Search by number: 1984 GMC P Series Trucks 6.2L 8 Cyl Diesel Alternator ProAmp 7273-12 $95.00 each OPTIONS: Standard ProAmp 7294-12 $112.00 each OPTIONS: Optional HD P42 Chassis ProAmp 7134-3 $116.00 each OPTIONS: Optional HD P32 Chassis 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: Optional HD P42 Chassis 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