Original Derbi Euro 4 ignition rotor for D50B0 moped engines.

This OEM component is essential for reliable starting and charging performance across Derbi Senda, Gilera SMT/RCR, and Aprilia SX/RX models. Worn or damaged rotors compromise ignition timing and electrical output — replace promptly to avoid breakdowns.

Piaggio OEM part number : 1A008985. 

Direct fit for all Euro 4 compliant Derbi powerplants.