Search by number: 1973 BMW 2002 2.0L Alternator ProAmp 13027 $74.00 each OPTIONS: 2002tii Series ProAmp 13018 $85.00 each OPTIONS: 2002 Series 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