Search by number: 2010 Acura ZDX 3.7L 6 Cyl Alternator ProAmp 11391 $176.00 each OPTIONS: Nippondenso type unit 130 Amps ProAmpN 11391N $200.00 each OPTIONS: Nippondenso type unit 130 Amps 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