Hot Shot style Aprilia rectifier regulator; this aftermarket rec-reg is made with cooling Mosfet technology and will replace OE#: AP9100424. It will fit Aprilia 05-12 RXV450, 05-12 RXV550, 05-12 SXV450 and 05-12 SXV550.

Fits

Aprilia: 05-12 SXV 450 450cc; 05-12 SXV 550 550cc