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

GGT10 Series Crankshaft Overview

This crankshaft is a replacement part specified as O.S. Engine CRANKSHAFT GGT10 and identified by model number OS4A402000. It is intended for use with GGT10 series engines and performs the vital role of converting piston motion into rotational output in glow RC engines.

In service the crankshaft influences rotational balance and interfaces directly with the crankcase, bearings, connecting rod, and flywheel; when replacing this part inspect mating surfaces and ball bearings for wear, verify axial and radial fits, and confirm endplay and sealing surfaces before final assembly. This description assumes the part is used on RC engines only.

Use this crankshaft as a direct service replacement when restoring engine rotation quality or after bearing and crankcase work, and always verify fit and clearances against the specific GGT10 engine assembly prior to running.