"An original a/c ""dog leg"" idler bracket for all 1967 Ford & Mercury 289/302 engines equipped with factory air-conditioning. This is the piece that the adjustable idler, used for tensioning the a/c compressor drive belt, attaches to. It bolts to the water pump & compressor for support. NOTE - Some late 1967 models used a different (stamped steel) idler bracket & idler. This will only work if used with the correct adjustable idler. (See our part #07-149)