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Sears 309 vs Sears 399 Hillary
Verdict: Sears 309 vs Sears 399 Hillary
The Sears 309 and the Sears 399 Hillary are both snowmobiles — here is how they stack up on the figures that matter. Sears 399 Hillary leads on rated power with 23 hp against 18 hp. In short: choose the Sears 399 Hillary for outright pulling power, or the Sears 309 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.
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Fit & specs
Sears
62
Fit score
Best match
Clear
Sears
62
Fit score
Best match
Clear
Rated power
18 hp
23 hp
Confidence
40%
40%
Guide price
—
—
Overview
Distributor
SearsReference
SearsReference
Manufacturer
OMCReference
OMCReference
air-cooledReference
air-cooledReference
Suspension
bogie wheelsReference
bogie wheelsReference
Engine
Fuel tank
17.0 LReference
17.0 LReference
Displacement
18.9 ciReference
24.4 ciReference
Bore/Stroke
75 x 70 mmReference
65 x 60 mmReference
Power
13.4 kWReference
17.2 kWReference
Cooling system
fanReference
fanReference
Compression
11.5:1Reference
11.5:1Reference
Rated RPM
5500Reference
5500Reference
Starter type
manual-recoilReference
—
Starter
—
electricReference
Starter volts
—
12Reference
Dimensions
Length
255 cmReference
255 cmReference
Width
81 cmReference
81 cmReference
Height
114 cmReference
114 cmReference
Track width
39 cmReference
52 cmReference
309 Serial Numbers
Location:
Serial number plate on the right side of the tunnel towards the rear.Reference
Serial number plate on the right side of the tunnel towards the rear.Reference
399 Serial Numbers
Electrical
Ground
—
negativeReference
Battery volts
—
12Reference
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.