The Case IH 672991C is a genuine OEM tensioning screw designed for various International Harvester and Case IH tractor models. This essential component ensures proper tensioning within the compressor system, contributing to the optimal performance and reliability of the machinery. It is compatible with models including the 955, 955XL, 956, 956XL, 1055, 1055XL, 1056, 1056XL, 1255, 1255XL, 1455, and 1455XL series.