Search by number: 2003 Audi A6 & A6 Quattro 3.0L Alternator ProAmp 11065 $143.00 each OPTIONS: 150 Amp Bosch Unit ProAmp 11071 $256.00 each OPTIONS: 150 Amp Valeo Unit ProAmpN 11065N $289.00 each OPTIONS: 150 Amp Bosch Unit Why is there more than one unit for my car? Look at the TECH SPECS when more than one unit is shown for your car. AMPS (ELECTRIC CAPACITY): must match you vehicle electric requirements. *** Call us if you are looking to increase your unit capacity! OE ALTERNATOR MANUFACTURER: It is recommended to match the Make of your alternator