Replacement Crankshaft for GGT10 Engines OS4A402000 by O.S. Engine  [OS4A402000]

Replacement Crankshaft for GGT10 Series

Identified as O.S. Engine CRANKSHAFT GGT10 with model number OS4A402000, this crankshaft is manufactured for GGT10 series engines and converts piston travel into rotary motion for glow RC engines.

Functionally the crankshaft contributes to balance and interfaces with the crankcase, bearings, connecting rod and flywheel. When fitting a replacement inspect mating surfaces and ball bearings for wear, confirm axial and radial fits, and measure endplay and sealing faces before final assembly. This product description applies to RC engine use only.

Install this crankshaft as a direct replacement to recover smooth rotation after bearing or crankcase servicing, and always verify fit and clearances against the GGT10 engine assembly prior to operation.