New Alternator 12V 145 AMP Chevy Chevrolet Truck Avalanche Silverado C 6.0L 6.0 6.6L 6.6 8.1L 8.1, Saab Oldsmobile Isuzu Hummer, 6019239 10464405 15263859 15200109 15-22-6003 8400079 Brand New - Manufactured with New Premium Quality Components Engineered to Meet or Exceed OEM Specifications All Items Tested for Reliability, Durability and Performance One Year Hassle Free Guarantee ** See Product Description for Fitment Chart **