Search by number: 1985 Oldsmobile 98 3.0L 6 Cyl Alternator ProAmp 7290-12 $90.00 each OPTIONS: w/HD Option ProAmp 7134-12 $112.00 each OPTIONS: Standard 85 Amp 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