Part Number 06J903803A - Alternator voltage regulator - New genuine original VW Audi Skoda SEAT part - To fit BOSCH alternators - Will not fit all, please check with us To Fit Volkswagen Audi Skoda SEAT - Various models, please check with us **This part may not fit all variations of the above models. Please send us your UK reg number or 17 digit VIN/Chassis number as we can quickly confirm if this is the correct part for your vehicle.