Search by number: 1992 BMW M5 3.6L Alternator ProAmp 13362 $170.00 each OPTIONS: 115 Amp Bosch Unit ProAmp 13365 $180.00 each OPTIONS: 140 Amp Bosch Unit 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