Search by number: 1986 GMC G Series Vans 5.7L 8 Cyl Alternator ProAmp 7157M $90.00 each OPTIONS: Ryder 100 Amp Option ProAmp 7127-3 $94.00 each OPTIONS: Standard 63 Amps; 1 Groove Pulley ProAmp 7273-3 $95.00 each OPTIONS: Standard w/AC 78 Amps 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 7127-3N $108.00 each OPTIONS: Standard 63 Amps; 1 Groove Pulley ProAmpN 7157MN $145.00 each OPTIONS: Ryder 100 Amp Option 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