Search by number: 1982 BMW 528 2.7L Alternator ProAmp 13150 $47.00 each OPTIONS: To Mid 1983 ProAmpN 13150N $141.00 each OPTIONS: To Mid 1983 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