Part needed, used or new. I need LR part number ERC9453. It is the nipple fitting for the heater hose on a later metric threaded 2.25 or 2.5 engines. It threads into a port on the rear side of the head. The fitting thread size is 16m x 1.0. Some of these heater hose fittings used a tampered thread but this fitting threads into the head at the back of the 4 cylinder metric engines and is a straight thread. If anyone has such an item from a donner engine or a source in the US please let me know. RN does not have it. Thanks.