Search by number: 2004 Audi A4 & A4 Quattro 1.8L Alternator ProAmp 11070 $164.00 each OPTIONS: AMB Eng 150 Amp Valeo Unit ProAmp 11064 $188.00 each OPTIONS: AMB Eng 150 Amp Bosch Unit ProAmp 11070N $282.00 each OPTIONS: AMB Eng 150 Amp Valeo Unit 100% NEW ProAmpN 11070N $282.00 each OPTIONS: AMB Eng 150 Amp Valeo 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