OEM Replacement Radiator Fits 1998 to 2001 Dodge RAM;5.9L gas engine;Aluminum core;Replacement for an aged, clogged, or leaking stock radiator;Functions with all factory engine bay equipment;Includes internal automatic transmission fluid cooler which mates perfectly with the stock cooler lines;Mishimoto lifetime warranty DODGE RAM 1500 RAM 2500 RAM 3500 BASE LARAMIE SPORT ST 1998 1999 2000 2001 5.9L Magnum (360) 5.9L Magnum HD (360) GAS Mishimoto Mishimoto OEM Replacement Radiator - R2291 R2291 Radiator