Search by number: 2011 Audi A3 2.0L 4 Cyl Alternator ProAmp 23255 $161.00 each OPTIONS: Gas; 140 Amps BOSCH; Pad mount ProAmp 11134 $170.00 each OPTIONS: Diesel; 140 Amps BOSCH; Hinge mount ProAmp 23256 $174.00 each OPTIONS: Gas; 140 Amps VALEO; Pad mount ProAmp 11149 $182.00 each OPTIONS: Diesel; 140 Amps VALEO; Hinge mount ProAmpN 11134N $228.00 each OPTIONS: Diesel; 140 Amps BOSCH; Hinge mount ProAmpN 23256N $323.00 each OPTIONS: Gas; 140 Amps VALEO; Pad mount 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