The Gilson 420 is a snowmobile rated at 20 hp — putting it around the middle of its class for power. The 420 was manufactured in 1970. Power comes from a 1-cylinder petrol air-cooled engine, driving through a tracked undercarriage. Listed weight is 158 kg, and 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
20 hp
Weight
158 kg
Catalogue coverage
Variants represented
2
Richest spec table
23 rows
Recorded power
20 hp
Production years
1970-1970
Verified variants
0
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Overview
ManufacturerGilsonReference
SnowmobileReference
Built in Plymouth, Wisconsin, USAReference
TrackedReference
Manual steeringReference
Mechanical disc brakesReference
Suspensionbogie wheelReference
Engine
20HP Kohler 295cc 1-cyl gasolineReference
Fuel tank15.1 LReference
Kohler K295-1Reference
gasolineReference
1-cylinderReference
air-cooledReference
Displacement18 ciReference
Bore/Stroke75 x 67 mmReference
Power14.9 kWReference
Rated RPM6000Reference
Starter typemanual recoilReference
Dimensions
Weight158 kgReference
Length248 cmReference
Width82 cmReference
Height99 cmReference
Track width38 cmReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.
