New Alternator For Ford Mustang 3.8L 3.9L 2001-2004 1R3U-AA, 1R3U-AB, 1R3U-AC, 1R3U-AD 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 **