Search by number: 2004 Chevrolet Monte Carlo 3.4L 6 Cyl Alternator ProAmp 13989 $115.00 each OPTIONS: Bosch Unit OE # 0-124-415-033 ProAmp 8288 $192.00 each OPTIONS: Delco Unit OE # 10333165 ProAmpN 8288N $190.00 each OPTIONS: Delco Unit OE # 10333165 ProAmpN 13989N $216.00 each OPTIONS: Bosch Unit OE # 0-124-415-033 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