Search by number: 2005 Audi A4 & A4 Quattro 3.0L Alternator ProAmp 11065 $143.00 each OPTIONS: To Chassis 8H500780 Bosch Unit ProAmp 11161 $164.00 each OPTIONS: From Chassis 8H5007801 ProAmp 11071 $256.00 each OPTIONS: To Chassis 8H500780 Valeo Unit ProAmpN 11065N $289.00 each OPTIONS: To Chassis 8H500780 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