For those wanting to drive a .40 2 stroke model with a four stroke this is the answer. The latest generation of OS four strokes have the power torque and performance that bring them close to 2 stroke levels, and of course you have that superb rich, deep realistic sound that only a four stroke can give.
Compact, powerful with legendary OS reliability and quality.
Supplied complete with silencer.
A superb engine that will give years of trouble free life. It is after all an O.S.!
To download a PDF of the parts listing please click here
Spares and Accessories for your O.S. Engine
If you need any spares or accessories for your engine that are not listed on the site please contact us for a price and availability.