Search by number: 2005 Ford GT 5.4L 8 Cyl Alternator ProAmp 7787 $133.00 each OPTIONS: All ProAmp 7787HD220 $298.00 each OPTIONS: 220 Amp; Custom Built ProAmpN 7787N $182.00 each OPTIONS: All 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