The Sears 309 is a snowmobile model rated at 18 hp — making it one of the more compact options in its class. The 309 was manufactured in 1969. Power comes from a 1-cylinder petrol air-cooled engine, driving through a tracked undercarriage. It is aimed at jobs of around up to 200 ac. Detailed specifications in both UK and US units follow below.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
18 hp
Catalogue coverage
Variants represented
2
Richest spec table
27 rows
Recorded power
18 hp
Production years
1969-1969
Verified variants
0
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Overview
DistributorSearsReference
ManufacturerOMCReference
SnowmobileReference
Built in Manawa, Wisconsin, USAReference
Original price was $879 in 1969Reference
TrackedReference
Manual steeringReference
Mechanical disc brakesReference
Suspensionbogie wheelsReference
Engine
18HP Kohler 309cc 1-cyl gasolineReference
Fuel tank17.0 LReference
Kohler K309Reference
gasolineReference
1-cylinderReference
air-cooledReference
Displacement18.9 ciReference
Bore/Stroke75 x 70 mmReference
Power13.4 kWReference
Cooling systemfanReference
Compression11.5:1Reference
Rated RPM5500Reference
Starter typemanual-recoilReference
Dimensions
Length255 cmReference
Width81 cmReference
Height114 cmReference
Track width39 cmReference
309 Serial Numbers
Location:Serial number plate on the right side of the tunnel towards the rear.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
