Search by number: 2013 Audi A4 Quattro 2.0L 4 Cyl Alternator ProAmp 11706 Call for Price OPTIONS: Turbocharged; 180 Amps; FLEX ProAmp 11724 Call for Price OPTIONS: Turbocharged; To 05/28/2012; 150 Amps ProAmp 11725 Call for Price OPTIONS: Turbocharged; 150 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