Search by number: 1986 Chevrolet P Series Trucks 7.4L 8 Cyl Alternator ProAmp 7273-12 $95.00 each OPTIONS: Standard 66 Amp ProAmp 7135M $112.00 each OPTIONS: Optional 80 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 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