FITS ALL SDV8 4.4 ENGINE'S. OIL FEED PIPE TO TURBO 2X O RING. THE 2 O RINGS ON THE TURBO FEED PIPE MUST BE REPALCED. -- THIS IS A MUST IF YOU ARE REPALCING THE OIL COOLER IN THE V OF THE ENGINE -- DUE TO THE COMMON OIL LEAK DOWN THE BACK OF THE ENGINE !