Search by number: 1989 GMC Suburban 7.4L 8 Cyl Alternator ProAmp 7802-3 $93.00 each OPTIONS: 85 Amp ProAmp 7273-12 $95.00 each OPTIONS: 66 Amp ProAmp 7294-12 $112.00 each OPTIONS: 94 Amp ProAmp 7901-2 $137.00 each OPTIONS: 120 Amp ProAmp 7127HO110PFC $197.00 each OPTIONS: Custom Built; 110 Amps; 15.1V; 1 Groove billet pulley & fan ProAmp 7127HO110 $214.00 each OPTIONS: Custom Built; 110 Amps; 15.1V; Replaces stock alternator with stock wiring ProAmpN 7294-12N $121.00 each OPTIONS: 94 Amp ProAmpN 7802-3N $123.00 each OPTIONS: 85 Amp ProAmpN 7901-2N $209.00 each OPTIONS: 120 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