FS-95V Cylinder Head Gasket OS40914000 for O.S. Engine  [OS40914000]

FS-95V replacement head gasket

This O.S. Engine OS40914000 head gasket is a dedicated replacement part for the FS-95V glow engine range. It provides a thin sealing layer to maintain combustion compression and stop leaks between the head and crankcase on nitro model engines.

Compatibility is restricted to items marked FS-95V. Confirm the engine code on your cylinder head matches FS-95V before purchase. No compatibility beyond the FS-95V listing is implied.

Fitting is simple for those experienced with glow powerplants: strip the head, clean mating faces of debris or old gasket material, place the gasket flat on the head or crankcase, then tighten the head screws in the manufacturer recommended sequence and torque values. Do not overtighten; retest after a short run and check compression and idle prior to final tuning.

For servicing and tuning the gasket is a sealing component rather than a power part; stable head sealing preserves repeatable compression which makes needle settings and break-in behavior more consistent.