A voltage regulator that replaces OEM reg/rec. Direct OEM replacement, no adaption or connector assembly required. Compatibility chart is for reference only. OEM Part Number: 540.4.019.1A/540.4.027.1A Fits: Ducati (11-11) SuperBike 848 EVO (04-06) SuperBike 749 S (07-10) SuperBike 1098 Standard (10-10) SuperBike 1098 SCORSE (03-06) SuperBike 999 S (07-10) SuperBike 1098 S (06-06) SuperBike 999 RXEROX (12-12) SuperBike 848 Corse (04-06) SuperBike 749 R (08-08) SuperBike 1098 (09-09) SuperBike 1098 RBAYLISS (03-06) SuperBike 999 R (12-12) StreetFighter 1098 S (09-11) SuperBike 1198 S (08-12) SuperBike 848 (10-10) SuperBike 1098 RCORSE (12-12) StreetFighter 848 S (03-03) SuperBike 749 (07-07) SuperBike 1098 STRICOLORE (08-09) SuperBike 1098 R (03-04) Multistrada 1000 DS (10-11) StreetFighter 1099 S (09-11) SuperBike 1198 R (09-11) SuperBike 1198 Standard, Replaces Shindengen SH579EA, Ducati (05-06) SuperBike 749 DARK (03-06) SuperBike 999 Standard (03-06) SuperBike 999 Standard * Please check with P/N and plug size to confirm fitment *