Search by number: 2006 BMW M5 5.0L Alternator ProAmp 11262 $164.00 each OPTIONS: 170 Amp Valeo Unit Valeo 11262N $488.00 each OPTIONS: 170 Amp Valeo 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