Search by number: 2015 Ram 3500 6.4L 8 Cyl Alternator ProAmp 11477 $189.00 each OPTIONS: Single or Primary Alternator; 180 Amps ProAmp 14027 $269.00 each OPTIONS: Single Alternator; 220 Amps ProAmpN 14027N $266.00 each OPTIONS: Single Alternator; 220 Amps ProAmp 42071 Call for Price OPTIONS: Auxiliary Dual Alternator; 155 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