Search by number: 2002 Audi A4 & A4 Quattro 1.8L Alternator ProAmp 13930 $130.00 each OPTIONS: Exc AMB Eng 90 Amp Valeo Unit ProAmp 13921 $146.00 each OPTIONS: Exc AMB Eng 90 Amp Bosch Unit ProAmp 13931 $164.00 each OPTIONS: Exc AMB Eng 120 Amp Valeo Unit ProAmp 11070 $172.00 each OPTIONS: AMB Eng 150 Amp Valeo Unit ProAmp 11064 $194.00 each OPTIONS: AMB Eng 150 Amp Bosch Unit ProAmp 13951 $250.00 each OPTIONS: Exc AMB Eng 120 Amp Bosch Unit ProAmp 11070N $261.00 each OPTIONS: AMB Eng 150 Amp Valeo Unit 100% NEW ProAmpN 13921N $212.00 each OPTIONS: Exc AMB Eng 90 Amp Bosch Unit ProAmpN 13930N $225.00 each OPTIONS: Exc AMB Eng 90 Amp Valeo Unit ProAmpN 13951N $229.00 each OPTIONS: Exc AMB Eng 120 Amp Bosch Unit ProAmpN 11070N $261.00 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