Chevrolet / GMC / Chevy / GM ,Topkick, Radiator, (I-8642, 15921764, 1003650, 1003650AS, 1003650AB, 07083001, 15258915, 21695, 15921764, 15013564, 15170908, 15013569, 19130053, 8152589150, 15258913, 15013568, 88551, GMC764, GMC28, CTVTU82373, 238642, 437294P, LT9196, HD9196 )2003-2007, 8.1