Search by number: 2011 Ford F-150 6.2L 8 Cyl Alternator ProAmp 11651 $166.00 each OPTIONS: 150 Amps HD Towing Pkg ProAmp 11620 $277.00 each OPTIONS: 200 Amps Excluding HD Towing Pgk 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