Search by number: 2015 Infiniti Q70L 3.7L 6 Cyl Alternator ProAmp 11340 $140.00 each OPTIONS: 150 Amps; Sport pkg ProAmp 11438 $161.00 each OPTIONS: 130 Amps; Excl Sport pkg 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