Search by number: 2009 Buick Enclave 3.6L 6 Cyl Alternator ProAmp 11252 $177.00 each OPTIONS: 170 Amp, NDenso Unit ProAmpN 11252N $269.00 each OPTIONS: 170 Amp, NDenso Unit 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