Search by number: 1981 Audi Coupe GT 2.2L Alternator ProAmp 14000 $104.00 each OPTIONS: w/AC Standard 75 Amp ProAmp 13129 $112.00 each OPTIONS: wo/AC 65 Amp ProAmp 13122 $153.00 each OPTIONS: w/AC Option 90 Amp ProAmpN 14000N $166.00 each OPTIONS: w/AC Standard 75 Amp 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