reference
Battery AH
43Reference
—
Battery Group
22FReference
—
Attachment overview
Gravely 817 attachments
50" Mower deck
Cutting width
—
127 cmReference
Cut height
—
3 to 10 cmReference
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.