Chung Yang RC starter assembly.
HPI Part #15478
As pictured, includes inner reel, cord, pawl, etc. Also 4 x mounting bolts (M4 x 16).
Stock part on the CY23, CY26, CY27, CY29, and GP290 engines.
Can be interchanged with the Zenoah coil, on all Zenoah RC engines.