Search by number: 2001 Mercury Marquis 4.6L 8 Cyl Alternator ProAmp 7773 $121.00 each OPTIONS: Standard 130 Amp 4GHO Alt ProAmp 7795 $125.00 each OPTIONS: Optional 135 Amp Police Option 6G Alt ProAmp 7773HD200 $274.00 each OPTIONS: 200 Amp; Custom Built ProAmpN 7773N $157.00 each OPTIONS: Standard 130 Amp 4GHO Alt ProAmpN 7795N $168.00 each OPTIONS: Optional 135 Amp Police Option 6G Alt 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