Search by number: 1999 Ford F Series Pickups 4.6L 8 Cyl Alternator ProAmp 7790 $108.00 each OPTIONS: Standard 95 Amp; 8 groove pulley ProAmp 7791 $110.00 each OPTIONS: Optional 130 Amp; 8 groove pulley ProAmpN 7790N $168.00 each OPTIONS: Standard 95 Amp; 8 groove pulley ProAmpN 7791N $176.00 each OPTIONS: Optional 130 Amp; 8 groove pulley ProAmp 7791-HD200 Call for Price OPTIONS: Custom Built; 240 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