Search by number: 2012 Dodge Challenger 5.7L 8 Cyl Alternator ProAmp 11574 $158.00 each OPTIONS: Nippondenso type unit 160 Amps 6 Groove Serpentine Belt ProAmp 11575 $192.00 each OPTIONS: 180 Amps ProAmp 11576 $231.00 each OPTIONS: 220 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