Search by number: 1977 Dodge Aspen 3.7L 6 Cyl Alternator ProAmp 7015 $36.00 each OPTIONS: Optional 1-Groove Pulley ProAmp 7024 $49.00 each OPTIONS: Standard 1-Groove Pulley ProAmp 7509 $78.00 each OPTIONS: Standard; 100% New; 60 Amp; Universal 2 groove pulley ProAmp 7521 $149.00 each OPTIONS: Optional 100 Amp ProAmp 7509N110 $239.00 each OPTIONS: Standard; 100% New; 110 Amp; Universal 2 groove pulley ProAmpN 7509N $194.00 each OPTIONS: Standard; 100% New; 60 Amp; Universal 2 groove pulley 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