Search by number: 2004 Ford Focus 2.3L 4 Cyl Alternator ProAmp 8440 $114.00 each OPTIONS: w/AT ProAmp 8439 $164.00 each OPTIONS: w/MT ProAmpN 8440N $194.00 each OPTIONS: w/AT ProAmpN 8439N $204.00 each OPTIONS: w/MT 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