NEW HIGH AMP 250A ALTERNATOR FITS 02 03 04 CHEVROLET AVALANCHE 5.3 10464443 10480390 100% NEW and Made with the Highest Quality Components Available Full One Year Warranty Computer tested for consistent Quality and unsurpassed reliability Alternator - Voltage: 12V Amperage: 250 Amps Fan: Internal Regulator: Internal Pulley: Serpentine Grooves: 6 Connector Type: 4 Pins Source: Aftermarket Replaces Part Numbers: 10464443 10464443 10480390 10480390