Compatible with models:

Vespa Models:
Vespa PK 50 / 125: PK 50 SS, PK 50 XL Plurimatic, PK 50 N Speedmatic, PK 50 FL2 Automatica, PK 125 S, PK 125 S Automatica, PK 125 ETS, PK FL, PK N, PK XL, PK Elestart
Vespa PX / PE / Arcobaleno: Vespa PX 125, 150, 200 (versions with turn signals/battery, Arcobaleno, America, T5, P 200 E)
Vespa ET2 / ET4: Vespa ET2 50, Vespa ET4 (e.g., ET4 125cc up to 1999)
Vespa Cosa (Elestart versions)

Piaggio Ape:
Ape 50: Ape 50 FL/FL2, Ape 50 FL3 Europa, Ape P (TL3T), Ape TM (TL4T)