Mishimoto MMRAD-DMAX-01 Chevrolet/GMC 6.6L Duramax Aluminum Radiator, 2001-2005, Silver Direct fit for 2001-2005 6.6L Duramax Overall Size: 45.6 x 20.8 x 5.4 / Core Size: 34.06 x 19.61 / Rows: 2 Inlet & Outlet: 1.89 / Core Thickness: 2.2 / Tank Wall Thickness: 0.08 All-aluminum construction includes magnetic drain plug Mishimoto Lifetime Warranty