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OS  |  SKU: L-OS34330  |  Barcode: 4531028024298

O.S. FSa-56 II with F-4040 Silencer (2729N)

£399.49 £424.99
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Latest version of this popular sized, high-performance four-stroke engine.

Features a black rocker cover to suit the appearance in scale models better plus a revised oil breather system. The breather now vents from the crankcase rather than being re-ingested in the inlet, to improve running consistency.

The popular FS56-a now features upgrades that make it even better than before!
Blow-by oil exits through the breather nipple on the back plate, for more stable operation.

Black rocker covers gives this engine a more impressive appearance.
The F-4040 silencer can be positioned to achieve the ideal fit.
Mounts with no-mod ease in the same space as the FS-56a.

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