Search by number: 2004 Audi A6 & A6 Quattro 3.0L Alternator ProAmp 11065 $143.00 each OPTIONS: 150 Amp Bosch Unit ProAmp 11159 $199.00 each OPTIONS: 140 Amps ProAmp 11071 $256.00 each OPTIONS: 150 Amp Valeo Unit ProAmpN 11065N $289.00 each OPTIONS: 150 Amp Bosch Unit Valeo 11159N $325.00 each OPTIONS: 140 Amps 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