Search by number: 2001 Mercury Cougar 2.5L 6 Cyl Alternator ProAmp 8254 $104.00 each OPTIONS: This unit fits from production date 1/2001 (Check door jam) ProAmp 7775 $109.00 each OPTIONS: This unit fits up to production date 1/2001 (check door jam) ProAmpN 7775N $142.00 each OPTIONS: This unit fits up to production date 1/2001 (check door jam) ProAmpN 8254N $151.00 each OPTIONS: This unit fits from production date 1/2001 (Check door jam) 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