Search by number: 2011 Ford F-350 Super Duty 6.2L 8 Cyl Alternator ProAmp 11651 $166.00 each OPTIONS: Valeo type unit 150 Amps w/oHill Descent Control ProAmp 11620 $277.00 each OPTIONS: Nippondenso type unit 225 Amps w/Hill Descent Control 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