Search by number: 2005 Chevrolet Equinox 3.4L 6 Cyl Alternator ProAmp 11145 $110.00 each OPTIONS: 145 Amp ProAmpN 11145N $249.00 each OPTIONS: 145 Amp 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