Search by number: 1999 Ford F Series Pickups 7.3L 8 Cyl Diesel Alternator ProAmp 7796 $132.00 each OPTIONS: STANDARD 110AMP UPPER PRIMARY UNIT ProAmp 7799 $137.00 each OPTIONS: 110AMP Ambulance Pkg Secondary (LOWER) Unit ProAmpN 7796N $153.00 each OPTIONS: STANDARD 110AMP UPPER PRIMARY UNIT ProAmpN 7799N $157.00 each OPTIONS: 110AMP Ambulance Pkg Secondary (LOWER) Unit 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