The New Holland 81866561 is a genuine OEM Power Take-Off (PTO) shaft designed for various New Holland agricultural and construction machinery. This essential component ensures reliable power transmission from the engine to implements. It is compatible with T6000 series (T6010, T6020, T6030, T6040, T6050, T6060, T6070, T6080), T7000 series (T7030, T7040, T7050, T7060, T7070), and TS-A series (TS100A, TS110A, TS115A, TS125A, TS130A, TS135A) tractors, as well as TV145 Bi-Directional Tractors and B-series loader backhoes (B110, B110B, B115, B115B).