Search by number: 1999 Dodge Dakota 3.9L 6 Cyl Alternator ProAmp 13823 $100.00 each OPTIONS: 117 Amp NDenso Unit ProAmp 13824 $112.00 each OPTIONS: 136 Amp NDenso 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