Search by number: 2000 GMC Yukon XL 5.3L 8 Cyl Alternator ProAmp 13860 $110.00 each OPTIONS: 130 Amps Bosch; Mexico Built Truck ProAmp 8237 $143.00 each OPTIONS: Wisconsin Built Truck Delco Unit ProAmpN 8237N $153.00 each OPTIONS: Wisconsin Built Truck Delco Unit ProAmpN 13860N $212.00 each OPTIONS: 130 Amps Bosch; Mexico Built Truck 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