Search by number: 1987 GMC Full Size Pickups 7.4L 8 Cyl Alternator ProAmp 7802-3 $93.00 each OPTIONS: C K - w/AC Standard 100 Amp ProAmp 7273-12 $95.00 each OPTIONS: R V Models - 66 Amp ProAmp 7294-12 $112.00 each OPTIONS: R V Models - 94 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: R V Models - 94 Amp ProAmpN 7802-3N $123.00 each OPTIONS: C K - w/AC Standard 100 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