Search by number: 1999 Mercury Sable 3.0L 6 Cyl Alternator ProAmp 7770 $96.00 each OPTIONS: VIN U OHV Eng Option / Grey Regulator ProAmp 7748 $103.00 each OPTIONS: VIN U OHV Eng Standard / White Regulator ProAmp 7780 $114.00 each OPTIONS: VIN S DOHC ProAmpN 7770N $168.00 each OPTIONS: VIN U OHV Eng Option / Grey Regulator ProAmpN 7748N $168.00 each OPTIONS: VIN U OHV Eng Standard / White Regulator ProAmpN 7780N $182.00 each OPTIONS: VIN S DOHC 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